User Manual

Faults / Troubleshooting
9
A6V10393194_e_en_-- 27 | 32
9 Faults / Troubleshooting
If a fault cannot be eliminated with the help of the following information, please
contact the service engineer.
Symbol Status LED Description Possible cause Measures
OFF System not operational
● With a voltage
<DC 20.5 V, batteries
are switched off
automatically
● Check the mains voltage.
● Check fuse F1 in FP120-Z1
power supply kit.
● Check fuse F1 in
FP2015-A1 power supply,
see document
A6V10411051.
ON Mains or battery fault
● Mains voltage
disconnected
● Battery voltage too low
● Batteries disconnected
● Check the mains voltage.
● Check the battery voltage.
● Check the cabling.
● Check fuse F3 in
FP2015-A1 power supply,
see document
A6V10411051.
Status Possible cause Measures
No voltage at AUX 1 or AUX 2
The electronic fuse for overload and
short-circuit has switched.
Check the installation and cabling.
The electronic fuse resets automatically after the cause of
the switch has been
eliminated.