7. Troubleshooting
User Manual
38
OV-G-F01
UN-G-F01
G-PHASE
G-F-GLU
NO-Grid
OV-G-V02
OV-G-V03
IGFOL-F
OV-G-V05
OV-G-V04
UN-G-V02
OV-G-F02
UN-G-F02
NO-Battery
Grid frequency exceeds the
upper frequency range
Grid frequency exceeds the
lower frequency range
Unbalanced grid voltage
Grid voltage frequency
fluctuation
Grid transient overvoltage
Grid transient overvoltage
Grid current tracking failure
Grid voltage RMS instanta-
neous overvoltage fault
Grid voltage exceeds the
upper voltage range
Grid voltage exceeds the
lower voltage range
Grid frequency exceeds the
upper frequency range
Grid frequency exceeds the
lower frequency range
Battery is not connected
UN-G-V01
Grid voltage exceeds the
lower voltage range
OV-G-V01
Grid voltage exceeds the
upper voltage range
Surge Alarm
On-site grid surge
1. Grid side fault, restart the device.
If it is still not eliminated, please contact the
manufacturer's customer service.
1. Confirm whether the power grid is abnormal.
2. Confirm that the AC cable is properly
connected.
3. Restart the system and check if the fault
persists.
1. Restart the system, confirm if that the fault
continues.
1. Check on information page 1 – Verify the
battery voltage is within standards.
2. Measure battery voltage at plug.
No grid
1. Confirm whether the power grid is abnormal.
2. Confirm that the AC cable is properly
connected.
3. Restart the system and check if the fault
persists.
Message Name
Information Description
Troubleshooting Suggestion
OV-Vbackup
Over-Load
Inverting overvoltage
Load overload fault
1. Check whether the backup port wiring is
normal
2. Restart the system, confirm that the fault
continues.
1. Backup load power is too large, or some
inductive load startup power is too large,
need to remove some backup load, or remove
the inductive load on the backup.
