MR TAPCON 250 - Unwanted on-load tap-change operation; Human-machine interface

11 Fault elimination
Maschinenfabrik Reinhausen GmbH 2022174 8595028/00 ENTAPCON
®
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49: 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50: 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51: Display