Manual 37128A GCP-20 Series - Genset Control
© Woodward Page 63/190
10 [GCP-20/22] MCB on
[GCP-21] Mains parallel
Color: green
Reply: MCB is closed / Mains parallel
[GCP-20/22] Items with two power circuit breakers: The "MCB ON" LED
indicates that the mains power circuit breaker is closed.
[GCP-21]..... Items with one power circuit breaker or items which have
been made into 1-CB items via external wiring: The "Mains
parallel" LED indicates that the genset is operating in parallel
with the mains.
11 GCB on
Color: green
Reply: GCB is closed
The "GCB ON" LED signals that the GCB is closed.
12 Genset rotating
Color: green
Reply: genset / engine is rotating
If this LED is blinking, the ignition speed has been exceeded. As soon as the
speed reaches the frequency band, i.e.±3 % of the preset rated frequency, the
LED lights continuously.
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