I23003G1

Power indicator

Steady on (Green)

The inverter module has DC input.

Normal status

Off

The inverter module has no DC input.

Check that the DC voltage input is normal.

The inverter module is faulty.

Replace the inverter module.

Blinking (Green, 0.5 Hz)

The DC input is available, and the inverter module is being queried.

The indicator is steady on when the query is exited or the software is being loaded.

Blinking (Green, 4 Hz)

The DC input is available, and the inverter module is loading software.

Alarm indicator

Off

The inverter module has no protection alarms.

Normal status

Steady on (Yellow)

An inverter module overtemperature warning occurs.

Ensure that the ventilation vent is unblocked and the ambient temperature is within the normal range.

A DC input overvoltage or undervoltage alarm occurs. An AC output overvoltage or undervoltage alarm occurs.

Check whether the overvoltage or undervoltage is caused by the external input

An output short circuit, overload timeout protection.

Rectify the load fault.

The level-2 phase lock fails.

Remove and reinstall the inverter module.

The inverter module is hibernating.

Restart the inverter module.

The AC-side communication signal of the module is abnormal.

Check whether the signal port is properly connected.

Blinking (Yellow, 0.5 Hz)

The inverter module fails to communicate.

• Clean the edge connectors of the inverter module.
• If the indicator is still blinking, check whether the external communication module is faulty.

Fault indicator

Off

The inverter module is normal.

Normal status

Steady on (Red)

The inverter module has no output due to internal faults.

Replace the inverter module.

The inverter module is not in position.

Check that the inverter module is properly installed.