Basler Electric DECS-200 Digital Excitation Control System

Terminals: A9 (+), A10 (–)

Communication Ports

Interface

RS-232: Full duplex

RS-485: Half duplex

Connections

Com 0: Front panel DB-9 connector

Com 1: Right-side panel DB-9 connector

Com 2: Left-side panel screw terminals (A43. A44. A45)

Parameters

Baud: 1200 to 19200

Data Bits: 8

Parity: None

Stop Bits: 1 (Com 0. Com 1) or 2 (Com 2)

Contact Inputs

Type: Dry contact; accept PLC open-collector outputs

Interrogation Voltage: 12 Vdc

Terminal Assignments

Start: A21. A22

Stop: A23. A24

Auto (AVR): A25. A26

Manual (FCR): A27. A28

Raise: A29. A30

Lower: A31. A32

Pre-Position: A33. A34

Unit/Parallel (52L/M): A35. A36

Var/PF (52J/K): A37. A38

Secondary Enable: A39. A40

Alarm Reset: A41. A42

Contact Outputs

Make and Break Ratings (Resistive)

24 Vdc: 7.0 A

48 Vdc: 0.7 A

125 Vdc: 0.2 A

120/240 Vac: 7.0 A

Carry Ratings (Resistive)

24/48/125 Vdc: 7.0 A

120/240 Vac: 7.0 A

Terminal Assignments

Start/Stop (ON, OF): A11. A12

Watchdog (WTCHD): A13. A14

Relay 1 (RLY1): A15. A16

Relay 2 (RLY2): A17. A18

Relay 3 (RLY3): A19. A20

Field Output

Continuous Output Rating

60 Vac Input: 32 Vdc, 15 Adc

120 Vac Input: 63 Vdc, 15 Adc

240 Vac Input: 125 Vdc, 15 Adc

10 Second Forcing Output Rating

60 Vac Input: 50 Vdc, 30 Adc

120 Vac Input: 100 Vdc, 30 Adc

240 Vac Input: 200 Vdc, 30 Adc

Minimum Field Resistance

32 Vdc Application: 2.13 Ω

63 Vdc Application: 4.2 Ω

125 Vdc Application: 8.3 Ω

Regulation

AVR Operating Mode

Accuracy: ±0.25% over load range at rated PF and constant generator frequency

Steady State Stability: ±0.1% at constant load and generator frequency

Temperature Drift: ±0.5% for a 0 to 50°C change

V/Hz Characteristic: Slope from 0 to 3 PU is adjust-able in 0.1 PU increments. Voltage

regulation error is within ±2.0% of the nominal voltage.

Response Time: <1 cycle