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Compressor Controller MAM – 860

OPERATION MANUAL

Revision 1.0

04.08.2017

04.08.2017 Operation Manual MAM - 860 V1.0 - 2 -

Notice

Please read all the operation manual before operating the set and keep this manual for further reference.

Installation of MAM—8** compressor controller can be performed only by professional technicians.

RC snubber must be connected to the two terminals of coil (such as AC contactor, valve, etc),which are

controlled by relay output.

Port connection shall be inspected carefully before power on.

PARAMETER is not allowed to be modified in running and stop delay status. Only user parameter is allowed to be changed at running status


Contents 1 Basic Operation ................................................................................................................................................... - 4 -

1.1 Button Explanation .................................................................................................................................. - 4 - 1.2 Indicator Instruction ................................................................................................................................ - 5 - 1.3 Status Display and Operation ................................................................................................................... - 6 - 1.4 Operating Parameter and Menu: ............................................................................................................. - 6 - 1.5 User Parameter View and Modification: ................................................................................................. - 7 - 1.6 User Parameter: ....................................................................................................................................... - 9 - 1.7 Factory Parameter: ................................................................................................................................ - 11 - 1.8 Calibration Parameter ............................................................................................................................ - 12 - 1.9 Operating Authorization and Password ................................................................................................. - 13 -

2 Controller Function and Technical Parameter .................................................................................................. - 13 - 3 Model and specification .................................................................................................................................... - 14 - 4 Overview .......................................................................................................................................................... - 15 - 5 Control process ................................................................................................................................................. - 16 - 6 Alarm Function ................................................................................................................................................. - 18 - 7 Alarm Function ................................................................................................................................................. - 19 -

7.2 Protection of High Discharge Air Temperature ...................................................................................... - 19 - 7.3 Protection of Air Compressor Reversal .................................................................................................. - 19 - 7.4 Protection of High Pressure ................................................................................................................... - 19 - 7.5 Protection of Sensor Failure................................................................................................................... - 19 - 7.6 Low Temperature Protection ................................................................................................................. - 19 -

8 Troubleshooting ................................................................................................................................................ - 20 - 9 Sequence Mode Control and Network ............................................................................................................. - 22 -

9.1 Sequence mode control ......................................................................................................................... - 22 - 9.2 Sequence Mode Setting ......................................................................................................................... - 23 - 9.3 Start, stop sequence control: ................................................................................................................. - 24 - 9.4 Sequence Communication Receiving and Sending Message: ................................................................ - 24 - 9.5 Network ................................................................................................................................................. - 25 -

10 Copyright ........................................................................................................................................................ - 26 -


1 Basic Operation

1.1 Button Explanation

Start Button:

When compressor is at stop status, press this button to start the compressor

When compressor is set as master (No.1) in block mode, press this button to start the compressor and

activate block mode function at the same time.

Stop Button：

When the compressor is at running status, press this button to stop the compressor

When compressor is set as master (No.1) in block mode, press this button to stop compressor and block

mode function as well

When compressor is at stop status, long press this button to display software edition

Set Button /Loading / unloading Button:

When the compressor is at running status, press this button to load, unload

When the compressor is at setting mode, press this button after modification to confirm and save the

modified data


Move down button / Decreasing button:

When viewing the menu, press this button to move downward the cursor

When modifying data, press this button to decrease the data at current position

Move up button/Increasing button:

When viewing the menu, press this button to move upward the cursor

When modifying data, press this button to increase the data at current position

Shift button /Enter button:

When modifying data, press this button to move to the next data bit

When select menu, press this button to switch to submenu. If no submenu available, the controller will

shift to data setting mode.

Return button / Reset button: When modifying data, press this button to exist data setting mode;

When viewing the menu, press this button to return to previous-menu;

When the controller is at failure stop status, long press this button to reset.

1.2 Indicator Instruction

Power Indicator： Indicator on when controller is energized. Run indicator： Indicator is on when motor is running. Alarm indicator： Indicator is blinking when alarming; indicator on when fail to stop; indicator off when

error is cleared


1.3 Status Display and Operation

The display screen will show as below after power on:

After 5 seconds, the menu will switch as below:

Press to enter into selection menu:

1.4 Operating Parameter and Menu:

Press or to move the cursor to “RUN PARAMETER”, then press to switch to secondary

menu:

Press to check MOTORS CURRENT, TOTAL RUN TIME, TOTAL LOAD TIME, and other running parameter.

Press to return to the previous menu or main menu. If no operation in certain menu for 60s, machine

will return to the main menu automatically.

WELCOME USING

SCREW COMPRESSOR

AIR T: 78°C

AIR P： 0.53MPa

NORMAL STOP 0S

C16 REMOTE

MOTOR、FAN CURRENT

TOTAL RUN TIME

THIS RUN TIME

MAINTAIN PARAMETER

RUN PARAMETER

USER PARAMETER

FACTORY PARAMETER

CALBR PARMETER


1.5 User Parameter View and Modification:

USER PARAMETER and FACTORY PARAMETER are not allowed to be modified in running and stop delay status.

In first menu press or to move the cursor to the “USER PARAMETER”.

Press to switch to the following menu

Move the cursor to the “SET P, T”, then press to switch to secondary menu

User can check the CUSTOMER PARAMETER in this menu or press to switch to the following menu which

requires a user password input

NOTE: Customer password can be set in CUSTOMER PARAMETER and is set as 1688.

SET P、T

SET TIME

OPERATION MODE

BLOCKING MODE

LOADING P: 0.8MPa

UNLOADING P: 0.6MPa

FAN START T: 80℃

FAN STOP T： 70℃

ENTER PASSWORD

****


In this menu the first data bit of password blinking, press or to modify the first bit of password.

Press move the cursor to the next data bit, modify the second data bit of password in accordeance with the

above. Modify the the third and fourth data of password in sequence, press to confirm the input data and the

menu will switch to the following menu after verification.

The upper right corner

with “*” indicates the

system verification

of the password

In the menu above press , the first data of LOADING P start to blink, user can press or to modify the

present data in accordance with the above method. Press to move to next data bit and modify the target data in

sequence. When finished press to confirm and save the data. The controller prompt sends out a short sound to

tip the completion of parameter set.

Other CUSTOMER PARAMETER share the similar way for modification.

BLOCK LOAD P: 0.8MPa *

BLOCK UNLOAD P: 0.6MPa

FAN START T: 80℃

FAN STOP T: 70℃


1.6 User Parameter:

First Submenu Second Submenu Preset Value Function

P, T SET

LOAD P 0,65 MPa

1. In AUTO LOADING status, compressor will load if pressure is below this set data 2. In STANDBY mode, compressor will start if the pressure below this set data

UNLOAD P 0,80 MPa

1. Compressor will unload automatically if air pressure is above this set data 2. This data should be set above LOADING P, also should be set below UNLD P LIM

FAN START 0080℃ Fan will start if AIR T is above this set data

FAN STOP 0070℃ Fan will stop if AIR T is below this set data

TIMER SET

MOTOR START 0010s

Set the HOST START TIME. Record time when motor is activated, controller will not start overload protection during this time to avoid impulse starting current stopping the motor.

FAN START 0005s Set the FAN START TIME. Record time when fan is activated, controller will not start overload protection during this time to avoid impulse starting current stopping the fan.

STAR DELAY 0005S Interval time from star start to delta start.

LOAD DELAY 0003S Unloading in this set time after enter delta running

EMPTY DELAY 0600S When unloading continuously, compressor will automatically stop and enter to standby status if over this set time

STOP DELAY 0030S For NORMAL STOP operation, compressor will stop after it continuously unloading over this set time

START DELAY 0030S Machine cannot be restarted before this set time (stop and over time load free stop till this time)

OPERATION MODE PRESET

RUN MODE LOCAL / REMOTE

LOCAL: only the button on the controller can turn on and turn off the machine. REMOTE: both the button on the controller and the remote control button can turn on and turn off the machine;

LOAD MODE AUTO/ MANUAL

MANUAL: only when the pressure is above Unload P, compressor will unload automatically .For any other case ,the Load/Unload function can only be executed by pressing “load/unload” key. AUTOMATICAL: the load/unload function can be executed by the fluctuation of AIR P automatically

COM MODE MODBUS SEQ BAN

BAN: communication function is not activated. MODBUS: compressor can communicate with computer or DCS as slave according to MODBUS-RTU. SEQ: compressors can work in a net

COM ADD 0255 Communication address


SEQUENCE PARA SETTING

SEQ STATE HOST/ SLAVE

1. When service as master in SEQUENCE, master controls slave; the COM ADD should be set as No.1 2. When service as slave in SEQ, slave is controlled by master

TURN TIME 99 Hours

When master pressure is between SEQ LOAD P and SEQ UNLD P, master determines slave to work alternatively after working over this set time

SEQ NUMBER 0016 Number of air compressors in block net

SEQ LOAD 1.36MPa In SEQ mode, one compressor will start or load when master AIR P is below this set data

SEQ UNL. 1.36MPa In SEQ mode, one compressor will stop or unload when master AIR P is above this set data

SEQ DELAY 200S In SEQ mode, when master sends two commands continuously, second command signal delays for this set data

CLR LIFE TIME

OIL FILTER 0000H Record total running time of OIL filter. If changing new oil filter, the data should be reset by manual operation.

O/A FILTER 0000H Record total running time of O/A separator. If changing new O/A separator, the data should be reset by manual operation.

AIR FILTER 0000H Record total running time of AIR filter. If changing new AIR filter, the data should be reset by manual operation.

LUBE 0000H Record total running time of LUBE. If changing lubricate, the data should be reset by manual operation.

GREASE 0000H Record total running time of GREASE. If changing new grease, the data should be reset by manual operation.

BELT 0000H Record total running time of BELT. If changing new belt, the data should be reset by manual operation.

MAX LIFE TIME PRESET

OIL FILTER 0500H

1, Alarm prompt when total running time of oil filter is above the set data . 2, Set this data to “0000”, alarm function for oil filter running time is not activated

O/A FILTER 3000H

1, Alarm prompt when total running time of O/A separator is above the set data. 2, Set this data to “0000”, alarm function for O/A separator running time is not activated

AIR FILTER 0500H

1, Alarm prompt when total running time of air filter is above the set data. 2, Set this data to “0000”, alarm function for air filter running time is not activated

LUBE 0500H

1, Alarm prompt when total running time of lubricant is above the set data. 2, Set this data to “0000”, alarm function for lubricant running time is not activated.

GREASE 3000H

1, Alarm prompt when total running time of grease is above the set data. 2, Set this data to “0”, alarm function for grease running time is not activated

BELT 3000H

1, Alarm prompt when total running time of belt is above the set data. 2, Set this data to “0”, alarm function for grease running time is not activated

LAN. SEL English Change the display language.

User password modification

****

User could modify the user password by old user password or factory password


1.7 Factory Parameter:

The view and modification of factory parameter requires a factory password, The modification step is same as

customer parameter modification. Main function is as below.

Menu Initial Data Function

MOTOR CUR Maximum motor overload data /1.2

When the current of motor is more than 1.2 times of the set data , the unit will stop for overload feature. (see table2.1.1)

FAN CUR Maximum fan overload data/1.2

When the current of fan is more than 1.2 times of the set data , the unit will stop for overload feature.

ALARM T. 105℃ When discharge air temperature reaches this set data, compressor will alarm

STOP T. 110℃ When discharge air temperature reaches this set data, compressor will alarm and stop

STOP P. 0.90MPa When pressure reaches this set data ,compressor will alarm and stop

MAX U.L. 0.80MPa This data is the maximum of UNLOADING P. The UNLOADING P in the customer parameter must be set no higher than this data.

RUN TIME 000100Hours Modify the TOTAL RUN TIME

LOAD TIME 000095Hours Modify the TOTAL LOAD TIME

CLR FAULT **** Input the password 8888 and press “set “button to clear all the history failure record.

CUR UN.BAL. 0006 MAX-MIN >= SET*MIN/10, respond time is 5s If the set data ≥ 15, the unbalance protection will be invalid.

LACK PAHSE 002.0s If OPEN PHASE protection ≥20 seconds, OPEN PHASE protection is invalid

DATA ****-**-** Production date

SERIAL ******** Product serial No.

PHASE PRO. ON/OFF ON: turn on phase sequence protection OFF: turn off phase sequence protection

FRE. SEL 50HZ/60HZ Set the operation power frequency

SEQ MODE ADV/COMP Set as compatible mode, block mode is the same as the other series. When block control with MAM 8*0 controller and set as advanced mode, more block mode function is available

HIGH VOL. 0460V 1. Controller detects the voltage higher than this set data, the shutdown protection starts and reports HIGH VOL. 2. Set this data to 0000, the HIGH VOL. protection function is invalid

LOW VOL. 0320V 1. Controller detects the voltage lower than this set data, shutdown protection starts and reports LOW VOL. 2. Set this data to 0000, the LOW VOL. protection function is invalid

LOW T PRO- -0018℃

1. In stop mode, air compressor is not allowed to start when discharge air temperature is lower than this set data 2. Two minutes after turn on, when the air temperature is below this data, compressor will stop and display T SENSOR FAULT

TIME LIM 0000H

1. When the compressor is in a stop status and the TOTAL RUN TIME exceeds this TIME LIM set, the controller will stop the compressor and display USER MISTAKE; 2. If this data is set to ‘0000’, TIME LIMIT function is invalid.

ALM STOP 0010H Controller detects oil filter, O/A separator, air filter, lubricate oil, grease and belt running with alarming over this ALARM STOP set, compressor will stop and report ”ALARM LONG STOP ”

COM SET PARA ON/OFF

1. When set as ON, User can use DCS to set data through MODBUS protocol 2. When set as OFF, User cannot use DCS to set data through MODBUS protocol 3, User can use DCS to set data only when compressor is at stop status

PARA1 **** User could modify the factory password by old factory password.


PRES UNIT MPA BAR PSI

Change the pressure unit

TEMP UNIT °F °C

Change the temperature unit

1.8 Calibration Parameter

You can set relative data of controller in CALBR PARA. It is not allowed to view and modify without manufacturers

authorization, so please verify the password before view and modification. The modification of CALBR PARA is similar

with CUSTOMER PARA. Main function is shown as below.

Menu Initial Value Function

MOTOR A

TARGET CUR 0000 Enter the current value, the controller will detect user input value divided by the current to the current value, calculate the current coefficient

COEF 1.000 Calibration current, the input coefficients. Controller displays the current value = sample value × COEF

CUR ***.*A Displays the current controller sampling current values. This value is the real value and cannot be set.

MOTOR B




MOTOR C




FAN A




FAN B



CUR ***.*A Displays the current controller sampling current values. This value is the real value and can not be set.

FAN C





1.9 Operating Authorization and Password

Controller provides multiple passwords and access management. According to different levels of passwords, controller

provides different levels of operating authorization. Details are as following:

Customer Password: factory set ____________

Permissions: Allows to modify all Customer Parameter

Factory Password: fixed ____________

Permissions: Allows user to modify all Parameter

Calibrate Password: fixed ____________

Permissions: Allows user to modify CALBR PARAMETER

2 Controller Function and Technical Parameter

Phase sequence protection:

When compressor is at stop mode an detects open phase, response time <2ms

Open phase protection

When any phase opens, the response time equals to set time: This fuinction is not activated when OPEN

PHASE PROTECTION time is set over 20s

Motor protection: This control unit has the following 5 basic protection functions to the motor and fan.

o Rotor lock protection: After the starting oft he motor, if the working current reaches 4 or 8 times oft he

set value, the protection activates. The activate time is less than 0,2s.

o Short circuit protection: If the detected current reaches 8times or more above the set value, the

protection activates, the activate time is less then 0,2s

o Lack phase protection: Any oft the phase lack, the protection activates and theactivate time ist he

setting time

o Unbalance protection: The current difference between any of the two phases reaches the percentage

of the setting value, the protection activates and the activate time is less than 5s.

o Protection features of overload, please see following table for your reference. Multiple＝Iactual／Iset ,

response time is shown in following table according to overload multiples from 1.2 times an

3.0times.

Iact/I set Time Para

≥1.2 ≥1.3 ≥1.5 ≥1.6 ≥2.0 ≥3.0

response time (s) 60 48 24 8 5 1


3 Model and specification

Main controller model description

MAM - 860 (B)（T）（V）（40） Max work current match with motor

With voltage detection & protection

RS485 communication

Pressure converter

860 controller

Products Series

Power consumption table for corresponding motor

Parameter Spec. Current Range

（A）

Adopted Host Motor Power

（KW） Remarks Descriptions

MAM—KY02S（20） 8～20 4～10

Fan has three levels of current. Such as 0.2-2.5A, 1-5A and 4-10A, determined by current of motor.

MAM—KY02S（40） 16～40 8～20 MAM—KY02S（100） 30～100 15～50 MAM—KY02S（200） 80～200 40～100 MAM—KY02S（400） 160～400 80～200 MAM—KY02S（600/5） 100～600 50～300

Connect to CT


4 Overview

△

1211

CT1

C

B

A

c

b

10

98

76

54

32

192021

CT2

a

31

30

29

28

27

262

52

42

32

2

FG

1

A

BRS-485

C1

、

ub uauc

13 14 15 16 17 18

Figure 4.2.1 Terminal arrangement diagram

Cable connection of controller：

1 Common terminal for digital input 2 Input terminal for emergency stop signal

3 Input terminal for remote control signal ( on/off )

4 Input terminal used to detect oil filter

5 N/A 6 RS485+

7 RS485- 8 Terminal for ground connection 9 Terminal for the AC20V power source

10 Terminal for the AC20V power source

11 N/A 12 N/A

13 Common terminal for digital output

14 Terminal to control fan 15 Terminal to control load valve

16 Terminal to control delta contactor

17 Terminal to control star contactor 18 Terminal to control main contactor

19 Input terminal to detect the phase sequence and voltage



22 Power terminal for pressure sensor

23 Input terminal to receive pressure sensor signal

24 Terminal for motor CT1 input

25 Terminal for motor CT1 input 26 Terminal for motor CT1 input 27 Terminal for fan CT2 input 28 Terminal for fan CT2 input 29 Terminals for fan CT2 input 30 Terminal for discharge air

temperature sensor 31 Terminal for discharge air

temperature sensor

Attention: The magnetic coil must be connected to the surging absorber when wiring


5 Control Process

Single Machine

Working principle (On/off mode: Local; Load mode: Auto)

①、 Press to start: (Y-△start)

The air compressor can not be started by pressing until 5 seconds self checking finished.

The start process of compressor is as followed: 18 terminal closed, KM2 is energized; 17 terminal

closed, KM3 is energized → Y start → STAR DELAY me starts record; when Y-△transfer time

over,17 terminal open, KM3 is de-energized and 16 terminal closed, KM1 is energized → motor

operates in △. (KM1 and KM3 are interlocked)

②、 Automatic operation control: 2.1: When motor enter delta status, LOAD DELAY starts, controller will load automatically after

LOAD DELAY.

2.2: If air pressure is detected higher than UNLOADING P set, 15 terminal opens, loading valve is

de-energized, and air compressor starts unloading, and also starts EMPTY DELAY time record,

if unloading time exceed EMPTY DELAY set, compressor will enter STANDBY mode; if

compressor loading again within “EMPTY DELAY” set (when pressure is below LOADING P or

receiving load command), compressor will reset “EMPTY DELAY”.

2.3: In STANDBY mode, controller start automatically if pressure detected is below LOADING P

③、 Manual loading/unloading operation under automatic status 3.1 When air pressure is between LOADING P and UNLOADING P, press “loading/ unloading” to

switch the current status of controller.

3.2 When air pressure is above the UNLOADING P, controller unloads automatically, the

loading/unloading button is invalid

3.3 When air pressure is below the UNLOADING P, controller loads automatically, the

loading/unloading button is invalid

④、 Normal stop:

Press , the loading magnetic valve will be de-energized, after a while of delay (stop delay),

all output relay stop working.

⑤、 The frequent starting control Air compressor can not start again immediately after NORMAL STOP, EMPTY LONG STOP or

FAILURE STOP. It can start again after START DELAY.


Remote Automatic Control (Control Mode: Remote; Load Mode: Auto)

In this mode, compressor can be turned on or off by remote control.

Local Control (Control Mode: Local, Load Mode: Manual)

a. Control of start and stop are same as automatic control, but device is in status of unloading after

finish starting process.

b. In unload status, press to load. When air pressure is higher than UNLOADING P set, the

device will unload automatically.

c. If not press ,the device will run unload until EMPTY DELAY.

d. In load status, press to unload.

Net Work

a. Controller works as slave when communication mode is set as “MODBUS”, and communicates

with monitoring center through MODBUS.

b. Controller and other controller can block work when communication mode is set “SEQ” but the

master only can service as 1# compressor.

Fan Operation

When discharge air temperature is higher than FAN START T, fan operates; when discharge air

temperature is lower than FAN STOP T, fan stops.


6 Alarm Function

6.1 Monitor text

6.1.1 Air filter alarm

1. Use switching signal to detect alarm

The monitor displays AIR FILTER BLOCK by checking air filter differential pressure switch

2. Set AIR filter max. time

The monitor displays AIR LIFE END when the run time of air filter exhausts

6.1.2 Oil filter alarm


The monitor displays OIL FILTER BLOCK by checking oil filter differential pressure switch

2. Set OIL filter max. time

The monitor displays OIL LIFE END when the run time of the oil filter exhausts

6.1.3 O/A alarm


The monitor displays O/A BLOCK by checking O/A filter differential pressure switch

2. Set O/A max. time

The monitor displays O/A LIFE END when the run time of the O/A Separator exhausts

6.1.4 Lubricating oil alarm The monitor displays LUBE LIFE END when run time of lubrication oil exhausts

6.1.5 Grease alarm

The monitor displays GREASE LIFE END when run time of the grease exhausts

6.1.6 Belt alarm

The monitor displays BELT LIOFE END when the run time of Belt exhausts

6.1.7 High discharge air temperature alarm The monitor displays HIGH TEMPERATURE when controller detects the discharge air temperature is

higher than ALARM T set data in MANUFACTORY PARA


7 Alarm Function

7.1 Motor Protection MAM-860 air compressor controller provides overload, open phase, current unbalance, high voltage, low

voltage protection for motor and overload protection for fan.

Electronic Failure Failure Display Reason

Overload Display “MOTOR/FAN OVERLOAD” Overload, bearing wear and other mechanical failure

Open phase Display “MOTOR OPEN PHASE” Power supply, contactor and open phase of motor

Unbalance Display “MOTOR UNBALANCE” Poor contact of contactor, inside open-loop of motor

High Voltage Display “HIGH VOLTAGE” High supply voltage

Low Voltage Display “LOW VOLTAGE” Low supply voltage

7.2 Protection of High Discharge Air Temperature

When discharge air temperature is above the high limit of set temperature, the controller will send out the

alarm to shut down the machine. This fault displays HIGH T.

7.3 Protection of Air Compressor Reversal

When compressor stops and three phases sequence is not in order, this fault displays PHASE REVERSAL,

and the controller cannot star the motor. It is needed to check and alternate any two of the phase

sequence and investigate the motor rotation direction.

7.4 Protection of High Pressure

When the AIR P is above the STOP P, the controller will send out the alarm to shut down the machine. This

fault displays HIGH P

7.5 Protection of Sensor Failure

When pressure sensor or temperature sensor is disconnected, the controller will send out the alarm to

shut down the machine and this fault displays **SENSOR FAULT

7.6 Low Temperature Protection

When discharge air temperature is below LOW T PRO in manufacturing parameter, this fault displays P

SENSOR FAULT two minutes after compressor turns on, the controller will send out the alarm to shut down

the machine.


8 Troubleshooting

8.1 This fault review

Failure stop caused by the external parts of controllers may be removed by checking this fault or history

fault, method is shown as below.

Press or to move the cursor to “RUN PARAMETER”, then press to switch to secondary

menu

Press to move the cursor to “CURRENT FAULT”

Then press to reach the following failure cause:

Check the temperature sensor to confirm if there is any line broken or damage.

MOTOR、FAN CURRENT

TOTAL RUN TIME

THIS RUN TIME

MAINTAIN PARAMETER

HISTORY FAULT

PROD. DATE/NUM

CURRENT FAULT

Temperature sensor Failure

170℃


User can reset the error according to the following information: Failure Causes Measurement to take

AIR T HIGH Bad vent condition, Oil lacking etc. Check the vent condition and lubricant amount etc.

AIR T SENSOR FAULT Cable off or PT1OO damaged Checking the wiring and PT100

AIR P HIGH The pressure too high or the pressure sensor failure

Check the pressure and the pressure sensor

AIR P SENSOR FAULT Cable off, Sensor damaged or the cable connected reversed

Check the wiring and sensor transformer

LACK WATER Water Pressure switch damaged Check the water pressure switch

LACK PHASE Power phase lacking or the Contactor terminal damaged Check the power and contactors

OVERLOAD Voltage too low, tubes blocked, bearing wear off or other mechanical failure or wrong set data etc.

Check the set data, Voltage, bearings, tubes and other mechanical system.

UNBALANCE Power unbalance, contactor damaged or the internal open of the motor

Check the power, contactors and the motor

BLOCK Voltage too low, tubes blocked, bearing wear off or other mechanical failure or wrong set data etc.

Check the set data, Voltage, bearings, tubes and other mechanical system.

SHORT CIRCUIT Wrong cable connection, wrong set data

Checking the wiring and set the data correctly

WRONG PHASE SEQUENCE Reversed Phase sequence or phase off Check the wiring

Fan stopped Fan damaged, Contactor damaged, no control output

Check the wiring and control output

Overload or Rotor locking during starting process

Start time set too less than the star delta time delay

Reset the host starting time to be longer than star delta delay + load delay time

Main Contactor activate time to time

The emergency button loose Check the wiring


9 Sequence Mode Control and Network

9.1 Sequence mode control

MAM-860 controller can operate with other MAM series compressor (with communication function). 16 pcs

compressors are allowed in the net at most. The cable connection for block mode is as below….

A B A B A B A B A B

Compressors with net communication address 0001 is master, others are slave. Any one MAM series compressors

can be set as master or slave

Master 1 Slave 2 Slave 3 Slave 4 Slave 16


9.2 Sequence Mode Setting

9.2.1 Set as Master:

Press or to move the cursor to “USER PARAMETER”, then press to switch to the menu

below:

Move the cursor to the “OPERATION MODE”, then press to switch to the menu below.

Set “COM MODE” as SEQ

Set “COM ADD” as 0001

Return to the previous menu, move the cursor to “SEQ PARA SET” press to switch to the menu below.

According to user requirement, set SEQ STATE as Host, set TURN TIME, SEQ NUMBER, SEQ LOAD, SEQ

UNLOAD and SEQ DELAY according to user´s need.

Attention: After setting, controller needs to be powered off and restarts to the settings!

P, T SET

TIMER SET

OPERATION MODE

SEQ PARA. SET

RUN MODE: REMOTE

LOAD MODE: AUTO

COM MODE: SEQ

COM ADD： 0001

SEQ STATE: HOST

TURN TIME: 0099H

SEQ NUMBER: 0016

SEQ LOAD： 1,36MPa

SEQ UNLOAD: 1,36MPa

SEQ DELAY: 200s


9.2.2 Set as Slave: When MAM controller serves as slave, it is only necessary to set COM MODE as SEQ. Set COM ADD from 2 –

16 with sequence according to the quantity of compressors, and SEQ STATE as SLAVE.

9.3 Start, stop sequence control:

Make sure sequence cables connect correctly and the parameter of compressors in net set correctly.

Activate master, master controls the compressors in Net automatically according to the air pressure

detected. Sequence control stops at the same time when manually stop the master. So master will no longer

send command to compressor in net.

9.4 Sequence Communication Receiving and Sending Message:

The message received and set by RS485 can be displayed by the corresponding indication screen which is

convenient for customer to make sure if they have received and feedback data in SEQ MODE or COM MODE.

The method to switch to communication menu is as below:

Press or in main menu and select “RUN PARAMETER” and move down the cursor to communication

menu. Press to switch to the menu below:

When controller receives data, RX “—“ and “*” display alternately. When sends data, TX “—“ and “*” display

alternately. When controller is in SEQ mode or communicates with monitoring center, user can confirm the

establishment of communication through this menu.

AIR T: 78°C ◊

AIR P： 0.53MPa

NORMAL STOP 0S

C16 REMOTE

◊: Blinking icon indicate

master has active seq

mode function

RX: ----

TX: ----


9.5 Network

MAM-860 controller supports MODBUS RTU protocol and can serve as slave when connect with other equipment

and supports 03, 06, 16 MODBUS command.

Communication baud rate: 9600BPS

1 start bit

8 data bits

1 stop bit

even parity


10 Copyright

This manual is protected by copyright and intended solely for internal use.

This manual must not be made available to third parties, duplicated in any manner or form – whether in whole or in

part – and the content must not be used and/or communicated, except for internal purposes, without the written

consent of the manufacturer. Violation of the copyright will result in legal action for damages. We reserve the right to

assert further claims.

Tolpec GmbH

Wertstrasse 44

D- 73240 Wendlingen

Telephone: +49 (0)7022 789 604-0

E-mail: [email protected]

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