Huawei FusionPower6000 Maintenance Manual page 47

FusionPower6000
Maintenance Guide
● After a UPS is troubleshooted and started, if the LCD continues displaying
● When batteries reach EOD, the battery switch in the BCB box trips if the BCB
● To restore battery discharge after batteries reach EOD, use either of the
Case Symptom
Rectifier The UPS rectifier fails to
abnormal work, and the bus voltage
is not boosted.
Inverter The buzzer buzzes, the
abnormal fault indicator is on, the
inverter is faulty, and the
UPS transfers to bypass
mode.
Charger The buzzer buzzes, the
alarm fault indicator is on, and
the charging function
fails.
The UPS When the utility power is
works in normal, the UPS works in
bypass bypass mode and does
mode and
Issue 02 (2022-07-18)
NO TICE
alarm information, choose System Info > Alarms > Clear Faults to clear the
alarm and then start the inverter.
box is configured. To restore battery discharge, turn on the battery switch in the
BCB box.
following methods: 1. Switch to another battery string. Ensure that each battery
has a voltage greater than the EOD voltage and 11.3 V/cell. 2. Restore the
utility power supply to start the inverter. Turn on the battery switch and charge
batteries until each battery has a voltage greater than the EOD voltage and
11.3 V/cell.
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Possible Cause
The utility power voltage
exceeds the upper
threshold 280 V or is less
than the lower threshold
80 V.
PFC soft-start fails.
The power module is
faulty.
Output overload or short-
circuit exists.
The power module is
faulty.
The charger fails.
The charger experiences
overcurrent.
The charger experiences
undervoltage.
The UPS is set to ECO
mode.
5 Alarm Handling
Suggestion
Check whether the utility
power voltage is beyond
the allowed range. If so,
contact the electric power
company.
Replace the power
module.
Replace the power
module.
Reduce the load or
troubleshoot the short
circuit.
Replace the power
module.
Replace the power
module.
Replace the power
module.
Check whether the
configured number of
batteries is correct. If the
setting is correct but the
alarm persists, replace the
power module.
Set the working mode
correctly.
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