socomec ATyS C25 - Phase Rotation Check; Voltage;Frequency Levels Configuration; Timers; Fail Timers and Return Timers

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ATySController C25 - 549780A - SOCOMEC
15.3. Phase rotation check
When both sources are available the controller will check that both sources have the same phase rotation.
If the two sources have different phase orders the source LED (1 & 6) will blink , the fault LED will light up and the
sources will be considered as not available (switch will not transfer from the current position to the opposite source).
If only 1 source is available the product will not check the phase rotation order.
15.4. Voltage/Frequency Levels conguration
Voltage and frequency levels can be congured through communication or DIP switch (DIP switch 4).
Conguration through DIP switch
The DIP switch conguration allows setting the voltage and frequency limits to 10% of nominal vol-
tage & 5% of nominal frequency or 20% of nominal voltage & 5% of nominal frequency.
In both cases the hysteresis is 20 % of the selected value. The default value for nominal voltage is
230 V.a.c and the default value for nominal frequency is 50Hz.
To reboot the product press the button for 30s, this will restart the product and take into account any changes
on the DIP switches (even if the controller was in AUTO mode at the time of restart). In case of a conguration change
the controller Buzzer will beep twice.
15.5. Timers
15.5.1. Fail timers and Return timers
Source failure timers FT and source return timers can be congured using the DIP switches.
The source fail timer FT is the time during which the source can be outside the voltage and frequency threshold
before it is considered lost. (cf. graph below)
The source return timer is the time for which the source must be within the voltage and frequency threshold before
it is considered available. (cf. graph below)
If only one source is present, the controller will give the order to switch to this source before the return timer has
nished counting.
Source available
Start FT
+ΔU/ΔF
[Hyst]
[Hyst]
-ΔU/ΔF
V
n 230 V a c L/N
Un 400 V a c L/
L
Fn 50Hz
Start RT Start FT Start RT
T