davr_2805

Technical Training programme on

DAVR - Modules

Keshav Kishore Sharma/Engineer-SAE

BHEL-EDN, Bangalore-560026

PROCESS

CONTROL

ROOM

BINARY

OUTPUT

BINARY

INPUT DIGITAL

INPUT/

OUTPUT

MICROTERMINALCPU

POWER

SUPPLY

AC-DC

POWER

SUPPLY

CRU bus

CONSTITUENT BLOCKS OF DAVR

V&I

MEASURE

INTERRUPT

GENERATOR

FIRING

CONTROL

ANALOG

INPUT/OUTPUT

PULSE

AMPLIFICATION

SUPPLY

DC-DC

CRU bus

Technical Training Programme on DAVR - Modules

CPU module 69203DB1AA(UN0660)

• Processor – 16 bit, TMS9995 (Texas Instruments) at 12Mhz.

• Memory Organization:

BLOCK RANGE APPLICATION

V E000-FFFF RAM/NOVRAM

IV C000-DFFF EEPROM,TIMER,INPUT/OUTPUT

III A000-BFFF EPROM

II 8000-9FFF EPROM

I 0000-7FFF EPROM

• Serial Interface - RS232/RS422 (Programmable)

• Digital Inputs – 6 (TTL level), 10 (HCMOS), 7 (24 Volts)

• Digital Outputs – 9 (TTL Level), 14 (HCMOS), 4 (24 Volts)

• I/O BUS – With CRU addressing 2048 bits can be addressed. Each bit corresponds to an Address.

I 0000-7FFF EPROM

Technical Training programme on DAVR - Modules

CPU module 69203DB1AA(UN0660)


Interrupt Generator module 69203GB1AA(UN0661)

• Measures Generator voltage (7Vdc at 3 x 22Vac(line) input)

• Measures Generator current (7Vdc at 3 x 5Vac input)

(4.2Vdc at 3 x 3Vac input)

• Measures Sync voltage (7Vdc at 3 x 22Vac(line) input)

• Conditions Field Current (3Vdc nominal)

• Generates 12 interrupts per Cycle (sync to R-phase signal)

• Generates 12 interrupts per 20ms (during free run condition)

• Monitors frequency and voltage level of actual output.

• Monitors Program execution in CPU• Monitors Program execution in CPU

• Monitors Interrupt rate.

• Monitors Internal clock.

• Digital Inputs – 5 (24 Volt), 6 (HCMOS)

• Digital Outputs – 16 (HCMOS), 2 (24 Volts)

• Power supply: +5V, ±15V, +24V


Interrupt Generator module 69203GB1AA(UN0661)


Digital I/O module 69203NB1AA(UN0662)

• Digital Inputs – 16 (24V) Static inputs.

• Digital Inputs – 16 (24V) Programmable as Pulse/Static inputs.

• Digital Outputs: 32 (24V)

• Self monitoring of the module.

• Module selection through 2 x 6-bit address Switch.

(One switch for I/P address and Other for O/P)

• Power supply: +5V, +24V • Power supply: +5V, +24V


Digital I/O module 69203NB1AA(UN0662)


Digital Firing & control card 69203DU1xA(UN0663-xxx)

Processor – 16 bit, TMS9995 (Texas Instruments) at 12Mhz.• Processor – 16 bit, TMS9995 (Texas Instruments) at 12Mhz.

• Memory – 32 Kbytes Program memory (EPROM)

• Digital Inputs – 16 (24 Volts)

• Digital Outputs – 8 (24 Volts)

• Analog inputs – 3 (Bipolar ±10V)

• Analog Outputs – 1(Bipolar ±10V)

• Measures synchronizing input.

• Generates 6 firing pulses(angle 10°min to 170°max according to Control input with frequency compensation (10 Hz to 180Hz for rated freq of 50, 75, and 150Hz and 10 to 1.1x rated freq for rated freq >=300Hz).10 to 1.1x rated freq for rated freq >=300Hz).

• Control input as analog or Digital(selected thro 6 bit add. Switch)

• Controlling action selectable as Uc/If and Internal/external.

• Pulse blocking if any of the pulse is shorted to GND/other pulse.

• Reference value generator selectable as internal and external.

• Follow-up control with the additional reference value input.



Digital Firing & control card 69203DU1xA(UN0663-xxx)


DAVR- Analog I/O module 69203NA1AA(UN0610)

• Analog inputs - 16 (common mode)

- 8 (differential mode)

• Input range - 0 to +10V or ±10V (selectable)

• 6 channels used as sample and Hold inputs.

• Analog Outputs - 2 (0 to 10V or ±10V; Selectable)

• Module selection through 2 x 6 bit address switch.

(One switch each for I/P and O/P addresses)(One switch each for I/P and O/P addresses)

• Self checking for functioning of A/D and D/A Converters



DAVR- Analog I/O module 69203NA1AA(UN0610)


Alarm Indication module 69203SV1AA(UN0665)

• No of Channels – 32 (LED indication)

• Module selection through 6 bit address switch.

• Module can be used as Master or Slave.

• Power supply: +5V


Current Flow Monitor module 69203SJ1AA(UN0667)

• Used in Excitation Monitoring system only.

• Checks for the conduction of the Thyristor within 1 ms time after giving the firing Pulse.

• Monitors up to 2 Thyristor Bridges.

• Failure of each Thyristor is indicated by lighting a corresponding LED on the Front Panel of the module.

• Master and Slave operation.

• Self testing of the firing pulse inputs and internal timing circuit. On failure of any • Self testing of the firing pulse inputs and internal timing circuit. On failure of any firing pulse or timing circuit, entire monitoring is blocked.

• Module selection is through 4 bit address switch



Micro terminal module 69203TB2AA(UNS2660)

• Used for data communication with CPU module

• Displays 4 lines of Hex or Decimal Data on LCD (4 x 16 char)

• Identifies automatically the target CPU.

• Data read memory range: 0000H to FFFFH

• Data write memory range: Depends on the target CPU module.

• 4 analog signals corresponding to the 4 Hex data displayed are available at 4 test points.

• Gets 24Vdc supply from the target CPU.

• RS232 printer Output port.• RS232 printer Output port.

• 5 x 6 matrix keypads with de-bounce arrest circuit.

• 12 keys with dual function with the help of Shift key.

• Power supply: 24Vdc

• Failure of communication with CPU module is indicated by ‘Transfer Error’ with periodic checking for communication.


DAVR – AC-DC Supply module 69203PZ1A(UNC4664)

• Input: 82Vac- 165Vac(±10%), 12.3A max

110Vdc to 250Vdc (±25%),,15A max

• Output: 82Vdc to 312Vdc , 13A max


DC-DC Power supply module 69203PY1AA(UN0664)

• Input : 110Vdc(82V - 156V), 1.7A(2.3A - 1.2A)

220Vdc(165V-312V), 0.85A (1.13A – 0.6A)

• Output: +5V(5.0V to 5.2V) ,5A, 0.3A Base load.

±15V(± 14.21V to ± 15.8V), ± 1.0A, ±0.1A Base load

+24V(22.8V to 26.4V), 4.0A, 0.2A Base load

• Over voltage monitoring : 5.5 V on 5V output (instant tripping)

• Under Voltage monitoring :4.7V, ±13.9V, 21V (Trips after 10 s)

• Remote shutdown facility.• Remote shutdown facility.

• Parallel connection of 2 modules with current balancing.


DC-DC Power supply module 69203PY2AA

• Input : 110Vdc(60V - 156V), 1.7A(3.0A - 1.2A)

• Output: +5V(5.0V to 5.2V) ,5A,

±15V(± 14.21V to ± 15.8V), ± 1.6A,

+24V(22.8V to 26.4V), 4.0A

• Under Voltage monitoring : 4.7V, ±13.9V, 21V (Trips after 10 s)



DC-DC Power supply module 69203PY2BA

• Input : 220Vdc(100V - 375V), 1.7A(1.8A - 0.5A)

• Output: +5V(5.0V to 5.2V) ,5A,

±15V(± 14.21V to ± 15.8V), ± 1.6A,

+24V(22.8V to 26.4V), 4.0A

• Under Voltage monitoring : 4.7V, ±13.9V, 21V (Trips after 10 s)



V and I measuring module 69203IA1AA(UNC4660)

• Input Voltage: Generator, synchronizing & a spare

• Rated Input: 3x100Vac .. 120Vac(Generator and synchronizing)

1x100Vac .. 120Vac(spare)

• Input voltage range: 0 to 130% of rated

• Input Frequency range: 80 to 120% of rated

• Input Current: Generator Current, Field Current

• Rated Input: 3 x 1A or 5A(Generator); 2 x 1A or 5A(Field)

• Rated Frequency: 50 - 400Hz,

• Input Current range: 0 to 150% of rated• Input Current range: 0 to 150% of rated

• Input Frequency range: 80 to 120% of rated

• Output Voltage: 3 x 20..24Vac (Generator and Synchronizing)

1 x 20.. 24Vac(Spare)

• Phase Error input/output <1°el

• Output Current: 3 x 3Vac (Generator)

1 x 3Vdc (Field)


Binary Input module 69203IBxAA(UNC4661)

• No of Channels: 16

• Input voltage: 24V, 48V, 110V, 125V, 220V, 250V

(selectable through input resistance value)

• No of outputs: 16

• Output Voltage: 20Vdc to 23Vdc at 10ma load.

• Isolation: Input to Input : 2KVac for 1 Min

Input to Output: 2.5KVac for 1 Min

• Power supply 24Vdc.• Power supply 24Vdc.


Binary Output module 69203OB1AA(UNC4662)

• No of Channels: 16

• Input voltage: 20V to 23Vdc, 6mA

• Output Relay Contact rating: 250Vac/dc, 2A

• Isolation: Output to Output : 2KVac for 1 Min

Input to Output: 2.5KVac for 1 Min

• Power supply 48Vdc.


AC/DC Power Supply Module:CE69133390 (KX9170)

• Converts 110Vdc/120Vac into +48Vdc @4A

• Input voltage: 84Vac to 145Vac (75Vdc to 160Vdc)

• Output Voltage: +48Vdc rated.

• Under Voltage Monitoring : <=43Vdc

• Under Voltage Monitoring Relay: NO contact will be closed.


Pulse Intermediate Stage (CE69143350, UN 0096)

• Amplifies the output pulses of 6 pulse control sets

• Potential of output pulses is separated from the one of input pulses by pulse

transformers.

• The output pulses can be blocked.

• Power supply: 15V


Pulse output stage (CE69138930, UN0097)

• Amplifies pulses of the intermediate stage to required level for triggering power

thyrsistors

• It comprises of 6 identical 48V output stages.

• Each stage can trigger upto 4 parallel or series Thyristor

• Blocking logic is provide to block the pulses.

• Power supply 48V,10V


Potential separation stage (CE69136570, UN0099)

• It matches 6 positive input pulses supplied by intermediate pulse stage

• Isolation is provided between output and input pulses by Opto-coupler.

• Power Supply 15V


Memory card ( 69203YV1AA , CT370)

• It contains four identical functions for storage of signals

• The output of memory module are mutually antivalent

• Power supply: 24V


Command input module ( 69203YB1AA ,UNS2661)

• Serves to local operation of excitation system.

• Provided with push-button switches for providing inputs

• Input voltages :21-26V

• Output voltages :21-26V


Pulse supervision module (CE69111070,UN 0053)

• For functional supervision of Six firing pulses

• Gives indication on continuous or periodical failure of one or more pulses.

• Power supply :15V, -15V


davr_2805

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