Woodward LS-5 v2 Series - Configure CBA

• 8804 Connect A alive to B dead On/O󰈠
Function
A close CBB command without synchronization is issued, if the following conditions are
ful󰈡lled simultaneously:
• Dead bus closure CBB function is con󰈡gured to ON
•
LM "Enable to Close CBB" is TRUE
• LM "Enable to Close CBA" is FALSE
• Discrete input "Reply CBB is open" is set
•
No CB blocking alarm is triggered
• No easYgen is trying to carry out a dead busbar closure
• No higher prioritized LS5 is trying to close its breaker
• The con󰈡gured dead busbar closure mode matches the real conditions
Priority during Breaker Closure
The simultaneous dead busbar closure of CBA and CBB is not allowed!
In an emergency application the simultaneous closing of two circuit breakers is blocked
via communication between the LS-5(s) and the easYgen(s). Once an easYgen is enabled
to for a dead bus closure connection it has priority over all LS-5s (any CB controlled by an
LS-5 cannot be closed). If multiple LS-5s are enabled to close a circuit breaker at the
same time the LS-5 with the lowest CAN identi󰈡cation number receives the master status
and transmits the set point signals to the genset control (all other LS-5s then are inactive)
4.4.2.3 Con󰆟gure CBA
ID Parameter CL Setting range
[Default]
Description
8800 CBA control 2 1 Relay A CBA is operated and if necessary
monitored. Relay [R5] (38/39/40) is
used and 󰈡xed to this function.
[2 Relays] A CBA is operated and if necessary
monitored. Relay [R5] (38/39/40) is
used for the open function, relay [R6]
(41/42) to close it. The opening and
closing is carried out with the pulse
method.
3417 CBA time pulse 2 0.10 to 0.50 s
[0.50 s]
Breaker pulse duration to close the
CBA..
157LS-5 v2 Series37650
4 Con󰈡guration
4.4 Con󰈡gure Application
Released