Manual 26086 EGCP-2 Engine Generator Control Package
Woodward 87
Assuming a New Master—All Units Off Load
When a unit’s priority is changed in such a manner as to make it the new master
on the system, the response of the system to the change of masters depends on
the operating state of the system at the time the change is made.
If the system is not on load and the engines are not running, and has not
experienced, or is not configured for a loss of mains condition, then switching the
priority of the master will have the following effect on the system:
After a maximum of 5 minutes, the Master indication in the Sequencing Status
screen will indicate the new master unit.
Shortly after this occurs, the new Master’s Sequencing Status screen will re-
order the Next On and Next Off slave units to fit the new system priority
configuration.
No units will start or go on load under these conditions as a result of the
assumption of the new master. See Figure 4-10.
MAINS
NETWORK ADDRESS #2
NETWORK PRIORITY #2
NO MAINS FAILURE DETECTED
ADDRESS: 1 2 3
OPER.
PRIORITY 1 2 3
MASTER 1
NEXT ON ALL
NEXT OFF
MASTER SEQUENCING SCREEN
NETWORK ADDRESS #1
NETWORK PRIORITY #1
G G
SYSTEM LOAD = %
NETWORK ADDRESS #3
NETWORK PRIORITY #3
G
ALL GENERATORS OFF LOAD
VIS-115
00-04-27
Figure 4-10. Original System Configuration
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