Manual 37143A
MFR 15 - Protection Relay & Control
© Woodward
Page 17/119
Auxiliary and Control Outputs
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Relay Outputs
A
B
Relay output
Relay output
external device
external device
external device
C
D
E
max. 250 V AC
Figure 3-9: Relay outputs
Description
Form A contact
A
max
main make
A B
9
10
Relay 1 (ready for operation)
2.5 mm²
Form C contact
make main break
C D E
11 12 13
Relay
2
2.5
mm²
14 15 16
Relay
3
2.5
mm²
27 28 29
Synchronization
(pulse/holding relay)
Option Y
2.5
mm²
Pulse Output (
Option M
)
B
A
Pulse output
Open collector
+
-
24 V DC
R > 1 kOhm
V
Figure 3-10: Pulse output
Terminal Description
A
max
A 60
B 61
Pulse output (Open Collector)
2.5 mm²