DAVR

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Presentation by:

Sadashiva Achary/ DGM-Sub Assy Engg

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DAVR CPU module 69203DB1A(UN0660)

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

Memory 32 Kbytes Program memory (EPROM)

4 x 8 Kbytes - EPROM/EEPROM/RAM

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 1 to 16 bits Serial, addressable up to 4096 bits.

Together with Analog I/O module 69203IV1A (UN0611) Analog Inputs - 8 Channels (Bipolar, Programmable as 10V or50V)

Analog Outputs 1 Channel, 10V. Digital Inputs 4 (24 Volts)

Digital Outputs 1 (24 Volt)

Relay contact Outputs 4 NC / NO

Power supply: +5V, 15V, +24V

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DAVR Interrupt Generator module

69203GB1A(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.

Program execution in CPU is monitored.

Interrupt rate is monitored.

Internal clock is monitored.

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

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


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DAVR Digital I/O module 69203NB1A(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

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DAVR Digital Firing and control module

69203DU1xA(UN0663-xxx) 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 (Bipolar10V)

Analog Outputs 1(Bipolar10V)

Measures synchronizing input.

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


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DAVR- Analog I/O module 69203NA1A(UN0610)

Analog inputs - 16 (common mode) or 8 (diff. mode)0 to +10V or10V (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 for I/P address and Other for O/P)

Self checking for functioning of A/D and D/A chips.


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DAVR Alarm Indication module

69203SV1A(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

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DAVR Current Flow Monitor module

69203SJ1A(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 Thyrisotr is indicated by lighting acorresponding 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 firing pulse or timingcircuit, entire monitoring is blocked.

Module selection is through 4 bit address switch


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DAVR Micro terminal module

69203TB2A(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 areavailable at 4 test points.

Gets 24Vdc supply from the target CPU.

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.

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DAVR DC-DC Power supply module

69203PY1A(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.

Parallel connection of 2 modules with current balancing.

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

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DAVR Voltage and current measuring module

69203IA1A(UNC4660)

Input Voltage: Generator, synchronizing & a spare

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

1x100Vac .. 120Vac(spare)

Rated Frequency: 50/60Hz,

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: 50/60Hz,

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

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DAVR-Binary Input module 69203IBxA(UNC4661)

No of Channels: 16

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

selectable thro input resistance value

No of outputs: 16

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

Isolation: Input to Input : 2KVac for 1 MinInput to Output: 2.5KVac for 1 Min

Power supply 24Vdc.

DAVR-Binary Output module 9203OB1A(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.

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