62
Fault
code
Fault type Possible fault cause Solutions
When reverse running is prohibited,
reverse rotating auto-tuning is
performed.
Cancel the reverse running prohibition
Auto-tuning overtime
Check motor wiring
Check the P02.16 (upper limit frequency) and see
whether the P02.17 set value is lower than rated
frequency.
Er.PG1 PG fault
With PG vector control (or with PG V/F
control), the encoder signal
disconnects.
Check the encoder wiring and rewiring
Er.PST
Parameter
setting error
Wrong speed feedback encoder
selection setting
The same speed feedback encoder shall not be
used for two motors simultaneously.
Wrong analog AI function selection
setting
The same function shall not be selected for different
analogs simultaneously.
Process closed loop invocation setting
error
During vector control, the torque limit (P05.13，
P05.14) and frequency reference (P02.04 or PLC
section frequency reference) can not be given by
the process closed loop simultaneously.
Lifting application type error
Lifting application type that is P00.07 = 2 for
non-vector control mode
Er.24v
Control board
24V power short
circuit
Short circuit of P24 and terminal COM
Confirm whether the wiring of P24 and COM is
correct
The interface board circuit is damaged.
Replace the interface board, seek for service
support
Er.oPT
Expansion card
fault
The expansion card is poorly inserted. Reinsert the expansion card
The expansion card is damaged. Seek for service support
Er.GdF
Grounding short
circuit fault
One of the phases (The most likely one
is phase U) is grounding short circuited.
Check the grounding short circuit of the output
three phase and troubleshoot it.
Er.dEv
Too large speed
deviation (DEV)
fault
ASR parameters are improper. Modify the setting of the group P05 function code
DEV deviation detection value setting is
too low.
Modify the DEV detection value setting
Heavy load fluctuation Eliminate the load vibration
Er.oHL
Motor
over-temperature
The ambient temperature is too high. Lower the ambient temperature
The motor duct is blocked. Clean the motor duct
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