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PROGRAMMING
PROGRAMMING
Refer to automatic transfert switch or controller
instruction manual for terminals identification.
2 inputs (In1, In2) and 2 outputs (Ou1, Ou2) as standard on controller.
Input / Output
Input / Output
Function
Relay State
I1 to I2
Ft1, Ft2, Ft3, Ft4, Pri,
Mtf, S2A, Man, TOL, TFL, EJP, CTS
NO or NC
O1 to O2
S1A, S2A, LS, /
NO
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Step 1: Press “right” push button to make first variable blinking (Ft2 or S1A)
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Step 2: press “top” and “bottom” push buttons to modify the variable
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Step 3: press “validation”
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Step 4: press “bottom” push button to acces nO variable selection
Input (In2, Ft2) and output (Ou1, S1A) programming example:
Variables description Inputs
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.
Keypad action (Esc) 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.
Keypad action (Esc) necessary to Reset the fault
Pri
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 re transfert on keypad.
Re-transfer from priority network to backup network is allowed from input activation (1 s front).
The Mtf variable in the setup menu must be selected (Yes) to allow input recognition
S2A
Information source 2 available (Genset) used instead of voltage / frequency measurement
from ATyS (inhibited when S2A is selected)
Man
Information transfer system in manual mode.
All automatic commands (+ test on load and control commands) 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 (1 s 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 one 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 disapears
Outputs
Variable
Description
S1A
Source 1 available.
Output activated as soon as source 1 is considered available (similar to front led source 1)
S2A
Source 2 available.
Output activated as soon as source 2 is considered available (similar to front led source 2)
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