Manual 26076 EGCP-2 Engine Generator Control Package
Woodward 39
25
Discrete
Output #9
27
26
Mains
Breaker
Trip
VIS-154d
01-06-01
EGCP-2
+ V
Mains
Breaker
Trip (Open) Coil
Figure 3-21. 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 when the EGCP-2 is:
1. In the “AUTO” mode (Discrete Input #1)
2. And the Generator is stable (Generator Stable Delay time has been
achieved)
The EGCP-2 will DE-ENERGIZE to open the Generators Breaker. The output will
stay de-energized until the “AUTO” and Generator stable conditions are met.
When operating in the Manual mode, it is required to externally control the
Generators Breaker. The EGCP-2 will continuously be providing a Generator
Breaker open command. This means the EGCP-2 will have no control over
opening the generators breaker once it has been closed manually. See Chapter
8 for Manual operation details.
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