Fault state
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Procedure for fault rectification
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Transfer switching equipment is off, no LED illuminated.
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Check that the main circuit is connected on the underside of the transfer switching equipment if the motor operator is mounted
on the right. If the device was mounted the other way around and the motor operator is on the left, the main circuit must
be connected on the top of the transfer switching equipment.
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Check the supply voltages at the upper openings of the box terminals between terminals 1 and 7 (176 - 288 V AC) for sources
I and II. The required supply voltage must be present between terminals 1 and 7 on at least one source (I or II) to ensure
the power supply of the transfer switching equipment.
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The "Auto" LED must normally be illuminated when the cover is closed.
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Source I is available; the LED to indicate availability of source I is not illuminated however.
or
Source II is available; the LED to indicate availability of source II is not illuminated however.
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Repeat the autoconfiguration of the transfer switching equipment and then close the cover.
All LEDs must light up briefly during autoconfiguration. If this is not the case, contact Technical Support.
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Check the limit values for voltage and frequency on the DIP switch (C-D).
Set these to the maximum values (DIP switch in position D) and reduce the value if necessary once the fault has been rectified.
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Check the following conditions:
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Network type: Either a three-phase 4-wire network with neutral conductor (3PH + N) or a three-phase 3-wire network without
neutral conductor (3PH) with two transformers must be connected.
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Check the supply voltage and frequency at the upper openings of the box terminals between terminals 1 and 7.
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Nominal voltage: This must be between 176 and 288 V AC.
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Nominal frequency: This must be between 45 and 65 Hz.
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After the loss of the prioritized source, the transfer switching equipment is off and no LED is illuminated.
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Check the supply voltage at the upper openings of the box terminals between terminals 1 and 7 (176 - 288 V AC) for the alternative
source (e.g. source II).
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The "Auto" LED must normally be illuminated when the cover is closed, provided one of the two sources is available.
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The transfer switching equipment does not transfer following failure of the prioritized source.
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Check that the cover of the transfer switching equipment is closed. Only then the transfer switching equipment is in automatic
mode.
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Check that automatic mode is not deactivated, that is, that contact 210 is not connected to control terminal 207.
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Check that contact 208 (switching command for position 0) is not connected to control terminal 207.
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Check that the alternative source is available and that the associated LED to indicate source availability is illuminated.
If the fault state "Source x is available; the LED to indicate availability of source x is not illuminated however" is active,
follow the procedure described above to rectify the fault.
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Check the setting on the potentiometer for transfer time delay for source failure. This time delay can be set between 0 and
30 s and the transfer switching equipment does not transfer until this timer has expired. The LEDs to indicate source availability
flash during this time.
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The transfer switching equipment does not perform the return transfer to the prioritized network when it becomes active again.
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Check that the cover of the transfer switching equipment is closed. Only then the transfer switching equipment is in automatic
mode.
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Check that automatic mode is not deactivated, that is, that contact 210 is not connected to control terminal 207.
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Check that contact 208 (switching command for position 0) is not connected to control terminal 207.
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Check that the prioritized source is available and that the associated LED to indicate source availability is illuminated.
If the fault state "Source x is available; the LED to indicate availability of source x is not illuminated however" is active,
follow the procedure described above to rectify the fault.
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Check that the priority is active on the fourth DIP switch (position G).
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Check that the selection of the prioritized source is correct on contacts 207 and 209.
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Check the setting on the potentiometer for transfer time delay for prioritized source recovered. This time delay can be set
between 0 and 30 minutes and the transfer switching equipment does not transfer until this timer has expired. The LEDs to
indicate source availability flash during this time.
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Values set on the DIP switch and on the potentiometer are not applied.
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The warning LED flashes.
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If the transfer switching equipment has been operated more frequently than 10 times in one minute, it changes to the protection
function. In this case, the transfer switching equipment is not available for one minute and the warning LED flashes. It then
resets itself and the warning LED is extinguished.
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The warning LED flashes for a few seconds during autoconfiguration.
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Under normal circumstances, the warning LED must be off.
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The warning LED is illuminated.
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Check that contact 208 (switching command for position 0) is not connected to control terminal 207. If this is the case, the
transfer switching equipment is in a fault state. Perform the following steps in order to rectify the fault state and reactivate
automatic mode:
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Open the connection between pins 207 and 208 and
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Open the cover and close it again, or connect pin 207 to pin 210 for > 2 seconds and then disconnect it again (also possible
via remote operation).
After this, the warning LED must be extinguished and automatic mode must be reactivated as soon as the cover is closed.
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Under normal circumstances, the warning LED must be off.
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"Auto" LED is not illuminated.
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The "Auto" LED indicates automatic mode. The transfer switching equipment is in automatic mode when the cover is closed and
input 210 (inhibition of automatic mode) is open.
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Check that the cover of the transfer switching equipment is closed. Only then the transfer switching equipment is in automatic
mode and the "Auto" LED is illuminated.
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Check that automatic mode is not deactivated, that is, that contact 210 is not connected to control terminal 207.
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The "Auto" LED is also extinguished after autoconfiguration, as settings have been carried out on DIP switches A‑B. The "Auto"
LED does not light up until the cover has been closed, or opened and closed again.
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Check that the transfer switching equipment is supplied with power, that is, that at least one connected source is available
(can also be seen from the LED to indicate availability).
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If the fault state "Source x is available; the LED to indicate availability of source x is not illuminated however" is active,
follow the procedure described above to rectify the fault.
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The "Auto" LED flashes
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LED availability of source I and II flashes
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The LEDs flash for a few seconds during autoconfiguration.
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The LEDs for source availability flash while the timers on the transfer switching equipment are counting down to 0. The timers
are set on the potentiometer (0 to 30 minutes).
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