1. The motor insulation is
damaged or the motor is
overheated
2. Grounding problem
caused by damaged motor
cable
3.The drive is damaged
4.The load is too heavy
5. Settings for acceleration or
deceleration time is too short
6.The drive is running a
special purpose motor or a
motor larger than the drive
rated capacity
7. A magnetic contactor (MC)
on the output side of the
drive has turned on or off
8. V/F set incorrectly
9. Excessive torque
compensation
10. Electrical signal
1. Check the insulation resistance
2. Check the motor power cable
3. Check the resistance between
the cable and the terminal.
4. Short circuit on drive output
side or grounding causes
register damage.
5. >Measure the current flowing
into the motor
>Check the motor capacity
6. Calculate the torque required
during acceleration according to
the load inertia and acceleration
time. If the required torque is
insufficient, check the motor
capacity.
7. Install a sequence controller to
ensure the MC does not open or
close when the drive is
outputting voltage.
8. Check the ratios between the
frequency and voltage set by
V/F.
9. Adjust d1-02 to d1-11