LSIS H100 Troubleshooting Manual

2. Troubleshooting
32
The motor stopped when accelerated or connected to load.
Problem
Solution
The load is too high.
Reduce the load.
Replace the motor and inverter appropriate to inverter
capacity.
The motor does not accelerate. / The acceleration time is too long.
Problem
Solution
The frequency command is too low.
Change the setting accordingly.
The load is too high.
Reduce the load. Increase the acceleration time.
Check the status of the mechanical brake.
The acceleration time is too long.
Change the setting accordingly.
The properties of the motor and inverter
parameters are incorrect.
Change the parameters of the motor.
The stall prevention level during acceleration is
low.
Change the stall prevention level.
The stall prevention level during operation is
low.
Change the stall prevention level.
Starting torque is insufficient.
Change to vector control operation mode. If the fault still
exists, replace the inverter that has a bigger capacity.
Motor speed changes during operation.
Problem
Solution
There is high variance in the load.
Replace the motor and inverter that has a bigger capacity.
The input voltage changes.
Reduce the input voltage variance (standard deviation).
The motor speed changes at a specific
frequency.
Adjust the output frequency to avoid resonance.
The motor rotation is different from the setting.
Problem
Solution
The V/F pattern is set incorrectly.
Set a V/F pattern suitable for motor specification.

LSIS H100 Specifications

General

Brand	LSIS
Model	H100
Category	Inverter
Language	English