51
EN
Troubleshooting
Safety
Indicated errors Overtemperature
"hot" appears on the display, the temperature indicator lights up
+
Cause: Device is too hot
Remedy: Check/reduce ambient temperature, allow power source to cool down
Undertemperature
"cold" appears as scrolling text on the display, the temperature indicator lights up
+
Cause: Device temperature too low
Remedy: Check/increase ambient temperature, operate the power source in a warmer
environment
For more information see the Operating environments section on page 56
Deep discharge protection
"Lo" appears in the display, the "Battery capacity" indicator flashes
+
Cause: Battery discharged, deep discharge protection has been activated
Remedy: Charge the battery now
Battery operation is possible again above 25% capacity
WARNING! Work that is carried out incorrectly can cause serious injury or dam-
age. All the work described below must only be carried out by trained and quali-
fied personnel. Do not carry out any of the work described below until you have
fully read and understood the following documents:
- this document
- all the operating instructions for the system components, especially the safe-
ty rules
WARNING! An electric shock can be fatal. Before starting the work described be-
low:
- Turn the power source mains switch to the "O" position
- Disconnect the power source from the mains
- ensure that the power source remains disconnected from the mains until all
work has been completed
WARNING! Improper handling can cause injuries or damage. Do not open the
power source.
The power source may only be opened by a Fronius service engineer.
If you need a replacement battery, hand the power source over to a Fronius Ser-
vice Partner.
CAUTION! Deep discharge can destroy the battery. Do not store the battery
when it is in this state
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