86 ATICS-2-ISO_D00046_04_M_XXEN / 03.2021
Troubleshooting
Error code/service
code
Description Action
8.21 … 8.30 ISOMETER® or transformer monitoring error. • Reset, then execute test of the IT
system
• Check that the current firmware is
installed.
• When no fault is displayed: OK.
Otherwise replace the device.
• Check that the bridge on the output
side is properly installed.
8.22 Temperature sensor is defective or has earth
potential.
Diagnostic:
• Disconnect the temperature sensor
(Z1/Z2).
• When the fault is no longer dis-
played: Replace the temperature
sensor or correct its cable routing.
8.51 … 8.52 Fault internal power supply unit. • RESET -> execute alarm, then test
the changeover function.
• If fault persists: device replacement.
• Only use test set-ups that provide
the necessary peak current of 17 A.
8.61 … 8.66 Fault during changeover process. Occurs
when the voltage on the new line fails dur-
ing the changeover. Also occurs when the
test set-ups do not supply sufficient current
for switching the coils of the ATICS®.
Can also be caused by missing or improperly
installed bridge on the output side.
The fault can also be caused by an (imper-
missible) connection between GND, k or l
and PE.
• Check connection of the bridge
on the output side, if necessary,
re-tighten screws.
• RESET -> execute alarm, then test
the changeover function.
• If fault persists: device replacement.
• Only use test set-ups that provide
the necessary peak current of 17 A.
• In the settings menu 1: Select
changeover t(0) ≥ 160 ms.
• Delete this connection
8.69* Error switching device / energy storage
device
The variant with energy storage device does
not start in position 0
• Check energy storage device and
energy storage device connection
• Perform changeover test. If no error
is displayed: OK
• If error continues to exist: Replace
device
*only for "ES" version of ATICS®
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