Woodward LS-5 v2 Series - Discrete Inputs

4.5.2
Discrete Inputs
General notes
Discrete inputs may be con󰈡gured to normally open (N.O.) or normally closed (N.C.)
states.
Fig. 80: Discrete inputs - alarm/control inputs - operation logic (state N.O.)
In the state N.O.:
•
No potential is present during normal operation.
• If an alarm is issued or control operation is performed, the input is energized.
Fig. 81: Discrete inputs - alarm/control inputs - operation logic (state N.C.)
In the state N.C.:
• A potential is continuously present during normal operation
• If an alarm is issued or control operation is performed, the input is de-energized.
All reply messages from breakers are evaluated as N.C..
Alarm inputs may also be
con󰈡gured as control inputs and then be used as command
variables in the LogicsManager.
Discrete input 8 is always used for the circuit breaker reply 'CBA is open' and cannot be
con󰈡gured.
Discrete input 5 is always used for the circuit breaker reply 'CBB is open' and cannot be
con󰈡gured.
Internal discrete inputs - terminal assignment
Number Terminal Assignment (all application modes)
[DI 01] 44 Alarm input (LogicsManager); pre-con󰈡gured for lock monitoring 'Lock monitoring'
[DI 02] 45 Control input (LogicsManager); pre-con󰈡gured for external acknowledge 'External
Ackn.'
[DI 03] 46 Alarm input (LogicsManager); pre-con󰈡gured for open CBB (with unloading) 'Open
CBB'
187LS-5 v2 Series37650
4 Con󰈡guration
4.5 Inputs And Outputs
Released