Installation and initial operation
01.04.2020
67
4.5.
Fault messages
The central controller carries out internal and external checks. If a fault is
detected, a red exclamation mark appears on the left edge of the display.
1. Tap the red exclamation mark.
A list with all activated faults appears.
2. Tap a fault in order to call up the fault description and the explanation for
troubleshooting.
Troubleshooting
Incorrect configuration is not covered by this fault-finding, mechanical or
hydraulic fault causes must be taken into account.
The following faults could arise after commissioning:
Fault
Cause
Troubleshooting
No image on the
terminal
Fuse has blown.
1. Check fuses.
2. Measure electric potential between pin
1 and pin 12. The electric potential must
be between 9 and 36 V.
Display defective.
1. Order replacement terminal.
No LED illuminated
on the membrane
keyboard
Fuse has blown.
1. Check fuses.
2. Measure electric potential between pin
1 and pin 12. The electric potential must
be between 9 and 36 V.
3. Order replacement terminal.
