Woodward DSLC-2 - Figure 2-29: Relay Outputs; Relay Outputs; Table 2-20: Relay Outputs - Terminal Assignment

Manual 37443A DSLC-2 - Digital Synchronizer and Load Control
© Woodward Page 43/226
Relay Outputs
Figure 2-29: Relay outputs
Terminal
Description
A
max
Term.
Com.
A
B
Form A, N.O. make contact
Type

42 41 Relay output [R 01] {all} Alarm (Self Test OK) N.O. 2.5 mm²
43
46
Relay output [R 02] {all} Load Switch N.O. 2.5 mm²
44 Relay output [R 03] {all} High Limit N.O. 2.5 mm²
45 Relay output [R 04] {all} Low Limit N.O. 2.5 mm²
48 47 Relay output [R 05] {all}
Breaker Open
*1
N.O. 2.5 mm²
50 49 Relay output [R 06] {all} Breaker Close N.O. 2.5 mm²
52 51 Relay output [R 07] {all} Centr. Alarm N.O. 2.5 mm²
54 53 Relay output [R 08] {all} Alarm 1 N.O. 2.5 mm²
56 55 Relay output [R 09] {all} Alarm 2 N.O. 2.5 mm²
57
60
Relay output [R 10]
{all}
Alarm 3
N.O.
2.5 mm²
58 Relay output [R 11] {all} Voltage Raise N.O. 2.5 mm²
59 Relay output [R 12] {all} Voltage Lower N.O. 2.5 mm²
N.O.-normally open (make) contact
*1
= inverted relay
Table 2-20: Relay outputs - terminal assignment
CAUTION
The discrete output "Alarm (Self Test OK)" can be wired in series with an emergency stop function.
This means that it must be ensured that the generator circuit breaker can be opened, if this discrete
output is de-energized. We recommend to signal this fault independently from the unit if the availability
of the plant is important.
NOTE
The relay output [R 05] “Breaker Open” opens the breaker by opening the contacts. The contacts are
closed if the generator voltage and frequency are in operating range and no open command is active.