acs 2000ad appl sw troubleshooting manual

© ABB Switzerland Ltd. All Rights Reserved.

ACS 2000AD Medium Voltage Drives

Troubleshooting Manual

Software Version: LDAI60xx Rev.- Release Date: 05/11/2011

2/46 Version LDAI60xx Rev.- Troubleshooting Manual

LDAI60xx Rev.- ACS 2000AD 3/46

ABB reserves all rights to this document. Misuse, in particular duplication and forwarding to third parties, is not permitted.

This document has been checked with due care and attention. However, should the user find any errors, these should be reported to ABB.

ABB aims to maintain the most modern standard, therefore, entries in this manual may differ from the actual product.



Table of Contents

Table of Contents ................................................................................................................ 4

Troubleshooting Manual .................................................................................................... 5

Faults ............................................................................................................................................... 7 Alarms ............................................................................................................................................ 29



If information is required beyond the instructions in this manual, contact ABB as follows:

ABB Switzerland Ltd

Medium Voltage Drives

CH-5300 Turgi, Switzerland

Phone:+41 844 845 845

Fax: +41 58 589 2984

[email protected]

mailto:[email protected]�


Faults

Panel Text ACDA Aux ON Ackn Description ACDA – Auxiliary ON Acknowledge signal, received via CH4, is missing (AUX ON SEQ3 & 2 min

timeout); DataSet 100 Value 2 - Bit02 Causes - ACAD (auxiliary control device adapter) is not ready to switch on the auxiliarys - Wrong

parameter settings (e.g. Node Addr.) - DDCS fiber optic cables are not properly connected or have Wrong polarity - Aux. Control Device Adapater (ACDA) board defective

Rectification 1 Check Aux. Control Device Adapater (ACDA) auxiliarys 2 Check that parameter settings correspond to the external communication interface 3 Check power supply of external communication interface 4 Check connections and polarity of fiber optics 5 Check Aux. Control Device Adapater (ACDA)

FaultClass INU FC2 FaultClass ARU Fault Word 09.20: FAULT WORD 1 FC2 Bit b13 Related Parameters Related IO AMC34 - CH4 Panel Text ACDA FC1 Active Description ACDA requesting Fault Class 1 (MCB opening), received via CH4; DataSet 100 Value 3 - Bit02 Causes - Fault class 2 with low priority in ACAD (auxiliary control device adapter) is active Wrong


Rectification 1 Check reasson for FC2 in Aux. Control Device Adapater (ACDA) 2 Check that parameter settings correspond to the external communication interface 3 Check power supply of external communication interface 4 Check connections and polarity of fiber optics 5 Check Aux. Control Device Adapater (ACDA)

FaultClass INU FC1 FaultClass ARU Fault Word 09.09: FAULT WORD 1 FC1 Bit b14 Related Parameters Related IO AMC34 - CH4 Panel Text ACDA FC2 Active Description ACDA requesting Fault Class 2 (MCB stays closed), received via CH4 ; DataSet 100 Value 3 -

Bit03 Causes - Fault class 2 in ACAD (auxiliary control device adapter) is active - Wrong parameter settings

(e.g. Node Addr.) - DDCS fiber optic cables are not properly connected or have Wrong polarity - Aux. Control Device Adapater (ACDA) board defective

Rectification 1 Check reasson for FC2 in Aux. Control Device Adapater (ACDA) 2 Check that parameter settings correspond to the external communication interface 3 Check power supply of external communication interface 4 Check connections and polarity of fiber optics 5 Check Aux. Control Device Adapater (ACDA)

FaultClass INU FC2 FaultClass ARU Fault Word 09.20: FAULT WORD 1 FC2 Bit b14 Related Parameters Related IO AMC34 - CH4 Panel Text AMC: FAULT CLASS 1D Description Fault class 1 fault with defect is active (reset of fault is only possible with a power cycle of the

AMC board) Causes Pending FC1 with defect Rectification Check for other faults FaultClass INU FaultClass ARU Fault Word 09.19: FAULT WORD 1 FC1D Bit b00 Related Parameters Related IO



Panel Text ARC Detected FC1 Description Process Stop function (used as ARC Detection) is active (as requested) NOTE! Process Stop

function is used - fault & alarm text are indicated as "ARC Detected FC1" ARC is set by parameter 210.20.

Causes - Process Stop function (used as ARC detection) is active (as requested) - Wrong parameter settings - Loose or disconnected wire(s)

Rectification 1 Check parameter settings 2 Check programmed "Process Stop" function (limit value, monitored signal)

FaultClass INU FC1 FaultClass ARU Fault Word 09.13: FAULT WORD 5 FC1 Bit b13 Related Parameters Related IO Panel Text ARC Detected FC2 Description Process Stop function (used as ARC Detection) is active (as requested) NOTE! Process Stop

function is used - fault & alarm text are indicated as "ARC Detected FC2" ARC is set by parameter 210.20.

Causes - Process Stop function (used as ARC detection) is active (as requested) - Wrong parameter settings - Loose or disconnected wire(s)

Rectification 1 Check parameter settings 2 Check programmed "Process Stop" function (limit value, monitored signal)

FaultClass INU FC2 FaultClass ARU Fault Word 09.22: FAULT WORD 3 FC2 Bit b13 Related Parameters Related IO Panel Text ARU FC1Trip Description Trip req. from ARU Causes Fault in ARU side. Rectification Check fault logger on ARU panel. FaultClass INU FC1 FaultClass ARU FC1 Fault Word 09.09: FAULT WORD 1 FC1 Bit b07 Related Parameters Related IO Panel Text AuxPowerUnderVolt Description An auxiliary supply power loss is detected through digital input. Causes - External undervoltage monitoring device active (digital input) - Wrong parameter settings -

Loose or disconnected wire(s) - IOEC I/O Module faulty Rectification 1 Check undervoltage monitoring device 2 Check wiring 3 Check parameters settings 4 Check

IOEC modules FaultClass INU FC1 FaultClass ARU Fault Word 09.10: FAULT WORD 2 FC1 Bit b07 Related Parameters Related IO IOEC1 - DI7 Panel Text AuxRideThrough Description An auxiliary supply power loss is detected through digital input. Causes - External undervoltage monitoring device active (digital input) - Internal cooling water pressure

to low - Wrong parameter settings - Loose or disconnected wire(s) - S800 I/O Moule faulty - S800 terminal unit broken

Rectification 1 Check undervoltage monitoring device 2 Check other faults (water cooling system) 3 Check wiring 4 Check parameters settings 5 Check S800 modules

FaultClass INU FC1 FaultClass ARU Fault Word 09.10: FAULT WORD 2 FC1 Bit b08 Related Parameters Related IO


Panel Text CC1 PressDropFlt Description Cooling circuit 1 (converter compartment) pressure drop fault Causes - wrong settings of pressure monitoring - faulty pressure sensor - wrong wiring - wrong

parameter settings Rectification 1) Check HW settings of pressure sensor 2) Check sensor 3) Check wiring 4) Check parameter

settings FaultClass INU FaultClass ARU Fault Word 52.01: ACU FAULT WORD 1 FC1 Bit b00 Related Parameters Related IO IOEC1 - DI10 Panel Text CC2 PressDropFlt Description Cooling circuit 2 (DTL, in case of ACS 2000 6kV configuration, or integrated transformer

compartment) pressure drop fault Causes - Wrong settings of pressure monitoring - faulty pressure sensor - wrong wiring - wrong

parameter settings Rectification 1) Check HW settings of pressure sensor 2) Check sensor 3) Check wiring 4) Check parameter

settings FaultClass INU FaultClass ARU Fault Word 52.01: ACU FAULT WORD 1 FC1 Bit b01 Related Parameters Related IO IOEC3 - DI3 Panel Text CH0 CommLoss Description AMC DDCS CH0 communication lost Causes - Communication time-out setting too small - Wrong parameter settings (e.g. Node Addr.) -

DDCS fiber optic cables are not properly connected or have wrong polarity - AMC board defective - Fieldbus Module defective

Rectification 1 Check that parameter settings correspond to the external communication interface 2 Check power supply of external communication interface 3 Check connections and polarity of fiber optics

FaultClass INU FC1, FC2 FaultClass ARU Fault Word 09.09: FAULT WORD 1 FC1 Bit b09 Related Parameters Related IO AMC34 - CH0 Panel Text CH2 CommLoss Description AMC DDCS CH2 communication lost Causes - Communication time-out setting too small - Wrong parameter settings (e.g. Node Addr.) -

DDCS fiber optic cables are not properly connected or have Wrong polarity - AMC board defective


FaultClass INU FC1, FC2 FaultClass ARU Fault Word 09.09: FAULT WORD 1 FC1 Bit b10 Related Parameters Related IO AMC34 - CH2 Panel Text CH4 CommLoss Description AMC DDCS CH4 communication lost Causes - Communication time-out setting too small - Wrong parameter settings (e.g. Node Addr.) -



FaultClass INU FC1, FC2 FaultClass ARU Fault Word 09.09: FAULT WORD 1 FC1 Bit b11 Related Parameters Related IO AMC34



Panel Text ChargeTimeMinimum Description Charging time was shorter than minimum charging time. DC voltage has reached charging level

before the minimum charging time has elapses. MCB is prevented from closing. Causes - Fault in voltage measurement - Faulty capacitors - Wrong parameter settings Rectification 1 Check charging unit 2 Check parameter settings FaultClass INU FC1 FaultClass ARU Fault Word 09.10: FAULT WORD 2 FC1 Bit b02 Related Parameters Related IO IOEC1 - DO4/DO5 Panel Text ChargingTimeout Description Charging of DC link failed due to timeout. Maximum charging time exceeded. Causes - Faulty charging circuit - Wrong parameter settings. Rectification 1 Check charging method 2 Check charging transformer FaultClass INU FC1 FaultClass ARU Fault Word 09.10: FAULT WORD 2 FC1 Bit b00 Related Parameters Related IO Panel Text ConvAirTempHigh Description Air temperature inside the converter (COU) too high. Fault level reached Causes - Faulty temperature sensor - Wrong wiring - Wrong parameter settings Rectification 1) Check temperature sensor 2) Check wiring 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 52.03: ACU FAULT WORD 1 FC2 Bit b00 Related Parameters Related IO Panel Text ConvHeaterMon Description Monitoring of converter space heater has released Causes - Thermal protection of converter space heater has released - Wrong parameter settings - Wrong

wiring Rectification 1) Check thermal protection inside the COU 2) Check parameter settings 3) Check wiring FaultClass INU FaultClass ARU Fault Word 52.02: ACU FAULT WORD 2 FC1 Bit b10 Related Parameters Related IO Panel Text ConvHeaterMon Description Monitoring of converter space heater has released Causes - Thermal protection of converter space heater has released - Wrong wiring - Wrong parameter

settings Rectification 1) Check thermal protection 2) Check wiring 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 52.03: ACU FAULT WORD 1 FC2 Bit b10 Related Parameters Related IO Panel Text CubicleDoorOpen Description Cubicle door status open while in operating state. Causes - Loose or disconnected wires) Rectification 1 Check control cables FaultClass INU FC1 FaultClass ARU Fault Word 09.09: FAULT WORD 1 FC1 Bit b06 Related Parameters Related IO


Panel Text CustSupSig1 Description Customer supervision function 1 is active. Causes - The customer supervision function 1 is active (as requested) - Wrong parameter settings Rectification 1 Check "monitored" signal (as requesetd) 2 Check connection in supervision function 3 Check

parameters settings FaultClass INU FC1 FaultClass ARU Fault Word 09.11: FAULT WORD 3 FC1 Bit b09 Related Parameters Related IO Panel Text CustSupSig1 Description Customer supervision function 1 is active. Causes - The customer supervision function 1 is active (as requested) - Wrong parameter settings Rectification 1 Check "monitored" signal (as requesetd) 2 Check connection in supervision function 3 Check





parameters settings FaultClass INU FC2 FaultClass ARU Fault Word 09.22: FAULT WORD 3 FC2 Bit b06 Related Parameters Related IO



Panel Text DC < MCBCloseLevel Description DC level too low, MCB closing failed (AuxOn Seq) Causes - DC link voltage level at which The MCB closing is enabled (MCB close order possible) not

reached. - Wrong parameter settings Rectification 1 Check that parameter settings are correct and correspond to the MCB control interface 2

Check charging unit FaultClass INU FC1 FaultClass ARU Fault Word 09.09: FAULT WORD 1 FC1 Bit b04 Related Parameters Related IO Panel Text DC NotCharging Description DC not rising after charging started (the DC - Voltage is not rising above discharge level within

2s after charging command has been given). Causes - Fault in voltage measurement - Faulty capacitors Rectification 1 Check and measure the charging circuit. 2 Check the inverter measured DC voltage levels. 3

Measure the input supply voltage. 4 Measure all three phase to phase voltages under normal operation to ensure that your supply is stiff.

FaultClass INU FC1 FaultClass ARU Fault Word 09.10: FAULT WORD 2 FC1 Bit b03 Related Parameters Related IO IOEC1 - DO5 Panel Text DischargingTimeout Description Discharging of DC link failed due to timeout. Maximum discharging time exceeded. Before the

DC link is considered as discharged (and for example the cabinet door locking is released) the measured DC voltage level has to be below the discharged level.

Causes - Faulty discharging circuit (discharging will take place via ARU) - Wrong parameter settings. Rectification 1 Check discharging method FaultClass INU FC1 FaultClass ARU Fault Word 09.10: FAULT WORD 2 FC1 Bit b01 Related Parameters Related IO Panel Text ExternalMotor Description External motor protection fault Causes - External motor system faulty - Wrong wiring - Wrong parameter settings Rectification 1) Verify parameter settings 2) Check wiring 3) Check the motor FaultClass INU FaultClass ARU Fault Word 09.24: FAULT WORD 5 FC2 Bit b05 Related Parameters Related IO Panel Text ExternalTrafo Description External transformer fault Causes - External transformer circuit has a pending fault - Wrong wiring - Wrong parameter settings Rectification 1) Check external transformer protection circuit 2) Check wiring 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 09.14: FAULT WORD 6 FC1 Bit b00 Related Parameters Related IO


Panel Text ExtMCBProt1Flt Description External MCB protection fault class 1 function 1 is active. Causes - External MCB monitoring device tripped - Wiring in protection circuit faulty - Parameter settings

wrong - S800 module faulty Rectification 1 Check external MCB protection device 2 Check that all trip limit settings are correctly set in

external motor protection device 3 Check wiring between external protection device and ACS 2000 4 Check wiring to protection device inputs 5 Check parameter settings

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 09.12: FAULT WORD 4 FC1 Bit b02 Related Parameters Related IO Panel Text ExtMCBProt1Flt Description External MCB protection fault class 2 function 1 is active. Causes - External MCB monitoring device tripped - Wiring in protection circuit faulty - Parameter settings



FaultClass INU FC2 FaultClass ARU Fault Word 09.23: FAULT WORD 4 FC2 Bit b00 Related Parameters Related IO Panel Text ExtMCBProt2Flt Description External MCB protection fault class 1 function 2 is active. Causes - External MCB monitoring device tripped - Wiring in protection circuit faulty - Parameter settings



FaultClass INU FC1 FaultClass ARU FC1 Fault Word 09.12: FAULT WORD 4 FC1 Bit b06 Related Parameters Related IO Panel Text ExtMCBProt2Flt Description External MCB protection fault class 2 function 2 is active. Causes - External MCB monitoring device tripped - Wiring in protection circuit faulty - Parameter settings



FaultClass INU FC2 FaultClass ARU Fault Word 09.23: FAULT WORD 4 FC2 Bit b04 Related Parameters Related IO Panel Text ExtMotorProt1Flt Description External motor protection fault class 1 function 1 is active. Causes - External motor monitoring device tripped - Wiring in protection circuit faulty - Parameter settings

wrong - S800 module faulty Rectification 1 Check external motor protection device 2 Check that all trip limit settings are correctly set in


FaultClass INU FC1 FaultClass ARU FC1 Fault Word 09.12: FAULT WORD 4 FC1 Bit b03 Related Parameters Related IO



Panel Text ExtMotorProt1Flt Description External motor protection fault class 2 function 1 is active. Causes - External motor monitoring device tripped - Wiring in protection circuit faulty - Parameter settings



FaultClass INU FC2 FaultClass ARU Fault Word 09.23: FAULT WORD 4 FC2 Bit b01 Related Parameters Related IO Panel Text ExtMotorProt2Flt Description External motor protection fault class 1 function 2 is active. Causes - External motor monitoring device tripped - Wiring in protection circuit faulty - Parameter settings



FaultClass INU FC1 FaultClass ARU FC1 Fault Word 09.12: FAULT WORD 4 FC1 Bit b07 Related Parameters Related IO Panel Text ExtMotorProt2Flt Description External motor protection fault class 2 function 2 is active. Causes - External motor monitoring device tripped - Wiring in protection circuit faulty - Parameter settings



FaultClass INU FC2 FaultClass ARU Fault Word 09.23: FAULT WORD 4 FC2 Bit b05 Related Parameters Related IO Panel Text ExtRef1Lost Description External reference 1 signal loss. Causes - Analoge input signal is missing or signal level has dropped below the present minimum limit -

Wrong signal type selected (mA, V) - Loose or disconnected wire(s) - Grounding of wiring may be done improperly - IOEC Module

Rectification 1 Check parameter settings. 2 Check the auxiliary power supply of the external control device (if installed). 3 Measure the input signal with a multimeter to verify the correct signal level. If there is no signal at all, check the wiring between the external control device and the analog input 4 Check IOEC

FaultClass INU FC2 FaultClass ARU Fault Word 09.21: FAULT WORD 2 FC2 Bit b00 Related Parameters Related IO IOEC2 - AI1


Panel Text ExtRef2Lost Description External reference 2 signal loss. Causes - Analoge input signal is missing or signal level has dropped below the present minimum limit -


Rectification 1 Check parameter settings. 2 Check the auxiliary power supply of the external control device (if installed). 3 Measure the input signal with a multimeter to verify the correct signal level. If there is no signal at all, check the wiring between the external control device and the analog input 4 Check IOEC

FaultClass INU FC2 FaultClass ARU Fault Word 09.21: FAULT WORD 2 FC2 Bit b01 Related Parameters Related IO IOEC1 - AI1 Panel Text ExtTrafoProt1Flt Description External transformer protection fault class 1 function 1 is active. Causes - External transformer monitoring device tripped - Wiring in protection circuit faulty - Parameter

settings wrong - S800 module faulty Rectification 1 Check external transformer protection device 2 Check that all trip limit settings are correctly set

in external motor protection device 3 Check wiring between external protection device and ACS 2000 4 Check wiring to protection device inputs 5 Check parameter settings

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 09.12: FAULT WORD 4 FC1 Bit b04 Related Parameters Related IO Panel Text ExtTrafoProt1Flt Description External transformer protection fault class 2 function 1 is active. Causes - External transformer monitoring device tripped - Wiring in protection circuit faulty - Parameter



FaultClass INU FC2 FaultClass ARU Fault Word 09.23: FAULT WORD 4 FC2 Bit b02 Related Parameters Related IO Panel Text ExtTrafoProt2Flt Description External transformer protection fault class 1 function 2 is active. Causes - External transformer monitoring device tripped - Wiring in protection circuit faulty - Parameter



FaultClass INU FC1 FaultClass ARU FC1 Fault Word 09.12: FAULT WORD 4 FC1 Bit b08 Related Parameters Related IO Panel Text ExtTrafoProt2Flt Description External transformer protection fault class 2 function 2 is active. Causes - External transformer monitoring device tripped - Wiring in protection circuit faulty - Parameter






Panel Text GndSwitchClosed Description DC link grounding switch closed ackn. while charging. Causes - Ground switch closed - No feedback signal from grounding isolator - Malfunction in control

circuit of grounding isolator - Loose or disconnected wire(s) Rectification 1 Check that grounding isolator is open. 2 If not, close all doors and open grounding isolator FaultClass INU FC1 FaultClass ARU Fault Word 09.09: FAULT WORD 1 FC1 Bit b05 Related Parameters Related IO IOEC1 - DI5/DI6 Panel Text HV DC ChrgRelay Description High voltage side "DC link charging relay" - fault monitoring. The DC high voltage side is not

charging - the relay is maybe broken. Causes - HV charging relay broken - Wrong parameter settings - Loose or disconnected wire(s) Rectification 1 Check charging unit 2 Check HV - Relay FaultClass INU FC1 FaultClass ARU Fault Word 09.10: FAULT WORD 2 FC1 Bit b05 Related Parameters Related IO IOEC1 - DO4 Panel Text InpSw CtrlFlt Description Input switch has not operated on time (Valid for isolator and breaker). Feedback signal not

received within defined time. Causes - Input switch not operating - Wrong parameter setting - Position indicator defective - Loose or

disconnected wire(s) Rectification 1 Check input switch position (Isolator / Breaker) 2 Check input switch indicator devices 3 Check

power supply for inverter 4 Check parameter settings 5 Check wiring and connections FaultClass INU FC1 FaultClass ARU Fault Word 09.16: FAULT WORD 8 FC1 Bit b01 Related Parameters Related IO IOEC3 - DI11/DI12 Panel Text InpSw WrongPos Description Input switch has a wrong position (Valid for isolator and breaker). Not correct position feedback

signals while the drive state was RDYON or higher. If the closed and open ackn.-signals are active at the same time, the fault is also generated (in any state).

Causes - Wrong parameter setting - Position indicator defective - Loose or disconnected wire(s) Rectification 1 Check input switch position (Isolator / Breaker) 2 Check input switch indicator devices 3 Check

parameter settings 4 Check wiring and connections FaultClass INU FC1 FaultClass ARU Fault Word 09.16: FAULT WORD 8 FC1 Bit b00 Related Parameters Related IO IOEC3 - DI11/DI12 Panel Text IntTrAirTempHigh Description Air temperature isnside the integrated transformer cubicle too high. Fault level reached Causes - Faulty temperature sensor - Wrong wiring - Wrong parameter settings Rectification 1) Check temperature sensor 2) Check wiring 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 52.02: ACU FAULT WORD 2 FC1 Bit b00 Related Parameters Related IO


Panel Text IOEC Module 1 Description IOEC module 1 is faulty Causes - Pending HW fault on IOEC1 - Wrong node address setting - Wrong wiring (supply voltage) Rectification 1) Check IOEC 2) Check node address 3) Check wiring (supply voltage) FaultClass INU FaultClass ARU Fault Word 09.13: FAULT WORD 5 FC1 Bit b00 Related Parameters Related IO Panel Text IOEC Module 2 Description IOEC module 2 is faulty Causes - Pending HW fault on IOEC2 - Wrong node address setting - Wrong wiring (supply voltage) Rectification 1) Check IOEC 2) Check node address 3) Check wiring (supply voltage) FaultClass INU FaultClass ARU Fault Word 09.13: FAULT WORD 5 FC1 Bit b01 Related Parameters Related IO Panel Text IOEC Module 3 Description IOEC module 3 is faulty Causes - Pending HW fault on IOEC3 - Wrong node address setting - Wrong wiring (supply voltage) -

Wrong parameter settings Rectification 1) Check IOEC 2) Check node address 3) Check wiring (supply voltage) 4) Check parameter

settings FaultClass INU FaultClass ARU Fault Word 09.13: FAULT WORD 5 FC1 Bit b02 Related Parameters Related IO Panel Text IOEC Module 4 Description IOEC module 4 is faulty Causes - Pending HW fault on IOEC4 - Wrong node address setting - Wrong wiring (supply voltage) -

Wrong parameter settings Rectification 1) Check IOEC 2) Check node address 3) Check wiring (supply voltage) 4) Check parameter

settings FaultClass INU FaultClass ARU Fault Word 09.13: FAULT WORD 5 FC1 Bit b03 Related Parameters Related IO Panel Text IOEC Modules Description Sum fault of IOEC modules Causes One of the IOECs has a pending fault Rectification Check for other faults FaultClass INU FaultClass ARU Fault Word 09.13: FAULT WORD 5 FC1 Bit b05 Related Parameters Related IO Panel Text IOEC1-DO6 ContGlued Description Digital output relay contact of MCB trip command is glued (IOEC1 - DO6) Causes - Contact glued because of too high switching current - One of the MCB interposing relay coil is

glued - Wrong wiring Rectification 1) Check DO6 on IOEC1 2) Check interposing relays 3) Check wiring FaultClass INU FaultClass ARU Fault Word 09.19: FAULT WORD 1 FC1D Bit b01 Related Parameters Related IO IOEC1 - DI13/DO6



Panel Text LimitSupervision Description Actual or reference value of one or more monitoring functions is below or above the limit value. Causes - The value which is monitored is below or above the limit value set by parameter - Wrong

parameter settings Rectification 1 Check the limit word 08.06 “LIMIT WORD 2” to find out which actual or reference signal is on

the limit 2 Check the limit value of the monitored signal 3 Check parameters settings FaultClass INU FC1 FaultClass ARU Fault Word 09.10: FAULT WORD 2 FC1 Bit b09 Related Parameters Related IO Panel Text LimitSupervision Description Actual or reference value of one or more monitoring functions is below or above the limit value. Causes - The value which is monitored is below or above the limit value set by parameter - Wrong


the limit 2 Check the limit value of the monitored signal 3 Check parameters settings FaultClass INU FC2 FaultClass ARU Fault Word 09.22: FAULT WORD 3 FC2 Bit b07 Related Parameters Related IO Panel Text MCB AvailableSig Description MCB is not available for closing. Causes - MCB is in test position or racked out - MCB tripped by protection device - Wrong parameter

settings - Loose or disconnected wire(s) - IOEC I/O Module faulty Rectification 1 Check if MCB is racked in and no trip command is actice 2 Check parameter settings 3 Check

IOEC - Module FaultClass INU FC1 FaultClass ARU Fault Word 09.09: FAULT WORD 1 FC1 Bit b03 Related Parameters Related IO IOEC2 - DI11 Panel Text MCB CloseControl Description MCB status not closed while close request is active. Causes - Feedback signal missing - Closing timeout to short - Wrong control place selection or other

faulty parameter setting, for example the delay time is set too short for the MCB - Malfunction of MCB. The main circuit breaker malfunction can be caused by different reasons such as: manual control can override the control signals coming from the converter, the MCB has tripped for some reason (e.g. vercurrent) and can not operate before it is reset or there is a fault in the MCB control signals or in the MCB auxiliary power supply. - Wiring in the MCB monitoring circuit may be loose. - MCB close control fault is activated if the converter can not operate the MCB. Note! If the converter control gives order that the MCB must be closing and the feedback "MCB is closed" from MCB is not indicating after a specified time limit, this fault will be activated. - S800 terminal unit broken - S800 I/O Module faulty

Rectification 1 Check the MCB control parameters and make proper settings. Especially pay attention to set the delay times correct. 2 Check the MCB operation according user manual and circuit diagram. If the MCB is tripped read fault buffers before resetting the fault. 3 Check the wiring between the main circuit breaker and the converter. 4 Check IOEC Modules

FaultClass INU FC1 FaultClass ARU Fault Word 09.09: FAULT WORD 1 FC1 Bit b01 Related Parameters Related IO IOEC1 - DO6, IOEC2 -

DI9/DI10/DO5/DO6


Panel Text MCB OpenControl Description MCB status not open while open request is active. Causes - Feedback signal missing - Opening timeout too short - Malfunction of MCB. The main circuit

breaker Malfunction can be caused by different reasons such as: manual control can override The control signals coming from The converter, The MCB has tripped for some reason (e.g. overcurrent) and can not operate before it is reset or there is a Fault in The MCB control signals or in The MCB auxiliary power supply. - MCB open control Fault become active if The converter control is trying to open The MCB, but (after a predefined delay) The Feedback still indicates that The MCB is closed. - Wiring in The MCB monitoring circuit may be loose. - S800 terminal unit broken - S800 I/O Module Faulty

Rectification 1 Check that parameter settings are correct and correspond to the MCB control interface 2 Check MCB functions according to the MCB user’s manual and circuit diagram 3 Check external wiring of MCB feedback signal

FaultClass INU FC1 FaultClass ARU Fault Word 09.09: FAULT WORD 1 FC1 Bit b02 Related Parameters Related IO IOEC1 - DO6, IOEC2 -

DI9/DI10/DO5/DO6 Panel Text MCBNotOn Description MCB is not ON while start is pressed. Causes - Drive not charged - Charging not completely finished - Drive is not in ReadyRun state Rectification Charge the drive and try again to start the drive FaultClass INU FC1 FaultClass ARU Fault Word 09.09: FAULT WORD 1 FC1 Bit b00 Related Parameters Related IO Panel Text ModulateDischarge Description Discharging of the DC link by IGBT modulation failed. Causes - Faulty discharging circuit - Wrong parameter settings Rectification 1 Check voltage measurement 2 Check for other related fault messages in all COUs FaultClass INU FC1 FaultClass ARU FC1 Fault Word 09.10: FAULT WORD 2 FC1 Bit b04 Related Parameters Related IO Panel Text MotBearingDETemp Description Motor bearing over temperature on driven end (DE) detected. Causes - Bearing temperature too high, exceeds trip level - Ambient temperature too high - Bearing

cooling (oil) faulty - Wiring in protection circuit faulty - Parameter for trip limit is set wrong - IOEC Module faulty - Wiring in the protection circuit loose - Shielding of control cables not properly grounded

Rectification 1 Verify that the parameter settings are correct 2 Check the correct limits for overtemperature trip by consulting the customer and motor manuals 3 Check the motor bearing system Follow standard procedure. See 13.3 Standard Procedure for Troubleshooting

FaultClass INU FC2LP FaultClass ARU Fault Word 09.29: FAULT WORD 1 FC2LP Bit b13 Related Parameters Related IO



Panel Text MotBearingNDETemp Description Motor bearing over temperature on non driven end (NDE) detected. Causes - Bearing temperature too high, exceeds trip level - Ambient temperature too high - Bearing

cooling (oil) faulty - Wiring in protection circuit faulty - Parameter for trip limit is set wrong - IOEC Module faulty - Wiring in the protection circuit loose - Shielding of control cables not properly grounded

Rectification 1 Verify that the parameter settings are correct 2 Check the correct limits for overtemperature trip by consulting the customer and motor manuals 3 Check the motor bearing system

FaultClass INU FC2LP FaultClass ARU Fault Word 09.29: FAULT WORD 1 FC2LP Bit b14 Related Parameters Related IO Panel Text MotorBearing1 Description Motor bearing fault 1. Causes - Motor system faulty - Wrong wiring - Wrong parameter settings Rectification 1) Verify parameter settings 2) Check wiring 3) Check the motor FaultClass INU FaultClass ARU Fault Word 09.24: FAULT WORD 5 FC2 Bit b03 Related Parameters Related IO Panel Text MotorBearing2 Description Motor bearing fault 2. Causes - Motor system faulty - Wrong wiring - Wrong parameter settings Rectification 1) Verify parameter settings 2) Check wiring 3) Check the motor FaultClass INU FaultClass ARU Fault Word 09.24: FAULT WORD 5 FC2 Bit b04 Related Parameters Related IO Panel Text MotorCoolerMon Description Monitoring of motor cooling fan has released Causes - open circuit breaker (thermal protection) - Wrong wiring - Wrong parameter settings Rectification 1) Check thermal protection (circuit breaker) 2) Check wiring 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 52.03: ACU FAULT WORD 1 FC2 Bit b14 Related Parameters Related IO Panel Text MotorHeaterMon Description Monitoring of motor space heater has released Causes - Thermal protection of motor space heater has released - Wrong wiring - Wrong parameter

settings Rectification 1) Check thermal protection 2) Check wiring 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 52.03: ACU FAULT WORD 1 FC2 Bit b13 Related Parameters Related IO Panel Text MotorProtectRelay Description Motor protection relay has released Causes - Motor cooling system faulty - Wrong wiring - Wrong parameter settings Rectification 1) Verify parameter settings 2) Check wiring 3) Check the motor FaultClass INU FaultClass ARU Fault Word 09.24: FAULT WORD 5 FC2 Bit b00 Related Parameters Related IO


Panel Text MotorStallProtec Description Motor stall protection trip. The motor stall function protects the motor from overheating by

monitoring output frequency and current. If motor frequency is below freq. limit and the torque is above torque limit for a preset time the trip is initiated..

Causes - Motor stalled as described above - Wrong parameter setting Rectification 1 Check parameter settings 2 Lower stall frequency temporarily, start drive to see if fault has

disappeared. Be careful not to overheat the motor 3 Check that motor and converter are correctly dimensioned and that they match the required load 4 Verify what kind of loading profile is normally used near the stall area. 5 Check the normal loading of the drive and verify the driven equipment and the motor bearing are functioning properly and sized correctly

FaultClass INU FC2 FaultClass ARU Fault Word 09.20: FAULT WORD 1 FC2 Bit b05 Related Parameters Related IO Panel Text MotorVibration1 Description Motor vibration fault 1. Causes - Motor system faulty - Wrong wiring - Wrong parameter settings Rectification 1) Verify parameter settings 2) Check wiring 3) Check the motor FaultClass INU FaultClass ARU Fault Word 09.24: FAULT WORD 5 FC2 Bit b01 Related Parameters Related IO Panel Text MotorVibration2 Description Motor vibration fault 2 Causes - Motor system faulty - Wrong wiring - Wrong parameter settings Rectification 1) Verify parameter settings 2) Check wiring 3) Check the motor FaultClass INU FaultClass ARU Fault Word 09.24: FAULT WORD 5 FC2 Bit b02 Related Parameters Related IO Panel Text MotorWdgU OTemp Description Motor winding phase U overtemperature detected Causes - Parameter for motor temperature supervision are set incorrectly - Ambient temperature too high

- Motor cooling air is too hot (air cooled motor) or motor cooling water is too hot (water cooled motor) - Wiring wrong - Motor cooling circuit is faulty

Rectification 1) Verify that the parameter settings are correct 2) Check the correct limits for overtemperature trip by consulting the customer and motor manuals 3) Check the motor system

FaultClass INU FaultClass ARU Fault Word 09.29: FAULT WORD 1 FC2LP Bit b00 Related Parameters Related IO Panel Text MotorWdgV OTemp Description Motor winding phase V overtemperature detected Causes - Parameter for motor temperature supervision are set incorrectly - Ambient temperature too high



FaultClass INU FaultClass ARU Fault Word 09.29: FAULT WORD 1 FC2LP Bit b01 Related Parameters Related IO



Panel Text MotorWdgW OTemp Description Motor winding phase W overtemperature detected Causes - Parameter for motor temperature supervision are set incorrectly - Ambient temperature too high



FaultClass INU FaultClass ARU Fault Word 09.29: FAULT WORD 1 FC2LP Bit b02 Related Parameters Related IO Panel Text OutpSw CtrlFlt Description Output switch has not operated on time (Valid for isolator and breaker). Feedback signal not

received within defined time. Causes - Output switch not operating (motor power supply missing) - Wrong parameter setting - Position

indicator defective - Loose or disconnected wire(s) Rectification 1 Check output switch position (Isolator / Breaker) 2 Check output switch indicator devices 3

Check power supply for motor 4 Check parameter settings 5 Check wiring and connections FaultClass INU FC2 FaultClass ARU Fault Word 09.21: FAULT WORD 2 FC2 Bit b13 Related Parameters Related IO IOEC3 - DI13/DI14 Panel Text OutpSw WrongPos Description Output switch has a wrong position (Valid for isolator and breaker). Not correct position feedback

signals while the drive state was RDYRUN or higher. If the closed and open ackn.-signals are active at the same time, the fault is also generated (in any state).

Causes - Wrong parameter setting - Position indicator defective - Loose or disconnected wire(s) Rectification 1 Check output switch position (Isolator / Breaker) 2 Check output switch indicator devices 3

Check parameter settings 4 Check wiring and connections FaultClass INU FC2 FaultClass ARU Fault Word 09.21: FAULT WORD 2 FC2 Bit b14 Related Parameters Related IO IOEC3 - DI13/DI14 Panel Text PanelLost Description Failure in the RS-485 communication between the AMC board and the control panel CDP312 or

to DriveWindow SW (if PC is used). Causes - The control panel connection may have come loose. - Wrong parameter setting Rectification 1 Check that the cable from AMC board via NDPI to the control panel is properly connected 2

Unplug and replug the cable a few times 3 Check the local control device (CDP 312 panel, DriveWindow etc.)

FaultClass INU FC2 FaultClass ARU Fault Word 09.20: FAULT WORD 1 FC2 Bit b09 Related Parameters Related IO AMC34 Panel Text PhCapA1ChargFl Description Phase cap of phase A drive 1 (single unit) is not charging. Causes - The phase module is not receiving the charge enable from control software. - The phase

module is faulty Rectification If only one phase error appears (e.g. PhCapA1ChargFlt): 1) Change phase module if more than

one fault message appears (e.g. PhCapA1ChargFlt, PhCapB1ChargFlt and PhCapC1ChargFlt): 1) Reset the fault and try to restart 2) If fault is still pending, change the phase module



Panel Text PhCapB1ChargFlt Description Phase cap of phase B drive 1 (single unit) is not charging. Causes - The phase module is not receiving the charge enable from control software. - The phase

module is faulty Rectification If only one phase error appears (e.g. PhCapB1ChargFlt): 1) Change phase module if more than


FaultClass INU FC1 FaultClass ARU Fault Word 09.10: FAULT WORD 2 FC1 Bit b13 Related Parameters Related IO Panel Text PhCapC1ChargFlt Description Phase cap of phase C drive 1 (single unit) is not charging. Causes - The phase module is not receiving the charge enable from control software. - The phase

module is faulty Rectification If only one phase error appears (e.g. PhCapC1ChargFlt): 1) Change phase module if more than


FaultClass INU FC1 FaultClass ARU Fault Word 09.10: FAULT WORD 2 FC1 Bit b14 Related Parameters Related IO Panel Text PhCapChargSumFlt Description Phase caps of phase A, B and C are not charging. Causes - SW fault - Any phase module is faulty Rectification 1) Reset the fault and try to restart 2) If fault is still pending, change the phase modules FaultClass INU FC1 FaultClass ARU Fault Word 09.13: FAULT WORD 5 FC1 Bit b14 Related Parameters Related IO Panel Text ProcessStop FC1 Description Process Stop is active (customer function). Causes - Process Stop function is active (as requested) - Wrong parameter settings - Loose or

disconnected wire(s) - IOEC I/O Moule faulty Rectification 1 Check parameter settings 2 Check programmed "Process Stop" function (limit value, monitored

signal) 3 Check IOEC - Module FaultClass INU FC1 FaultClass ARU Fault Word 09.11: FAULT WORD 3 FC1 Bit b07 Related Parameters Related IO Panel Text ProcessStop FC2 Description Process Stop is active (customer function). Causes - Process Stop function is active (as requested) - Wrong parameter settings - Loose or

disconnected wire(s) - IOEC I/O Module faulty Rectification 1 Check parameter settings 2 Check programmed "Process Stop" function (limit value, monitored

signal) 3 Check IOEC - Module FaultClass INU FC2 FaultClass ARU Fault Word 09.22: FAULT WORD 3 FC2 Bit b00 Related Parameters Related IO



Panel Text TCSM NotReached Description TCSM (Torque Controller State Machine) does not reach expected state. Causes - TCSM (Torque Controller State Machine) has not following feedback signals after given

commands: - TCCWOrderON => TCSW ReadyRun; within the delay time given by parameter 131.17 MODULATOR CTRL DELAY TIME - TCCWOrderRUN => TCSW ReadyRef; within the delay time given by parameter 131.17 MODULATOR CTRL DELAY TIME.

Rectification 1 Check for other related fault messages 2 Switch aux power OFF and back ON and restart the drive

FaultClass INU FC2 FaultClass ARU Fault Word 09.20: FAULT WORD 1 FC2 Bit b03 Related Parameters Related IO Panel Text TimeoutAuxOnSeq Description AUX ON (Auxilliarys On) sequence timeout. The maximum duration of the step has been

exceeded and the step has not been terminated. Main State Machine interprete this as a time-out situation.

Causes MainStateMachine (MSM) Timeout at: - Sequence 3 Step 1: DC Ground Switch - Sequence 3 Step 2: Charging - Sequence 3 Step 4: LV charging relay - Sequence 3 Step 5: HV charging relay - Sequence 3 Step 6: Closing MCB & CBs

Rectification 1 Check for other related faults 2 Check parameter settings FaultClass INU FC1 FaultClass ARU Fault Word 09.11: FAULT WORD 3 FC1 Bit b03 Related Parameters Related IO Panel Text TimeoutInitSeq Description Timeout in sequence of main state machine (SEQUENCE HANDLER: Sequence 1 Step 1). Causes - Wrong parameter settings Rectification 1 Check for other related faults 2 Compare all parameters with Parameter Setting List 3 Reset

aux power and restart the drive FaultClass INU FC2HP FaultClass ARU Fault Word 09.25: FAULT WORD 1 FC2HP Bit b00 Related Parameters Related IO Panel Text TimeoutOff1Seq Description OFF1 (STOP) sequence timeout. The maximum duration of the step has been exceeded and the

step has not been terminated. Main State Machine interprete this as a time-out situation. Causes MainStateMachine (MSM) Timeout at: - Sequence 9 Step 1: TC ON and Running. - Sequence 9

Step 2: Opening the MCB / CBs - Sequence 9 Step 3: Wait for rotor - Sequence 9 Step 4: Discharging by Modulation (ARU) - Sequence 9 Step 5: Test Sequence

Rectification 1 Check for other related faults 2 Check parameter settings FaultClass INU FC1 FaultClass ARU Fault Word 09.11: FAULT WORD 3 FC1 Bit b00 Related Parameters Related IO Panel Text TimeoutOff2Seq Description OFF2 (Emergency OFF) sequence timeout. The maximum duration of the step has been


Causes MainStateMachine (MSM) Timeout at: - Sequence 12 Step 1:Reset TC ON. - Sequence 12 Step 2: Opening the MCB / CBs - Sequence 12 Step 4: Discharging by Modulation (ARU)

Rectification 1 Check for other related faults 2 Check parameter settings FaultClass INU FC1 FaultClass ARU Fault Word 09.11: FAULT WORD 3 FC1 Bit b01 Related Parameters Related IO


Panel Text TimeoutOff3Seq Description OFF3 (Emergency STOP) sequence timeout. The maximum duration of the step has been


Causes MainStateMachine (MSM) timeout at: - Sequence 10 Step 1:Reset TC RUN. - Sequence 11 Step 1:Reset TC RUN.: - Sequence 11 Step 2:STOP all INUs. - Sequence 11 Step 3:Opening the MCB / CBs - Sequence 11 Step 5: Discharging by Modulation (ARU)

Rectification 1 Check for other related faults 2 Check parameter settings FaultClass INU FC1 FaultClass ARU Fault Word 09.11: FAULT WORD 3 FC1 Bit b02 Related Parameters Related IO Panel Text TimeoutRdyRefSeq Description RdyRef sequence timeout (SEQUENCE HANDLER: Sequence 5 Step 1, 2 or 3). Causes - Wrong parameter settings Rectification 1 Check for other related faults 2 Compare all parameters with Parameter Setting List 3 Reset

aux power and restart the drive FaultClass INU FC2HP FaultClass ARU Fault Word 09.25: FAULT WORD 1 FC2HP Bit b04 Related Parameters Related IO Panel Text TimeoutRdyRunSeq Description RdyRun sequence timeout (SEQUENCE HANDLER: Sequence 4 Step 1 or 2). Causes - Wrong parameter settings Rectification 1 Check for other related faults 2 Compare all parameters with Parameter Setting List 3 Reset

aux power and restart the drive FaultClass INU FC2HP FaultClass ARU Fault Word 09.25: FAULT WORD 1 FC2HP Bit b03 Related Parameters Related IO Panel Text TimeoutStop1Seq Description Stop1 sequence timeout (SEQUENCE HANDLER: Sequence 6 Step 1). Causes - Wrong parameter settings Rectification 1 Check for other related faults 2 Compare all parameters with Parameter Setting List 3 Reset

aux power and restart the drive FaultClass INU FC2HP FaultClass ARU Fault Word 09.25: FAULT WORD 1 FC2HP Bit b05 Related Parameters Related IO Panel Text TimeoutStop2Seq Description Stop2 sequence timeout (SEQUENCE HANDLER: Sequence 7 Step 1). Causes - Wrong parameter settings Rectification 1 Check for other related faults 2 Compare all parameters with Parameter Setting List 3 Reset

aux power and restart the drive FaultClass INU FC2HP FaultClass ARU Fault Word 09.25: FAULT WORD 1 FC2HP Bit b06 Related Parameters Related IO



Panel Text TimeoutTestSeq Description Test sequence timeout (SEQUENCE HANDLER: Sequence 2 Step 1). Causes - Wrong parameter settings Rectification 1 Check for other related faults 2 Compare all parameters with Parameter Setting List 3 Reset

aux power and restart the drive FaultClass INU FC2HP FaultClass ARU Fault Word 09.25: FAULT WORD 1 FC2HP Bit b01 Related Parameters Related IO Panel Text TOutTestFaildSeq Description Test sequence timeout (SEQUENCE HANDLER: Sequence 17 Step 1). Causes - Wrong parameter settings Rectification 1 Check for other related faults 2 Compare all parameters with Parameter Setting List 3 Reset

aux power and restart the drive FaultClass INU FC2HP FaultClass ARU Fault Word 09.25: FAULT WORD 1 FC2HP Bit b07 Related Parameters Related IO Panel Text TrafoCoolFan Flt Description Thermal protection relay of transformer cooling fans released. Causes - Transformer cooling fan motor overloaded - Loose or disconnected wire(s) - settings of

overload protection switch may be wrong. - Transformer cooling fan motor may be damaged or blocked. - overload protection of the transformer cooling fan motor may have tripped - motor protection switch has a normally closed auxiliary contact, may be Wrong connected.

Rectification 1 Check the settings of overload protection switch according to the fan(s) current. 2 Check fans and fans bearings for possible reasons 3 Check parameter setting 4 Check wiring 5 Check IOEC digital input module

FaultClass INU FC1 FaultClass ARU Fault Word 09.16: FAULT WORD 8 FC1 Bit b05 Related Parameters Related IO Panel Text TrafoOilTemp Description Transformer oil temperature too high Causes - Transformer oil temperature is too high - Wrong wiring - Wrong parameter settings Rectification 1) Check external oil temperature measurement 2) Check wiring 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 09.14: FAULT WORD 6 FC1 Bit b01 Related Parameters Related IO Panel Text TransfCoolerMon Description Monitoring of transformer cooling fan has released Causes - open circuit breaker (thermal protection) - Wrong wiring - Wrong parameter settings Rectification 1) Check thermal protection (circuit breaker) 2) Check wiring 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 52.02: ACU FAULT WORD 2 FC1 Bit b14 Related Parameters Related IO


Panel Text TransfHeaterMon Description Monitoring of transformer space heater has released Causes - Thermal protection of transformer space heater has released - Wrong wiring - Wrong parameter

settings Rectification 1) Check thermal protection 2) Check wiring 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 52.02: ACU FAULT WORD 2 FC1 Bit b13 Related Parameters Related IO Panel Text TransfProtRelay Description Transformer protection has released Causes - Fault in transformer protection circuit - Missing jumper Rectification 1) Check transformer protection circuit 2) Check jumper FaultClass INU FaultClass ARU Fault Word 09.09: FAULT WORD 1 FC1 Bit b13 Related Parameters Related IO IOEC1 - DI14 Panel Text TransfWdgU OTemp Description Main transformer over temperature in phase U detected Causes - Transformer load too high - Ambient temperature too high - Transformer cooling fault - Wiring in

protection circuit faulty - Wrong wiring - Wrong parameter settings Rectification 1) Check transformer load and ambient temperature and compare with rated figures. Refer to

transformer manual 2) Check installation conditions are satisfactory 3) Check cooling equipment 4) Check wiring 5) Check parameter settings

FaultClass INU FaultClass ARU Fault Word 09.15: FAULT WORD 7 FC1 Bit b02 Related Parameters Related IO Panel Text TransfWdgV OTemp Description Main transformer over temperature in phase V detected Causes - Transformer load too high - Ambient temperature too high - Transformer cooling fault - Wiring in



FaultClass INU FaultClass ARU Fault Word 09.15: FAULT WORD 7 FC1 Bit b03 Related Parameters Related IO Panel Text TransfWdgW OTemp Description Main transformer over temperature in phase W detected Causes - Transformer load too high - Ambient temperature too high - Transformer cooling fault - Wiring in



FaultClass INU FaultClass ARU Fault Word 09.15: FAULT WORD 7 FC1 Bit b04 Related Parameters Related IO



Panel Text TripLoopInterrupted Description Tripping loop is interrupted (internal / external emergency off or transformer protection relay) Causes - emergency off (internal or external) pending - missing jumper - missing reset Rectification 1) Check status of emergency off's 2) Check jumper 3) Press reset FaultClass INU FaultClass ARU Fault Word 09.09: FAULT WORD 1 FC1 Bit b12 Related Parameters Related IO IOEC1 - DI12 Panel Text Unbalanced NP Description Upper/Lower DC voltage not in balance while charging (unsymmetrical charging of DC link). The

neutral point voltage actual value (parameter 2.07 NP VOLTAGE) is compared against this parameter value during the charging sequence and if the limit is reached the fault will occur.

Causes - Charging unit faulty - Power stage faulty (IGBT's) - Wrong parameter settings Rectification 1) Check for other related faults 2) Check main circuit 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 09.10: FAULT WORD 2 FC1 Bit b06 Related Parameters Related IO


Alarms

Panel Text 3phPowerSwitch Description 3ph power change over occured. Causes - loose of one of the 3ph feeding auxiliary power - open circuit breaker - faulty phase monitoring

system - wrong wiring - wrong parameter settings Rectification 1) check auxiliary supply voltages 2) Check circuit breaker 3) Check wiring 4) Check parameter

settings FaultClass INU FaultClass ARU Fault Word 09.62: ALARM WORD 3 Bit b00 Related Parameters Related IO Panel Text ACDA Alarm Description ACDA requesting Alarm, received via CH4 ; DataSet 100 Value 3 - Bit03 Causes - Alarm class 2 in ACDA (auxiliary control device adapter) is active - Wrong parameter settings

(e.g. Node Addr.) - DDCS fiber optic cables are not properly connected or have Wrong polarity - Aux. Control Device Adapater (ACDA) board defective

Rectification 1 Check reason for Alarm in Aux. Control Device Adapater (ACDA) 2 Check that parameter settings correspond to the external communication interface 3 Check power supply of external communication interface 4 Check connections and polarity of fiber optics 5 Check Aux. Control Device Adapater (ACDA)

FaultClass INU FaultClass ARU Fault Word 09.62: ALARM WORD 3 Bit b14 Related Parameters Related IO AMC34 - CH4 Panel Text ACDA Aux ON Ackn Description ACDA – Auxiliary ON Acknowledge signal, received via CH4, is missing (AUX ON SEQ3 & 2 min

timeout); DataSet 100 Value 2 - Bit02 Causes - ACAD (auxiliary control device adapter) is not ready to switch on the auxiliarys - Wrong


Rectification 1 Check Aux. Control Device Adapater (ACDA) auxiliarys 2 Check that parameter settings correspond to the external communication interface 3 Check power supply of external communication interface 4 Check connections and polarity of fiber optics 5 Check Aux. Control Device Adapater (ACDA)

FaultClass INU FaultClass ARU Fault Word 09.62: ALARM WORD 3 Bit b13 Related Parameters Related IO AMC34 - CH4 Panel Text ACDA Interlock1 Description ACDA – Interlocked 1 signal, received via CH4, is set; DataSet 100 Value 2 - Bit04 Causes - ACAD (auxiliary control device adapter) is not ready to switch on - control is interlocked by

External missing signals - Wrong parameter settings (e.g. Node Addr.) - DDCS fiber optic cables are not properly connected or have Wrong polarity - Aux. control device Adapater (ACDA) board defective

Rectification 1 Check Aux. Control Device Adapater (ACDA) auxiliarys / interlock signals 2 Check that parameter settings correspond to the external communication interface 3 Check power supply of external communication interface 4 Check connections and polarity of fiber optics 5 Check Aux. Control Device Adapater (ACDA)

FaultClass INU FaultClass ARU Fault Word 09.64: ALARM WORD 5 Bit b03 Related Parameters Related IO AMC34 - CH4



Panel Text ACDA Interlock2 Description ACDA – Interlocked 2 signal, received via CH4, is set; DataSet 100 Value 2 - Bit05 Causes - ACDA (auxiliary control device adapter) is not ready to switch on - control is interlocked by

external missing signals - Wrong parameter settings (e.g. Node Addr.) - DDCS fiber optic cables are not properly connected or have Wrong polarity - Aux. Control Device Adapater (ACDA) board defective

Rectification 1 Check Aux. Control Device Adapater (ACDA) auxiliarys / interlock signals 2 Check that parameter settings correspond to the external communication interface 3 Check power supply of external communication interface 4 Check connections and polarity of fiber optics 5 Check Aux. Control Device Adapater (ACDA)

FaultClass INU FaultClass ARU Fault Word 09.64: ALARM WORD 5 Bit b04 Related Parameters Related IO AMC34 - CH4 Panel Text ARC Detected Description Process Stop function (used as ARC Detection) is active (as requested) NOTE! Process Stop

function is used - fault & alarm text is indicated as "ARC Detected FC1" ARC is set by parameter 210.20.

Causes - Process Stop function (used as ARC detection) is active (as requested) - Wrong parameter settings - Loose or disconnected wire(s) - IOEC I/O Moule faulty

Rectification 1 Check parameter settings 2 Check programmed "Process Stop" function (limit value, monitored signal) 3 Check IOEC - Module

FaultClass INU FaultClass ARU Fault Word 09.63: ALARM WORD 4 Bit b13 Related Parameters Related IO Panel Text ARU Alarm Description ARU alarm detected. Causes An alarm in ARU is active Rectification Check alarm signal in ARU FaultClass INU FaultClass ARU Fault Word 09.64: ALARM WORD 5 Bit b02 Related Parameters Related IO ARU Panel Text ARU Not Running Description INU in ReadyRun state, but ARU supply not running. Causes - Wrong parameter settings - ARU in LOCAL - mode but should be in REMOTE - mode - ARU

block modulation is selected (feedback missing) Rectification 1 Check parameter settings 2 Check signals from PLC if block modulation by COMM.Module is

selected 3 Check ARU panel FaultClass INU FaultClass ARU Fault Word 09.64: ALARM WORD 5 Bit b01 Related Parameters Related IO ARU Panel Text AuxPowerUnderVolt Description An auxiliary supply power loss is detected through digital input Causes - External undervoltage monitoring device active (digital input) - Wrong parameter settings -

Loose or disconnected wire(s) - IOEC I/O Moule faulty - IOEC terminal unit broken Rectification 1 Check undervoltage monitoring device 2 Check wiring 3 Check parameters settings 4 Check

IOEC modules FaultClass INU FaultClass ARU Fault Word 09.60: ALARM WORD 1 Bit b01 Related Parameters Related IO IOEC1 - DI7


Panel Text AuxRideThrough Description Aux. power ride through requested. Causes - External undervoltage monitoring device active (digital input) - Internal cooling water pressure

to low - Wrong parameter settings - Loose or disconnected wire(s) - IOEC I/O Moule faulty Rectification 1 Check undervoltage monitoring device 2 Check other faults (water cooling system) 3 Check

wiring 4 Check parameters settings 5 Check IOEC modules FaultClass INU FaultClass ARU Fault Word 09.60: ALARM WORD 1 Bit b00 Related Parameters Related IO IOEC1 - DI8 Panel Text BufferModule1Alm Description Buffer module 1 has a pending alarm Causes - faulty buffer module - wrong wiring - wrong parameter settings Rectification 1) Check buffer module 2) check wiring 3) check parameter settings FaultClass INU FaultClass ARU Fault Word 09.60: ALARM WORD 1 Bit b10 Related Parameters Related IO Panel Text BufferModule2Alm Description Buffer module 2 has a pending alarm Causes - faulty buffer module - wrong wiring - wrong parameter settings Rectification 1) Check buffer module 2) Check wiring 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 09.60: ALARM WORD 1 Bit b11 Related Parameters Related IO Panel Text CC1 AirFiltAlm Description Cooling circuit 1 (converter compartment) air filter alarm. Causes - Air filter mate in converter compartment is dirty - Wrong wiring - Wrong parameter settings Rectification 1) Check air filter mates 2) Check wiring (also mechanical wiring of pipes) 3) Check parameter

settings FaultClass INU FaultClass ARU Fault Word 52.04: ACU ALARM WORD 1 Bit b00 Related Parameters Related IO IOEC1 - DI11 Panel Text CC2 AirFiltAlm Description Cooling circuit 2 (DTL, in case of ACS 2000 6kV configuration, or integrated transformer

compartment) air filter alarm Causes - Air filter mate is dirty - Wrong wiring - Wrong parameter settings Rectification 1) Check air filter mate in DTL or integrated transformer compartment 2) Check wiring, also

mechanical pipes installation 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 52.04: ACU ALARM WORD 1 Bit b01 Related Parameters Related IO IOEC3 - DI04



Panel Text CH0 CommLoss Description AMC DDCS CH0 communication lost Causes - Communication time-out setting too small - Wrong parameter settings (e.g. Node Addr.) -

DDCS fiber optic cables are not properly connected or have wrong polarity - AMC board defective - Fieldbus Module defective


FaultClass INU FaultClass ARU Fault Word 09.60: ALARM WORD 1 Bit b06 Related Parameters Related IO AMC34 - CH0 Panel Text CH0 NoWD Pulse Description No watch-dog pulse from AMC - DDCS CH0 (e.g. AC80, AC800, AMC – Aux. controller) Causes - Watch-dog pulse to short - Wrong parameter settings (e.g. Node Addr.) - DDCS fiber optic

cables are not properly connected or have wrong polarity - AMC board defective - External control device not working or SW not done


FaultClass INU FaultClass ARU Fault Word 09.61: ALARM WORD 2 Bit b14 Related Parameters Related IO AMC34 - CH0 Panel Text CH2 CommLoss Description AMC DDCS CH2 communication lost Causes - Communication time-out setting too small - Wrong parameter settings (e.g. Node Addr.) -



FaultClass INU FaultClass ARU Fault Word 09.60: ALARM WORD 1 Bit b07 Related Parameters Related IO AMC34 - CH2 Panel Text CH4 CommLoss Description AMC DDCS CH4 communication lost Causes - Communication time-out setting too small - Wrong parameter settings (e.g. Node Addr.) -



FaultClass INU FaultClass ARU Fault Word 09.60: ALARM WORD 1 Bit b08 Related Parameters Related IO AMC34 - CH4


Panel Text CH4 NoWD Pulse Description No watch-dog pulse from AMC - DDCS CH4 (e.g. AC80, AC800, AMC – Aux. controller) DataSet

100 Value 2 Bit03 Causes - Watch-dog pulse to short - Wrong parameter settings (e.g. Node Addr.) - DDCS fiber optic

cables are not properly connected or have wrong polarity - AMC board defective - External control device not working or SW not done


FaultClass INU FaultClass ARU Fault Word 09.61: ALARM WORD 2 Bit b02 Related Parameters Related IO AMC34 - CH4 Panel Text ConvAirTempHigh Description Air temperature inside the converter (COU) too high. Alarm level reached Causes - Faulty temperature sensor - Wrong wiring - Wrong parameter settings Rectification 1) Check temperature sensor 2) Check wiring 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 52.05: ACU ALARM WORD 2 Bit b00 Related Parameters Related IO IOEC1 - AI2 Panel Text ConvHeaterMon Description Monitoring of converter space heater has released Causes - Thermal protection of converter space heater has released - Wrong parameter settings Rectification 1) Check thermal protection inside the control unit (COU) 2) Check parameter settings FaultClass INU FaultClass ARU Fault Word 52.04: ACU ALARM WORD 1 Bit b10 Related Parameters Related IO IOEC3 - DI10 Panel Text CoolCircuit1Alm Description Cooling circuit 1 (converter compartment) alarm, if fan switched over to another group because

of a fault in cooling circuit 1 Causes - Wrong settings of pressure drop monitoring - A cooling fan is faulty - Wrong parameter settings Rectification 1) Check settings of pressure drop measurements 2) Check cooling fan (also thermal protection)

3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 52.04: ACU ALARM WORD 1 Bit b07 Related Parameters Related IO Panel Text CoolCircuit2Alm Description Cooling circuit 2 (DTL, in case of an ACS 2000 6kV configuration, or integrated transformer

compartment) alarm, if a fan switched over to another cooling group because of a fault in cooling circuit 2.

Causes - Wrong settings of pressure drop monitoring - A cooling fan is faulty - Wrong parameter settings Rectification 1) Check settings of pressure drop measurements 2) Check cooling fan (also thermal protection)

3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 52.04: ACU ALARM WORD 1 Bit b08 Related Parameters Related IO



Panel Text CoolFanGrp1Alm Description Thermal protection relay of cooling fan group 1 alarm Causes - open circuit breaker - wrong wiring - fan is faulty Rectification 1) Check thermal protection switch inside the control unit (COU) 2) Check wiring 3) Check

cooling fan group 1 FaultClass INU FaultClass ARU Fault Word 52.04: ACU ALARM WORD 1 Bit b03 Related Parameters Related IO IOEC1 - DI9 Panel Text CoolFanGrp2Alm Description Thermal protection of cooling fan group 2 alarm Causes - open circuit breaker - wrong wiring - fan is faulty Rectification 1) Check thermal protection switch inside the control unit (COU) 2) Check wiring 3) Check

cooling fan group 2 FaultClass INU FaultClass ARU Fault Word 52.04: ACU ALARM WORD 1 Bit b04 Related Parameters Related IO IOEC3 - DI1 Panel Text CoolFanGrp3Alm Description Thermal protection of cooling group 3 alarm Causes - open circuit breaker - wrong wiring - fan is faulty Rectification 1) Check thermal protection inside the control unit (COU) 2) Check wiring 3) Check cooling fan

group 3 FaultClass INU FaultClass ARU Fault Word 52.04: ACU ALARM WORD 1 Bit b05 Related Parameters Related IO IOEC3 - DI2 Panel Text CtrlBakSupplyAlm Description Control backup supply circuit is faulty Causes - open circuit breaker - wrong wiring - wrong parameter settings Rectification 1) Check circuit breaker 2) Check power supply 3) Check wiring 4) CHeck parameter settings FaultClass INU FaultClass ARU Fault Word 09.62: ALARM WORD 3 Bit b05 Related Parameters Related IO Panel Text CtrlSuppliesAlm Description Control supplies circuit is faulty Causes - open circuit breakers - wrong wiring - wrong parameter settings Rectification 1) Check circuit breakers 2) Check wiring 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 09.62: ALARM WORD 3 Bit b02 Related Parameters Related IO Panel Text CtrlSupply1Alm Description Control supply 1 circuit is faulty Causes - open circuit breaker - wrong wirirng - wrong parameter settings Rectification 1) Check circuit breakers 2) Check power supply 3) Check wiring 4) Check parameter settings FaultClass INU FaultClass ARU Fault Word 09.62: ALARM WORD 3 Bit b03 Related Parameters Related IO


Panel Text CtrlSupply2Alm Description Control supply 2 circuit is faulty Causes - open circuit breaker - wrong wiring - wrong parameter settings Rectification 1) Check circuit breakers 2) Check power supply 3) Check wiring 4) Check parameter settings FaultClass INU FaultClass ARU Fault Word 09.62: ALARM WORD 3 Bit b04 Related Parameters Related IO Panel Text CustSupSig1 Description Customer supervision function 1 is active. Causes - The customer supervision function 1 is active (as requested) - Wrong parameter settings Rectification 1 Check "monitored" signal (as requesetd) 2 Check connection in supervision function 3 Check

parameters settings FaultClass INU FaultClass ARU Fault Word 09.64: ALARM WORD 5 Bit b08 Related Parameters Related IO Panel Text CustSupSig2 Description Customer supervision function 2 is active. Causes - The customer supervision function 2 is active (as requested) - Wrong parameter settings Rectification 1 Check "monitored" signal (as requesetd) 2 Check connection in supervision function 3 Check

parameters settings FaultClass INU FaultClass ARU Fault Word 09.64: ALARM WORD 5 Bit b09 Related Parameters Related IO Panel Text CustSupSig5 Description Customer supervision function 5 is active. Causes - The customer supervision function 5 is active (as requested) - Wrong parameter settings Rectification 1 Check "monitored" signal (as requesetd) 2 Check connection in supervision function 3 Check

parameters settings FaultClass INU FaultClass ARU Fault Word 09.64: ALARM WORD 5 Bit b06 Related Parameters Related IO Panel Text ExternalMotor Description External motor protection alarm Causes - A pending fault in the external motor protection monitoring circuit - wrong wiring - wrong

parameter settings Rectification 1) Check for pending (HW related) faults 2) Check wiring 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 09.70: ALARM WORD 11 Bit b05 Related Parameters Related IO Panel Text ExternalTrafo Description External transformer protection alarm Causes - A fault in transformer protection circuit is active - wrong wiring - wrong parameter settings Rectification 1) Check for pending faults (HW related) in transformer moitoring circuit 2) Check wiring 3)

Check parameter settings FaultClass INU FaultClass ARU Fault Word 09.70: ALARM WORD 11 Bit b08 Related Parameters Related IO



Panel Text ExtMCBProt1Alm Description External MCB protection alarm function 1 is active. Causes - External MCB monitoring device tripped - Wiring in protection circuit faulty - Parameter settings

wrong - IOEC module faulty Rectification 1 Check external MCB protection device 2 Check that all trip limit settings are correctly set in

external motor protection device 3 Check wiring between external protection device and ACS 2000 4 Check wiring to protection device inputs 5 Check parameter settings 6 Check S800 module

FaultClass INU FaultClass ARU Fault Word 09.72: ALARM WORD 13 Bit b07 Related Parameters Related IO Panel Text ExtMCBProt2Alm Description External MCB protection alarm function 2 is active. Causes - External MCB monitoring device tripped - Wiring in protection circuit faulty - Parameter settings

wrong - IOEC module faulty Rectification 1 Check external MCB protection device 2 Check that all trip limit settings are correctly set in


FaultClass INU FaultClass ARU Fault Word 09.72: ALARM WORD 13 Bit b11 Related Parameters Related IO Panel Text ExtMotorProt1Alm Description External motor protection alarm function 1 is active. Causes - External motor monitoring device tripped - Wiring in protection circuit faulty - Parameter settings

wrong - IOEC module faulty Rectification 1 Check external motor protection device 2 Check that all trip limit settings are correctly set in


FaultClass INU FaultClass ARU Fault Word 09.72: ALARM WORD 13 Bit b08 Related Parameters Related IO Panel Text ExtMotorProt2Alm Description External motor protection alarm function 2 is active. Causes - External motor monitoring device tripped - Wiring in protection circuit faulty - Parameter settings

wrong - IOEC module faulty Rectification 1 Check external motor protection device 2 Check that all trip limit settings are correctly set in


FaultClass INU FaultClass ARU Fault Word 09.72: ALARM WORD 13 Bit b12 Related Parameters Related IO


Panel Text ExtRef1Lost Description External reference 1 signal loss. Causes - Analoge input signal is missing or signal level has dropped below the present minimum limit -


Rectification 1 Check parameter settings. 2 Check the auxiliary power supply of the external control device (if installed). 3 Measure the input signal with a multimeter to verify the correct signal level. If there is no signal at all, check the wiring between the external control device and the analog input 4 Check IOEC - Module

FaultClass INU FaultClass ARU Fault Word 09.64: ALARM WORD 5 Bit b12 Related Parameters Related IO IOEC2 - AI1 Panel Text ExtRef2Lost Description External reference 2 signal loss. Causes - Analoge input signal is missing or signal level has dropped below the present minimum limit -


Rectification 1 Check parameter settings. 2 Check the auxiliary power supply of the external control device (if installed). 3 Measure the input signal with a multimeter to verify the correct signal level. If there is no signal at all, check the wiring between the external control device and the analog input 4 Check IOEC - Module

FaultClass INU FaultClass ARU Fault Word 09.64: ALARM WORD 5 Bit b13 Related Parameters Related IO IOEC1 - AI1 Panel Text ExtTrafoProt1Alm Description External transformer protection alarm function 1 is active. Causes - External transformer monitoring device tripped - Wiring in protection circuit faulty - Parameter

settings wrong - IOEC module faulty Rectification 1 Check external transformer protection device 2 Check that all trip limit settings are correctly set


FaultClass INU FaultClass ARU Fault Word 09.72: ALARM WORD 13 Bit b09 Related Parameters Related IO Panel Text ExtTrafoProt2Alm Description External transformer protection alarm function 2 is active. Causes - External transformer monitoring device tripped - Wiring in protection circuit faulty - Parameter

settings wrong - IOEC module faulty Rectification 1 Check external transformer protection device 2 Check that all trip limit settings are correctly set


FaultClass INU FaultClass ARU Fault Word 09.72: ALARM WORD 13 Bit b14 Related Parameters Related IO Panel Text HV DC ChrgRelay Description High voltage side "DC link charging relay" - fault monitoring. The DC high voltage side is not

charging - the relay is maybe broken. Causes - HV charging relay broken - Wrong parameter settings - Loose or disconnected wire(s) Rectification 1 Check charging unit 2 Check HV - Relay 3 Check IOEC modules FaultClass INU FaultClass ARU Fault Word 09.64: ALARM WORD 5 Bit b00 Related Parameters Related IO



Panel Text INU OperPrevented Description INU Operation Prevention is active. Causes - INU Operation Prevention activated during drive running - Wrong parameter settings - IOEC

Module defect Rectification 1 Check that parameter setting correspond to the needs (if Drive should not stop during running

==> set parameter 32.11 to NO REACTION) 2 Check IOEC modul FaultClass INU FaultClass ARU Fault Word 09.61: ALARM WORD 2 Bit b03 Related Parameters Related IO Panel Text InvalidParSetGr17 Description Invalid parameter settings for parameter group 17 (DC link charging / MCB closing level

parameters) Causes Parameter 17.01 MCBClosingLevel must be at least 100 V lower than parameter 17.02

DCChargingLevel Rectification 1 Check parameters 17.01 and 17.02 FaultClass INU FaultClass ARU Fault Word 09.61: ALARM WORD 2 Bit b01 Related Parameters Related IO Panel Text IOEC Module 1 Description IOEC module 1 has a pending alarm Causes - wrong node adress - no 24V power - faulty module Rectification 1) Check node address of module 2) Check 24V supply voltage 3) Substitute module FaultClass INU FaultClass ARU Fault Word 09.63: ALARM WORD 4 Bit b02 Related Parameters Related IO Panel Text IOEC Module 2 Description IOEC module 2 has a pending alarm Causes - wrong node adress - no 24V power - faulty module Rectification 1) Check node address of module 2) Check 24V supply voltage 3) Substitute module FaultClass INU FaultClass ARU Fault Word 09.63: ALARM WORD 4 Bit b03 Related Parameters Related IO Panel Text IOEC Module 3 Description IOEC module 3 has a pending alarm Causes - wrong node adress - no 24V power - faulty module - wrong parameter settings Rectification 1) Check node address of module 2) Check 24V supply voltage 3) Substitute module 4) Check

parameter settings FaultClass INU FaultClass ARU Fault Word 09.63: ALARM WORD 4 Bit b04 Related Parameters Related IO Panel Text IOEC Module 4 Description IOEC module 4 has a pending alarm Causes - wrong node adress - no 24V power - faulty module - wrong parameter settings Rectification 1) Check node address of module 2) Check 24V supply voltage 3) Substitute module 4) Check

parameter settings FaultClass INU FaultClass ARU Fault Word 09.63: ALARM WORD 4 Bit b05 Related Parameters Related IO


Panel Text IOEC Modules Description IOEC sum alarm message Causes one of the IOEC modules has a pending alarm Rectification Check for other alarm or faults FaultClass INU FaultClass ARU Fault Word 09.63: ALARM WORD 4 Bit b07 Related Parameters Related IO Panel Text IOEC3 Required Description A function is enabled which requires IOEC3, but IOEC3 is not physically installed or enabled. Causes wrong parameter settings Rectification Check parameter settings FaultClass INU FaultClass ARU Fault Word 09.63: ALARM WORD 4 Bit b08 Related Parameters Related IO Panel Text IOEC4 Required Description A function is enabled which requires IOEC4, but IOEC4 is not physically installed or enabled Causes Wrong parameter settings Rectification Check parameter settings FaultClass INU FaultClass ARU Fault Word 09.63: ALARM WORD 4 Bit b09 Related Parameters Related IO Panel Text LimitSupervision Description Actual or reference value of one or more monitoring functions is below or above the limit value. Causes - The value which is monitored is below or above the limit value set by parameter - Wrong


the limit 2 Check the limit value of the monitored signal 3 Check parameters settings FaultClass INU FaultClass ARU Fault Word 09.64: ALARM WORD 5 Bit b07 Related Parameters Related IO Panel Text MacroChange Description User macro change is active. Causes - User macro change active as requeseted - User macro change by overriding system selected -

Wrong parameter settings - IOEC Module defect Rectification 1 Check parameter settings 2 Check control from overriding system 3 Check IOEC module FaultClass INU FaultClass ARU Fault Word 09.60: ALARM WORD 1 Bit b14 Related Parameters Related IO AMC34 - CH0, AMC34 -

CH4 Panel Text MCB AvailableSig Description MCB is not available for closing. Causes - MCB is in test position or racked out - MCB tripped by protection device - Wrong parameter

settings - Loose or disconnected wire(s) - IOEC I/O Moule faulty Rectification 1 Check if MCB is racked in and no trip command is actice 2 Check parameter settings 3 Check

IOEC - Module FaultClass INU FaultClass ARU Fault Word 09.63: ALARM WORD 4 Bit b11 Related Parameters Related IO IOEC2 - DI11



Panel Text MCB OnPrevent Description MCB ON Command is prevented (unexpected closing of MCB). ACS2000 is in "Ready ON" –

State :MCB ON Prevention is active => ACS6200 state changes to "NOT READY ON". ACS2000 is in "Ready RUN" – State : MCB ON Prevention is active => ACS2000 no reaction. ACS2000 is in "Ready REF" – State : MCB ON Prevention is active => ACS2000 no reaction.

Causes - digital input is "high active" but should be "low active" - IOEC I/O Module faulty - Loose or disconnected wire(s) - Wrong parameter settings

Rectification 1 Check that parameter settings correspond to the needs (high - / low active signal) 2 Check loose cable wiring, correct connection 3 Check parameter settings

FaultClass INU FaultClass ARU Fault Word 09.71: ALARM WORD 12 Bit b13 Related Parameters Related IO Panel Text MotBearingDETemp Description Motor bearing over temperature on driven end (DE) detected. Causes - bearing temperature too high, exceeds alarm level - Ambient temperature too high - bearing

cooling (oil) Faulty - Wiring in protection circuit Faulty - parameter for alarm limit is Set Wrong - IOEC Module Faulty - Wiring in The protection circuit Loose - Shielding of control cables not properly grounded


FaultClass INU FaultClass ARU Fault Word 09.67: ALARM WORD 8 Bit b13 Related Parameters Related IO Panel Text MotBearingNDETemp Description Motor bearing over temperature on non driven end (NDE) detected. Causes - bearing temperature too high, exceeds alarm level - Ambient temperature too high - bearing

cooling (oil) Faulty - Wiring in protection circuit Faulty - parameter for alarm limit is Set Wrong - IOEC Module Faulty - Wiring in The protection circuit Loose - Shielding of control cables not properly grounded


FaultClass INU FaultClass ARU Fault Word 09.67: ALARM WORD 8 Bit b14 Related Parameters Related IO Panel Text MotBearingTemp1 Description motor bearing over temperature 1 detected. Causes - Bearing temperature too high, exceeds trip level - Ambient temperature too high - Bearing

cooling (oil) faulty - Wiring in protection circuit faulty - Parameter for alarm limit is set wrong - IOEC Module faulty - Wiring in the protection circuit loose - Shielding of control cables not properly grounded

Rectification 1 Verify that the parameter settings are correct 2 Check the correct limits for overtemperature trip by consulting the customer and motor manuals 3 Check the motor bearing 1 system



Panel Text MotBearingTemp2 Description motor bearing over temperature 2 detected. Causes - Bearing temperature too high, exceeds trip level - Ambient temperature too high - Bearing

cooling (oil) faulty - Wiring in protection circuit faulty - Parameter for alarm limit is set wrong - IOEC Module faulty - Wiring in the protection circuit loose - Shielding of control cables not properly grounded

Rectification 1 Verify that the parameter settings are correct 2 Check the correct limits for overtemperature trip by consulting the customer and motor manuals 3 Check the motor bearing system

FaultClass INU FaultClass ARU Fault Word 09.67: ALARM WORD 8 Bit b08 Related Parameters Related IO Panel Text MotorBearing1 Description Motor bearing 1 alarm Causes - pending alarm related to motor bearing - wrong wiring - wrong parameter settings Rectification 1) Check bearing 2) Check wiring 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 09.70: ALARM WORD 11 Bit b03 Related Parameters Related IO Panel Text MotorBearing2 Description Motor bearing 2 alarm Causes - pending alarm related to motor bearing - wrong wiring - wrong parameter settings Rectification 1) Check motor bearing 2) Check wiring 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 09.70: ALARM WORD 11 Bit b04 Related Parameters Related IO Panel Text MotorCoolerMon Description Monitoring of motor cooling fan has released Causes - open circuit breaker (thermal protection) - Wrong wiring - Wrong parameter settings Rectification 1) Check thermal protection 2) Check wiring 3) Chech parameter settings FaultClass INU FaultClass ARU Fault Word 52.05: ACU ALARM WORD 2 Bit b14 Related Parameters Related IO Panel Text MotorHeaterMon Description Monitoring of motor space heater has released Causes - Thermal protection has released - Wrong wiring - Wrong parameter settings Rectification 1) Check thermal protection 2) Check wiring 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 52.04: ACU ALARM WORD 1 Bit b14 Related Parameters Related IO Panel Text MotorProtRelay Description Motor protection relay has released Causes - circuit breaker (thermal protection) open - wrong wiring - wrong parameter settings Rectification 1) Check thermal protection 2) check wirirng 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 09.60: ALARM WORD 1 Bit b13 Related Parameters Related IO



Panel Text MotorRunPrevent Description Run Command is prevented (unexpected start of motor). ACS 2000 is in "Ready ON" – State

:Motor Run Prevention is active => ACS 2000 keeps in "READY ON" – state & ACS 2000 state changes also to "NOT READY RUN". ACS 2000 is in "Ready RUN" – State : Motor Run Prevented is active => ACS 2000 state changes to " NOT READY RUN ". ACS 2000 is in "Ready REF" – State : Motor Run Prevention is active => ACS 2000 no reaction.

Causes - digital input is "high active" but should be "low active" - IOEC I/O Module faulty - Loose or disconnected wire(s) - Wrong parameter settings

Rectification 1 Check that parameter settings correspond to the needs (high - / low active signal) 2 Check loose cable wiring, correct connection 3 Check parameter settings

FaultClass INU FaultClass ARU Fault Word 09.71: ALARM WORD 12 Bit b14 Related Parameters Related IO Panel Text MotorStallProtec Description Motor stall protection trip. The motor stall function protects the motor from overheating by

monitoring output frequency and current. If motor frequency is below freq. limit and the torque is above torque limit for a preset time the trip is initiated..

Causes - Motor stalled as described above - Wrong parameter setting Rectification 1 Check parameter settings 2 Lower stall frequency temporarily, start drive to see if fault has

disappeared. Be careful not to overheat the motor 3 Check that motor and converter are correctly dimensioned and that they match the required load 4 Verify what kind of loading profile is normally used near the stall area. 5 Check the normal loading of the drive and verify the driven equipment and the motor bearing are functioning properly and sized correctly

FaultClass INU FaultClass ARU Fault Word 09.61: ALARM WORD 2 Bit b05 Related Parameters Related IO Panel Text MotorVibration1 Description Motor vibration 1 alarm Causes - motor has vibrations - wrong wiring - wrong parameter settings Rectification 1) Check motor for vibrations 2) Check wiring 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 09.70: ALARM WORD 11 Bit b01 Related Parameters Related IO Panel Text MotorVibration2 Description Motor vibration 2 alarm Causes - motor has vibrations - wrong wiring - wrong parameter settings Rectification 1) Check motor for vibrations 2) CHeck wiring 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 09.70: ALARM WORD 11 Bit b02 Related Parameters Related IO Panel Text MotorWdgU OTemp Description Motor winding U overtemperature alarm Causes - Motor load too high - Ambient temperature too high - Motor cooling faulty - Wrong wiring -

Wrong parameter settings Rectification 1) Check motor load and ambient temperature and compare with rated figures. Refer to motor

manual 2) Check if installation conditions are satisfactory 3) Check cooling equipment 4) Check wiring 5) Check parameter settings



Panel Text MotorWdgV OTemp Description Motor winding V overtemperature alarm Causes - Motor load too high - Ambient temperature too high - Motor cooling faulty - Wrong wiring -



FaultClass INU FaultClass ARU Fault Word 09.67: ALARM WORD 8 Bit b01 Related Parameters Related IO Panel Text MotorWdgW OTemp Description Motor winding W overtemperature alarm Causes - Motor load too high - Ambient temperature too high - Motor cooling faulty - Wrong wiring -



FaultClass INU FaultClass ARU Fault Word 09.67: ALARM WORD 8 Bit b02 Related Parameters Related IO Panel Text No3phPowerAvail Description No 3ph power (auxiliary) is available Causes - No feeding 3ph auxiliary power available - open circuit breakers - wrong wiring - wrong

parameter settings Rectification 1) Check auxiliary power 2) Check circuit breakers 3) Check wiring 4) Check parameter settings FaultClass INU FaultClass ARU Fault Word 09.62: ALARM WORD 3 Bit b01 Related Parameters Related IO Panel Text PanelLost Description Failure in the RS-485 communication between the AMC board and the control panel CDP312 or

to DriveWindow SW (if PC is used). Causes - The control panel connection may have come loose. - Wrong parameter setting Rectification 1 Check that the cable from AMC board via NDPI to the control panel is properly connected 2

Unplug and replug the cable a few times 3 Check the local control device (CDP 312 panel, DriveWindow etc.)

FaultClass INU FaultClass ARU Fault Word 09.60: ALARM WORD 1 Bit b05 Related Parameters Related IO AMC34 Panel Text ParamSaveActive Description Parameter saving is active. Causes - Parameter saving is actice as requested (e.g. Macro change, User Macro Save) - Parameter for

"parameter save" is selected Rectification 1 Parameter save is activated from overriding system FaultClass INU FaultClass ARU Fault Word 09.60: ALARM WORD 1 Bit b04 Related Parameters Related IO



Panel Text ProcessStop Active Description Process Stop is active (customer function). Causes - Process Stop function is active (as requested) - Wrong parameter settings - Loose or

disconnected wire(s) - IOEC I/O Moule faulty Rectification 1 Check parameter settings 2 Check programmed "Process Stop" function (limit value, monitored

signal) 3 Check IOEC - Module FaultClass INU FaultClass ARU Fault Word 09.63: ALARM WORD 4 Bit b00 Related Parameters Related IO Panel Text TimeoutTestSeq Description Test sequence timeout (SEQUENCE HANDLER: Sequence 2 Step 1). Causes - Wrong parameter settings Rectification 1 Check for other related faults 2 Compare all parameters with Parameter Setting List 3 Reset

aux power and restart the drive FaultClass INU FaultClass ARU Fault Word 09.61: ALARM WORD 2 Bit b00 Related Parameters Related IO Panel Text TrafoOilLevel Description Transformer oil level too high or too low (oil level indicator). Causes - Transformer protecting device is sending an alarm - oil leakage or Transformer incomplete

filling - alarm signal may by in The Wrong way (high or low active) - Loose or disconnected wire(s) - Wrong parameter settings

Rectification 1 Check transformer oil level. Refer to transformer manual 2 Check if transformer gaskets, coolers or tank is damaged (damage in these can cause oil leakage) 3 Check if the alarm signal is high or low active. 4 Check parameter settings. 5 Check the wiring between the external transformer protection and the converter. 6 Check if shielding of control cables is properly grounded

FaultClass INU FaultClass ARU Fault Word 09.70: ALARM WORD 11 Bit b09 Related Parameters Related IO Panel Text TrafoOilTemp Description Fault from external monitoring of Main transformer (Oil temperature monitoring). Causes - Transformer protecting device tripped - Loose or disconnected wire(s) - Wrong parameter

settings Rectification 1 Check external transformer protecting device and transformer 2 Check that all alarm limit

settings are correctly set 3 Check wiring between external protecting device and ACS 2000 4 Check wiring to protecting device inputs 5 Check IOEC Module

FaultClass INU FaultClass ARU Fault Word 09.70: ALARM WORD 11 Bit b10 Related Parameters Related IO Panel Text TrafoPressRelief Description Transformer rapid pressure relief alarm. Causes - Fault detected by Main transformer - Loose or disconnected wire(s) - Wrong parameter settings Rectification 1 Check transformer according to the instructions in transformer manual 2 Check that all alarm

limit settings are correctly set 3 Check wiring between Buchholz protection circuit and ACS 2000 4 Check parameters settings



Panel Text TrafoPressRise Description Transformer rapid pressure rise alarm (Buchholz) Causes - Fault detected by Main transformer Buchholz relay - Loose or disconnected wire(s) - Wrong

parameter settings Rectification 1 Check transformer according to the instructions in transformer manual 2 Check that all alarm

limit settings are correctly set 3 Check wiring between Buchholz protection circuit and ACS 2000 4 Check parameters settings

FaultClass INU FaultClass ARU Fault Word 09.70: ALARM WORD 11 Bit b12 Related Parameters Related IO Panel Text TrafoPressVac Description Alarm from external monitoring of Main transformer (vaccuum pressure rise). Causes - Transformer protecting device tripped - Loose or disconnected wire(s) - Wrong parameter

settings Rectification 1 Check external transformer protecting device and transformer 2 Check that all trip limit settings

are correctly set 3 Check wiring between external protecting device and ACS 2000 4 Check wiring to protecting device inputs

FaultClass INU FaultClass ARU Fault Word 09.70: ALARM WORD 11 Bit b13 Related Parameters Related IO Panel Text TransfCoolerMon Description Monitoring of transformer cooling fan has released Causes - open thermal protection - wrong wiring - wrong parameter settings Rectification 1) Check thermal protection 2) Check wiring 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 52.05: ACU ALARM WORD 2 Bit b13 Related Parameters Related IO Panel Text TransfHeaterMon Description Monitoring of transformer space heater has released Causes - Check thermal protection - Check wiring - Check parameter settings Rectification 1) Thermal protection switch has released 2) Check wiring 3) Check parameter settings FaultClass INU FaultClass ARU Fault Word 52.04: ACU ALARM WORD 1 Bit b13 Related Parameters Related IO Panel Text TransfWdgU OTemp Description Main transformer winding U overtemperature alarm Causes - Transformer load too high - Ambient temperature too high - Transformer cooling faulty - Wrong

wiring - Wrong parameter settings Rectification 1) Check transformer load and ambient temperature and compare with rated figures. Refer to

transformer manual 2) Check if installation conditions are satisfactory 3) Check cooling equipment 4) Check wiring 5) Check parameter settings




Panel Text TransfWdgV OTemp Description Main transformer winding V overtemperature alarm Causes - Transformer load too high - Ambient temperature too high - Transformer cooling faulty - Wrong



FaultClass INU FaultClass ARU Fault Word 09.66: ALARM WORD 7 Bit b10 Related Parameters Related IO Panel Text TransfWdgW OTemp Description Main transformer winding W overtemperature alarm Causes - Transformer load too high - Ambient temperature too high - Transformer cooling faulty - Wrong



FaultClass INU FaultClass ARU Fault Word 09.66: ALARM WORD 7 Bit b11 Related Parameters Related IO Panel Text ZeroSpeedLimForced Description Zero speed limit forced for 1sec to max speed limit value (Par. 20.03 ZERO SPEED LIMIT is set

to value of Par. 20.02 MAXIMUM SPEED) Causes - Emergency Stop by ramp faild (speed diff to big) Rectification 1 Zero speed limit is set to maximum for 1s to get "Zero Speed Indication" after a coast stop or

ramp stop failed by EmergencyStop 2 Speed difference supervision is to big FaultClass INU FaultClass ARU Fault Word 09.62: ALARM WORD 3 Bit b12 Related Parameters Related IO

For missing information contact ABB support line.

acs 2000ad appl sw troubleshooting manual

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