11 Fault elimination
Maschinenfabrik Reinhausen GmbH 2022
150
8595017/00 EN
TAPCON
®
250
Characteristics/details
Cause
Remedy
Bandwidth set too high
-
Determine the recommended bandwidth.
Parallel operation active.
Device is follower in parallel oper-
ation.
No error. If necessary, deactivate parallel opera-
tion.
CAN bus communication failure
"Auto blocking" behavior is set.
Check configuration.
Table 44: No regulation in AUTO mode
11.3 Unwanted on-load tap-change operation
Characteristics/detail
Cause
Remedy
Compensation activated
Setting:
▪ R-X compensation
▪ Z compensation
Check parameters.
Correct if necessary.
Table 45: Unexplained tap change
11.4 Human-machine interface
Display
Characteristics/details
Cause
Remedy
▪ No display.
Power supply interrupted.
Check the power supply.
Fuse faulty.
Contact Maschinenfabrik Reinhausen.
Maximum permissible operating
temperature of 80°C exceeded.
Allow the device to cool down.
No display and voltage supply
LED flashing red
Maximum permissible operating
temperature of 70°C exceeded.
Allow the device to cool down.
Set screensaver waiting time to 15 minutes.
Connection to the visualization
cannot be established.
Connection cable defective.
Check connection cable.
SSL certificate warning.
SSL certificate of the display and
of the ISM do not match / SSL
certificate has expired.
Accept SSL certificate in browser.
Upload correct server certificate to the display.
Deactivate SSL encryption.
Table 46: Display
Summary of Contents for TAPCON 250
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