Inverter fault handling - LS power generation

Create Date: 2024-8-30 12:03:23|Source: LS/Power Generation

1. The working temperature of the inverter is high

1. Check whether the ambient temperature of the inverter is too high;

2. Check whether the cooling fan inside the device is working normally;

3. Check whether the ventilation pores and mask grilles are blocked;

4. Check if the load is too heavy.

Inverter fault handling - LS power generation

Inverter fault handling - LS power generation

Second, there is no jumping room, but the motor does not work

1. Check whether the indicator light is on and check whether the input power supply is normal;

2. Check whether the control power supply is normal;

3. Check the terminal connection status;

4. Check the type of inverter fault indicator, check and remove the cause of the fault before resetting;

5. Check if the panel control is working, turn on the RUN button to work, and check whether to set the panel working frequency;

6. If it is set to external control, check the status of the external command input terminal and check whether the external work instruction is entered;

7. Check the frequency setting status;

8. Check whether the load applied to the motor is too large or the motor is hindered.

3. The motor rotates in the opposite direction

1. Convert the phase sequence of the output terminals u, v, and w;

2. Convert the forward and reverse signal input of the external working signal;

Fourth, the motor rotates, but the speed does not change

1. Check whether the load is too heavy;

2. The soft stall function has an effect, which can be closed;

3. Check the maximum frequency FH and the upper frequency UL;

4. Check whether the frequency setting signal of the inverter is low;

5. Check the setting characteristics of the frequency setting signal;

6. Check whether the torque increase is too large at low speed and whether the stall prevention alarm is effective

7. Check to see if the signal source has changed.

Fifth, the motor acceleration and deceleration are not stable

Check whether the acceleration time and deceleration time settings are too short.

Sixth, the motor current is large

1. Check whether the motor load is too heavy;

2. Check whether the torque increase is too large at low speed.

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