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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
Ft1, Ft2, Ft3, Ft4, Pri,
I1 to I2
Mtf, S2A, Man, TOL, TFL, EJP, CTS
O1 to O2
S1A, S2A, LS, /
Input (In2, Ft2) and output (Ou1, S1A) programming example:
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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
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Relay State
NO or NC
NO
PROGRAMMING
Variables description Inputs
Variable
Description
Fault input 1. The fault led is blinking as soon as the input is active and
Ft1
Ft1 is displayed on LCD. Reset when the input is de-activated
Fault input 2. The fault led is blinking as soon as the input is active and Ft2 is displayed on LCD.
Ft2
Reset when the input is de-activated
Fault input 3. The fault led is blinking as soon as the input is active and Ft3 is displayed on LCD.
Ft3
The transfer switch is immediately driven in 0 position.
Keypad action (Esc) necessary to Reset the fault
Fault input 4. The fault led is blinking as soon as the input is active and Ft4 is displayed on LCD.
Ft4
The transfer switch is immediately driven in 0 position.
Keypad action (Esc) necessary to Reset the fault
Priority network selection.
Pri
Network 1 has priority when input is not activated. Network 2 has priority if input is active
Remote manuel re-transfer. Feature identical to manual re transfert on keypad.
Mtf
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
Information source 2 available (Genset) used instead of voltage / frequency measurement
S2A
from ATyS (inhibited when S2A is selected)
Information transfer system in manual mode.
Man
All automatic commands (+ test on load and control commands) are inhibited as soon as the input is activated
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
CtS
the input is activated (1 s front)
Remote test on load. Started from input activation.
tol
Re-transfer is blocked until input de-activation
Remote test off load.
tfl
Started from input activation (remote genset start / stop)
2 inputs one automatically affected to EJP
• input 1 for EJP advice, to start generator
EJP
• input 2 to transfer on emergency source
Retransfer is activated when input 2 disapears
Outputs
Variable
Description
Source 1 available.
S1A
Output activated as soon as source 1 is considered available (similar to front led source 1)
Source 2 available.
S2A
Output activated as soon as source 2 is considered available (similar to front led source 2)
Load shedding relay. LS timer corresponds to time available to disconnect the shed loads.
LS
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
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