socomec ATyS C55 - Return to 0; Load Control (C65 Only)

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ATySController C55/65 - 549866C - SOCOMEC
Note: in-phase transfer is only available for I-II switches, selected technology must be ATyS FT, this function cannot
be enabled when using other technology.
14.2.3. Return to 0
This function allows the switch to go to center-off position (only typologies with 0 or center-off position) when the current
connected source is lost or not available (supply to the load is not good enough due to undervoltage, phase lost, overvoltage,
frequency out of limits,…). It can be used to avoid providing bad quality energy to the loads but also to avoid the power
ramp and transients that may occur before the source is stable to go to the loads, as some loads might be sensitive to these
events.
Associated timer to congure:
- RETURN TO 0 : Status of the function, user can choose when to activate the function DISABLED / ALWAYS ENABLED /
FROM PRIORITY SOURCE / FROM SECONDARY SOURCE
- S1 / S2 RETURN TO 0 (s): time to wait before going to center-off / zero position after losing a source. (starts counting at
same time than the failure timer)
Note: this function will only work if both the switch and the controller are still supplied (by an external source, UPS
or others, independent from the emergency and normal source).
If the typology of the switch (technology) doesn’t allow the function, a message will pop up as follows:
14.2.4. Load control (C65 only)
The load control signal is used to communicate to the elevator control panel in buildings, or other loads, that the controller is
ready to perform a transfer.
The function has 2 main parameters to be set on the function menu, the pre-transfer timer (time before sending the order to
transfer to the switch, when the load control output will become active) and the post-transfer timer (time after achieving the
transfer to the other source, when the load control will be cleared, not active).
To be able to use the load control signal function, it is required to congure an output as ELV – LOAD CTRL output in the
PARAMETERS / I/O / I/O CONFIG menu.