Manual 26174 EGCP-2 Engine Generator Control Package
Woodward 45
25
Discrete
Output #9
27
26
Mains
Breaker
Trip
VIS-154d
01-06-01
EGCP-2
+ V
Mains
Breaker
Trip (Open) Coil
Figure 3-22. Example Using the NO Contacts to Control the Mains Breaker Trip
(Open) Coil (ENERGIZE TO OPEN)
Discrete Output #10—Generator Breaker Trip (Open)
With the relay de-energized, this output has Normally Open (NO), terminals 28
and 29, and Normally Closed (NC), terminals 29 and 30, contacts to select from.
The “Generator Breaker Trip (open)” relay output is utilized by the EGCP-2 to
command the Generator Breaker to open. The relay output will DE-ENERGIZE to
open the Generator Breaker. This output is operational when configured for use
with a BREAKER, in the Configuration menu under “CKT Breaker Control”.
If configured for Contactor, see Discrete Output #2 for Generator Contactor
open/close operation.
Breaker
In the Breaker configuration, the “Generator Breaker Trip (open)” relay will
energize with the EGCP-2 in Auto or Manual modes:
Automatic Mode
1. In the “AUTO” mode (Discrete Input #1)
2. If a LOMs start is initiated
a. And the Generator is stable (Generator Stable Delay time has been
achieved)
3. If the Run w/Load switch is closed
a. And the Generator is stable (Generator Stable time has been achieved)
4. The “Auto” with “Test” mode will NOT energize the “Generator Breaker Trip
(open)” relay
Manual Mode
1. “Run w/Load” mode (Discrete Input #3)
a. And the Generator is stable (Generator Stable Delay time has been
achieved)
2. “Test” mode will NOT energize the “Generator Breaker Trip (open)” relay
The EGCP-2 will DE-ENERGIZE to open the Generators Breaker. The output will
stay de-energized until one of the two conditions is met.
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