Chapter 7 Faults and solutions
138
P9-60 are unreasonable.
3. Set the detection parameters
according to the actual
conditions.
Motor
overspeed
failure
Err43
1. Encoder parameter setting
is incorrect
2, no parameter identification
3. The parameters P9-69 and
P9-60 are unreasonable.
1, set the encoder parameters
correctly
2. Perform motor parameter
identification
3. Set the detection parameters
reasonably
Motor over
temperatur
e fault
Err45
1, the temperature sensor
wiring is loose
2, the motor temperature is
too high
1, detecting temperature sensor
wiring
2. Reduce the carrier frequency
or take other heat dissipation
measures to dissipate the
motor
Initial
position
error
Err51
The motor parameters are too
different from the actual
deviation
Check if the motor parameters
are correct and pay attention to
whether the rated current is set
too small.
7-2 Common faults and solution
The following fault conditions may be encountered during the use of the inverter. Please
refer to the following method for simple fault analysis
Table 8-1 Common faults and solutions
N
o.
Fault
phenomenon
Possible Causes
solutions
1
No display
after power
on
The grid voltage is not or too low;
The switching power supply on
the inverter drive board is faulty;
The control board is
disconnected from the driving
board and the keyboard;
Check the input power or bus
voltage;
Re-insert 8-core and 34-core cable;
Seek factory services;
