Maintenance&Trouble Shooting
26
Device Fault
Inner Warnning
Grounding is abnormal
or the ground wire is
disconnected.
• Check whether the ground wire of the
inverter is properly connected and the
ground impedance is too high, if it is,
make corrections
.
• Power off, then restart (Ref. Chapter6)
• If fault still occurs continuously and
frequently, please ask help for local
distributors.distributors.
Fan Fault
The fan can not work
when is started up.
• Check if there is objects which blocking
the fan rotation and remove it.
• Power off, then restart (Ref. Chapter6)
• If fault still occurs continuously and
frequently, please ask help for local
distributors.
Eeprom Fault
Eeprom abnormal
System Fault
Type of Fault
Name
Description
Recommend Solution
Consistent Fault
The detection results of
the two CPUs for the
same voltage and
frequency are different.
Self Lock
Inverter is locked at the
waiting interface.
Grid Volt AD
Grid voltage AD value
deviation is too high,
beyond the protection
range.
• Power off, then restart (Ref. Chapter6)
• If fault still occurs continuously and
frequently, please ask help for local
distributors.
Main CPU to HMI
abnormal
Communication
Lose
CPU to Flash abnormal
CPU to Eeprom abnormal
Main CPU to auxiliary
abnormal