Alarm References

Surge protective device (SPD)

SPD fault

Major

A surge protection module is damaged or the SPD circuit breaker has tripped.

Replace the surge protection module or switch on the SPD circuit breaker.

UPS

Rectifier fault

Critical

• The mains has experienced a transient high voltage.
• The output carries special loads such as the inductive and rectification loads.
• The output carries the transformer load but the transformer mode is not enabled.
• The hardware is damaged.

• Rectify the fault, and power on the UPS again.
• Check that the load types are supported by the UPS.
• Enable the transformer mode.
• Contact Huawei technical support.

Internal fault

Critical

The bypass input cable connection does not match the output system.

Correct the bypass input cable connection so that it matches the output system.

Fan fault

Critical

The fan is abnormal.

Clean up foreign matter around the fan. If the fault persists, contact Huawei technical support.

Inverter fault

Critical

The inverter output short-circuits.

Eliminate the short circuit at the output port cable connection, and then power on and start the inverter again. If the fault persists, contact Huawei technical support.

Output short circuit

Critical

The load or cable is short-circuited.

Locate and rectify the short circuit.

Intelligent lithium battery monitoring system

Communication Failure

Critical

The network cable communication is interrupted.

Check the cable connection to the smart ETH gateway.

BCB Tripping

Critical

• The battery has discharged to the end-of-discharge (EOD) threshold.
• The battery circuit breaker (BCB) box is manually disconnected.
• There is a security risk in the battery loop.

Identify the alarm cause, rectify the fault, and switch on the BCB box.

Single Batt. terminal off

Critical

• A battery terminal screw is not tightened.
• The battery terminal is not properly connected to the connector.

• Check that battery terminal screws are tightened.
• Check that battery terminals are properly connected to connectors.

Single Batt. Exception

Critical

• The battery shell is broken, resulting in electrolyte and electricity leakage.
• The battery loop cable is broken and short-circuited to the ground, resulting in electricity leakage.

• Check whether the appearances of abnormal batteries are intact, and replace abnormal batteries.
• Check whether battery loop cables are deteriorated or broken, and replace faulty cables.