195
according to the nameplate
2. Parameter tuning process timeout
according to the name plate
2. Check the lead from inverter to
motor
1. Encoder model mismatch
2. Encoder connection error
3. Encoder damaged
4. Abnormal PG card
1. Set encoder type correctly
2. Remove circuit fault
3. Change encoder
4. Replace PG card
Short circuit fault
of motor to
ground
Motor short circuit to ground
VFD operation current is lower than P7-61
Confirm whether the load is separated
or whether the P7-61 and P7-62
parameter settings conform to the
actual operating conditions
Wave by wave
current limiting
fault
1. Whether the load is too large or the motor
stalls
2. The selection of frequency converter is
too small
1. Reduce the load and check the motor
and mechanical condition
2. Choose the frequency converter with
higher power level
Pole position
detection failed
The deviation between the motor
parameters and the actual value is too large
Re-determine the motor parameters,
focusing on whether the motor rated
current is too small
Brake resistance
short circuit
1. Increase acceleration and
deceleration time
2. Reduce the load
1. Excessive load
2. Torque limit too small (P6-11)
1. Reduce the load
2. Increase torque limit
1. Input the signal of external fault through
multi-function terminal X
2. Input external fault signal through virtual
Y function
Communication
(timeout) fault
1. The upper computer is not working
properly
2. The communication cable is abnormal
3. Incorrect setting of communication
parameter group PC
1. Check the upper computer wiring
2. Check the communication cable
3. Setting communication parameters
correctly
Replace the main circuit board
The accumulated running time reaches the
set value
Use the parameter initialization
function to clear the record information
The accumulated power on time reaches the
set value
Use the parameter initialization
function to clear the record information
1. Input user-defined fault 1 signal through
multi-function terminal X
2. Input user defined fault 1 signal through
virtual IO function
1. Input user-defined fault 2 signal through
multi-function terminal X
2. Input user defined fault 2 signal through
virtual IO function
PID feedback is less than P7-27 setting
Check PID feedback signal or set