MR TAPCON 250 Instructions D'installation page 82

Characteristics/details
No function
▪ Power supply LED does not
light up
No function
▪ AVR STATUS LED does not
light up
Relay chatter
Table 15: General faults
Characteristics/detail
Compensation activated
Table 16: Unexplained tap change
Characteristics/details
▪ No display.
No display and voltage supply
LED flashing red
Connection to the visualization
cannot be established.
SSL certificate warning.
Table 17: Display
®
82 TAPCON 250
9 Fault elimination
9.1 General faults
Cause
No power supply.
Fuse tripped.
Configuration error
No connection to display.
High EMC load.
Poor grounding.
9.2 Unwanted on-load tap-change operation
Cause
Setting:
▪ R-X compensation
▪ Z compensation
9.3 Human-machine interface
Display
Cause
Power supply interrupted.
Fuse faulty.
Maximum permissible operating
temperature of 80°C exceeded.
Maximum permissible operating
temperature of 70°C exceeded.
Connection cable defective.
SSL certificate of the display and
of the ISM do not match / SSL
certificate has expired.
Remedy
Check the power supply.
Contact Maschinenfabrik Reinhausen GmbH.
Contact Maschinenfabrik Reinhausen GmbH.
Check connection to the display.
Use shielded cables or external filters.
Check the functional ground.
Remedy
Check parameters.
Correct if necessary.
Remedy
Check the power supply.
Contact Maschinenfabrik Reinhausen.
Allow the device to cool down.
Allow the device to cool down.
Set screensaver waiting time to 15 minutes.
Check connection cable.
Accept SSL certificate in browser.
Upload correct server certificate to the display.
Deactivate SSL encryption.
8741483/02 EN
9 Fault elimination
Maschinenfabrik Reinhausen GmbH 2022