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oPeratIon
oPeratIon
Programming
Programming
>
Inputs / Outputs Menu
1 2
inputs
• eJP cycle
>
Inputs / Outputs Menu
1 2
outputs
Dtt timer
ls timer
Priority source -
emergency source
transfer
LS relay Activation
Emergency source
- priority source
transfer
ls timer
In case of LS function selection, it is required to configure associated LS timer.
• example :
LS configuration (output relay Ou1, 3 seconds):
• load shedding cycle
1 2
1 2
Position II (emergency) AC activation
the load shedding can’t be used with the priority net-
work (priority source = source ). In this case, LS
output is not valid.
Variable
Description
Ft1
Fault input 1. the fault led is blinking as soon as the input is active and
Ft1 is displayed on LCD. Reset when the input is de-activated
Ft2
Fault input 2. the fault led is blinking as soon as the input is active and Ft2 is displayed on
LCD. Reset when the input is de-activated
Ft3
Fault input 3. the fault led is blinking as soon as the input is active and Ft3 is displayed on
LCD. the transfer switch is immediately driven in 0 position (only in contactor mode). Keypad
action (Validation) necessary to Reset the fault
Ft4
Fault input 4. the fault led is blinking as soon as the input is active and Ft4 is displayed on
LCD. the transfer switch is immediately driven in 0 position (only in contactor mode). Keypad
action (Validation) necessary to Reset the fault
Pri
(1)
Priority network selection.
Network 1 has priority when input is not activated. Network 2 has priority if input is active
Mtf
Remote manuel re-transfer. Feature identical to manual retransfer on keypad.
Re-transfer from priority network to backup network is allowed from input activation (1s front).
the Mtf variable in the setup menu must be selected (Yes) to allow input recognition
S2A
Information source
available (Genset) used instead of voltage / frequency measurement
(inhibited when S2A is selected)
Man
Information transfer system in manual mode
All automatic commands (+ test on load) are inhibited as soon as the input is activated
CtS
Remote transfer control. Possible to initiate transfer from priority source to backup source
before Dtt ends. If Dtt is set to its maximum value (60s), the transfer is initiated as soon as
the input is activated (1s front)
tol
Remote test on load. Started from input activation.
Re-transfer is blocked until input de-activation
tfl
Remote test off load
Started from input activation (remote genset start / stop)
EJP
2 inputs are automatically affected to EJP
• input 1 for EJP advice, to start generator
• input 2 to transfer on emergency source
Retransfer is activated when input 2 dissapears
Variable
Description
S1A
Source
available.
Output activated as soon as source
is considered available (similar to front led source
)
S2A
Source available.
Output activated as soon as source is considered available (similar to front led source )
LS
Load shedding relay. LS timer corresponds to time available to disconnect the shed loads.
the relay is activated before permutation on standby network according to LS timer.
the relay is de-activated after retransfer on mains network and LS timer countdown
(1) this information is the only considered in case of
option configuration. Programming variable Pri is then
inhibited.
the output is de-activated in case of loss of power. It may then be required to put in
parrallel with the load shedding ouptut relay, position 2 auxiliary contact. this would avoid
taking back the load in case of loss of emergency source in emergency position.
Output
Function
Setting range
Default Value
1 2
1 2
S1A, S2A, LS, /
For LS:
0 to 60 s (
≤
Dtt)
For LS :
3 s
CDT
EJP advice (input 1)
EJP transfer (input 2)
Start generator
DTT
Source 1
Source 2
OMF
OMR
LS
AC II
Load shedding output