Power Walker VFI 1000 TG Bedienungsanleitung Seite 33

SHOR Inverter short
OVTP Over
temperature fault
OVLD Overload
SITE Site fail
EPO EPO active
Please have the following information at hand before calling the After-Sales
Service Department:
1. Model number, serial number
2. Date on which the problem occurred
3. LCD display status, Buzzer alarm status
4. Utility power condition, load type and capacity, environment temperature,
ventilation condition
5. The information (battery capacity, quantity) of external battery pack
6. Other information for complete description of the problem
Output short
circuit
Over temperature
Overload
Phase and neutral
conductor at input
of UPS system
are reversed
EPO function is
enabled
-30-
Remove all the loads.
Turn off the UPS.
Check whether the
output of UPS and
loads is short circuit.
Make sure the short
circuit is removed, and
the UPS has no
internal faults before
turning on again.
Check the ventilation
of the UPS, check the
ambient temperature
and ventilation.
Check the loads and
remove some
non-critical loads.
Check whether some
loads are failed.
Rotate mains power
socket by 180° or
connect UPS system.
Plug into the EPO
switch.