10 Fault elimination
Maschinenfabrik Reinhausen GmbH 2020278 3587317/21 ENTAPCON
®
Characteristics/details Cause Remedy
Problem with circulating reactive
current minimization parallel oper-
ation method.
Circulating reactive current can-
not be calculated.
Check wiring. Connect as shown in connection
diagram.
Circulating reactive current block-
ing limit exceeded.
Check configuration.
Table123: Parallel operation faults
10.7 Tap position capture incorrect
Characteristics/detail Cause Remedy
Position indicator incorrect.
▪ Leading sign incorrect.
Incorrect wiring. Check wiring.
Connect as shown in connection diagram.
Minimum value of the analog in-
put signal not configured cor-
rectly.
Check parameters.
Position indicator incorrect.
▪ Display fluctuates.
Interference. Shield the line.
Increase distance from source of interference.
Lay interference lines separately.
Route signal in separate lines (filter, shielded
lines).
No position indicator.
▪ "- -" is displayed.
No measurement signal.
No L- for digital input.
Connect signal as shown in connection dia-
gram.
Check wiring.
Connect as shown in connection diagram.
No position indicator.
▪ "?" is displayed.
Bit combination (code) impermis-
sible.
Check wiring.
"Motor running" signal present. Check the signal sequence.
Tap position capture over resistor
contact series faulty.
Faulty calibration. Calibrate tap position capture over resistor con-
tact series.
Modified contact resistance val-
ues of the resistor contact series
(e.g. due to weather or age).
Calibrate tap position capture over resistor con-
tact series.
Table124: Tap position capture
10.8 Assemblies
Consult the following table to check whether individual assemblies have a
malfunction.
Assembly Characteristics/details Cause Remedy
UI 1/UI 3 RDY LED (yellow) does
not light up
No communication with assembly
possible.
Contact Maschinenfabrik Rein-
hausen GmbH.
RDY LED (yellow) flashes An error was detected in the as-
sembly.
Contact Maschinenfabrik Rein-
hausen GmbH.
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