Quarterly Maintenance

Power supply and distribution system

Operating status of the surge protection module

Check the surge protection module indicator and MCB status.

• The surge protection module indicator is steady green.
• The MCB is switched on.

• If the surge protection module indicator is red, replace the surge protection module.
• If the MCB is off, switch it on.

UPS

Operating environment

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• Ambient temperature: 0°C to 40°C
• Humidity: 0%–95% RH (non-condensing)

• If the temperature or humidity is abnormal, check the smart cooling product status.
• If the input voltage is abnormal, check the power grid status and input cable connection.

LCD

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According to the status icons on the LCD, all units are operating properly. No fault or alarm information is found in the active and historical alarm records.

If an alarm is present, rectify the fault by checking the device status and parameters.

Cleanliness

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Wipe the cabinet surface using a white paper and the paper does not turn black.

Remove the dust, especially from the air filter on the front door, or replace the air filter.

Parameter configuration

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The configuration of the output voltage grade, frequency, number of batteries, and battery capacity meets requirements.

Reset the parameters.

Power cables and terminals (between the UPS and the power distribution subrack)

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The insulation layer of cables is intact and terminals are free from noticeable sparks.

• Replace damaged cables.
• Secure output terminals.

Lithium battery

Battery management alarm

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No battery management alarm is generated.

Identify the cause of an alarm based on the alarm information.

Battery appearance

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1. The surface is clean and tidy without stains.
2. The battery terminals are intact.
3. Batteries are free from damage and cracks.
4. Batteries are free from acid leakage.
5. Batteries are not deformed or bulged.

If the battery appearance is abnormal, contact Huawei technical support.

Battery operating temperature

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1. Battery operating temperature: 0–45°C (charging); –20°C to +45°C (discharging)
2. Battery charge and discharge conditions meet the requirements specified in the battery specifications.

1. Identify the cause of an abnormal battery operating temperature.
2. If the fault persists, contact Huawei technical support.

Battery management parameter settings

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Check that the settings of battery management parameters meet the requirements in the user manual.

Set parameters correctly.

Battery bolts

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The location of the signs marked on battery terminal bolts indicating tight connections does not change.

Take photos from multiple angles and contact Huawei technical support.

Cables between batteries

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No cable deteriorates and the insulation layer does not crack.

Replace the faulty cable.

Battery voltage

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• Equalized charging voltage: 53.5 V DC
• Float charging voltage: 53.4 V DC

1. Check whether the equalized charging voltage and float charging voltage of a battery are normal.
2. If the charging voltage of a battery exceeds the specifications requirement, perform a complete forcible equalized charging for the battery, and check again whether the voltage is normal.
3. If the fault persists, contact Huawei technical support.

Shallow discharge test (recommended)

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Conduct a shallow discharge test when the UPS is backed up to verify that the batteries can discharge properly.

1. Locate the cause when an exception is identified.
2. If the fault persists, contact Huawei technical support.

ECC800-Pro

AC input

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Input voltage: 200–240 V AC

Frequency: 45–55 Hz

If the input voltage is abnormal, check the power grid status and input cable connection.

Output voltage

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Output voltage: 53.5 V DC±5%

If the output voltage is abnormal, check the load power and cable connection.

Indicator

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The indicator on the power module is steady green.

Check the output voltage and determine whether the power module is faulty. If the power module is faulty, replace it.

Fan

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No abnormal noise is generated.

If abnormal noise is generated, clean the fan.

Operating environment

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• Ambient temperature: –20°C to +65°C
• Humidity: 0%–95% RH (non-condensing)

If the temperature or humidity is abnormal, check the smart cooling product status.

Monitoring module indicator

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The monitoring module indicator is steady green or blinking green.

If the indicator is off or any abnormal condition occurs, see Management System Troubleshooting to rectify the fault.

Network interface indicator

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The green indicator is steady on, and the yellow indicator is blinking.

If the indicator status is abnormal, check the network cable connection.

Monitor interface (network management system or WebUI)

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Export smart cooling product logs, alarms, temperature and humidity data, as well as the operating status and time of the water sensor, temperature sensor, and smoke sensor from the management system. View the historical alarms generated in this quarter and select the most common five ones.

If an alarm is generated, handle the alarm by referring to Management System Troubleshooting and Alarm References or contacting Huawei technical support.

Cable connection

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The cable connection is secure.

Secure loose cables.

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Cables are not damaged.

Replace damaged cables.

Camera

Camera availability

On the ECC800-Pro WebUI, choose Maintenance > Manage Video > Video Info to enter the video view page. Type the camera name or IP address to find the camera, and click View to view the real-time monitoring page.

The monitoring page is properly displayed after you click View.

If the monitoring page is not displayed after you click View, check that the IP address is correctly set, and check cable connections or replace the camera. For details, see Replacing a Camera.

Intelligent lithium battery monitoring system

Battery management alarm

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No battery management alarm is generated.

Identify the cause of an alarm based on the alarm information.

Cleanliness

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Wipe the battery surface using a piece of white paper and the paper does not turn black.

Remove dust.

Battery connection

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Battery terminals and cables are in good contact.

Locate poor contact points between battery terminals and cables.

Measurement of the ambient temperature of the intelligent battery monitoring system

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The ambient temperature of the intelligent battery monitoring system is lower than 45°C.

Locate the cause of an abnormal temperature.

Water sensor and water detection cable

Functions of the water sensor and water detection cable

Place the water detection cable into the water and check whether a water leakage alarm is generated by the water sensor.

A water leakage alarm is generated.

If a water leakage alarm is not generated, replace the water detection cable.