Woodward EGCP-2 - Figure 4-17. Changing the Priority of a Slave Unit; Figure 4-18. Changing the Priority of a Slave Unit

EGCP-2 Engine Generator Control Package Manual 26086
92 Woodward
Changing the Priority of a Slave Unit—Slave On Load
Case 2 will occur if the slave unit is not running, and no Loss of Mains detection
has occurred, and the slave’s priority is increased (taken to a lower numerical
value) to a level which replaces another slave which is operating on load.
MAINS
MAINS FAILURE DETECTED
OR RUN WITH LOAD AT MASTER
NEXT ON 3
G
NETWORK ADDRESS #1
NETWORK PRIORITY #1
NEXT OFF 2
NETWORK PRIORITY #2
NETWORK ADDRESS #2
G
ADDRESS: 1 2 3
MASTER 1
MASTER SEQUENCING SCREEN
PRIORITY 1 2 3
OPER. X X
SYSTEM LOAD = 50%
NETWORK PRIORITY #3
NETWORK ADDRESS #3
G
VIS-122
00-04-27
Figure 4-17. Changing the Priority of a Slave Unit
The figure above represents system on load on an isolated bus in load sharing.
The master unit has sequenced on the priority 2 slave unit. System load is at
50%.
MAINS
MAINS FAILURE DETECTED
OR RUN WITH LOAD AT MASTER
NEXT ON
G
NETWORK ADDRESS #1
NETWORK PRIORITY #1
NEXT OFF 2
NETWORK PRIORITY #3
NETWORK ADDRESS #2
G
ADDRESS: 1 2 3
MASTER 1
MASTER SEQUENCING SCREEN
OPER. X X X
PRIORITY 1 3 2
SYSTEM LOAD = 50%
NETWORK PRIORITY #2
NETWORK ADDRESS #3
G
VIS-123
00-04-27
Figure 4-18. Changing the Priority of a Slave Unit