Woodward GCP-30 Series User Manual

Manual 37365A GCP-30 Series Packages - Genset Control
© Woodward Page 77/179
"OPEN TRANSIT." Breaker Logic [GCP-32]
Configuring Parameter 111 to " OPEN TRANSIT." enables the MCB and GCB to perform
an open transition
(break-before-make/change over logic) when transferring from the mains to the generator and back.
In the event of an add-on request, the load is transferred from mains to generator supply. The following occurs:
• The MCB is opened
• The GCB is closed
After the add-off request has been issued, the load is transferred from generator to mains supply. The following
occurs:
• The GCB is opened
• The MCB is closed
"EXTERNAL" Breaker Logic
Configuring Parameter 111 to "EXTERNAL" enables the MCB and GCB breaker logic to be controlled from an
external source.
All b
reaker control must be carried out via a master controller such as a PLC. The GCP will only issue opening
and closing pulses to the MCB and GCB when in the MANUAL operating mode. The GCP will always issue a
breaker open command under fault conditions.

Woodward GCP-30 Series Specifications

General

Brand	Woodward
Model	GCP-30 Series
Category	Controller
Language	English