Huawei iSitePower-M MAP05A1 User Manual page 199

iSitePower-M (MAP05A1, MAB05B1)
User Manual
Module Alarm Name
Power Inverter
Converter Module
Protected
Issue 06 (2023-04-24)
Alarm
Severity
Minor
Copyright © Huawei Digital Power Technologies Co., Ltd.
Causes Suggestion
Inverter 1. Check whether the system works
module
protection,
output short
circuit,
overload
2. For output overvoltage/
exceeding the
time limit,
output
overvoltage/
undervoltage
protection,
parallel CAN
communication
failure, module
current
equalization
failure, utility-
frequency
synchronization
cable fault,
carrier
synchronization
cable fault,
phase-lock
failure, or
INV_BPS cable
fault occurs.
3. For output short circuit: Check
4. For overload exceeding the time
12 System Maintenance
in bypass mode and the load
power is within the allowed
range. If yes, check other
troubleshooting suggestions.
undervoltage protection: When
there is no mains power, check
whether the output voltage of
the inversion unit is within the
allowed range of the system
using the mobile app,
management system, or a
multimeter. If not, power off and
then power on the system, and
check whether the alarm is
cleared.
● FusionSolar app (local
commissioning): Home >
Digital Power > Device > AC
Output Distribution > AC
Voltage
● Management system:
Navigate to the device and
choose AC Output
Distribution > Details > AC
Voltage.
whether any load or output
cables are short-circuited. If yes,
after the fault is rectified, the
alarm is automatically cleared.
limit: Check whether the AC
output has been overloaded for
an extended period of time. If
yes, reduce the load power to the
allowed range, let the system run
for a period of time, and check
whether the alarm is cleared.
● FusionSolar app (local
commissioning): Home >
Digital Power > Device > AC
Output Distribution > Active
Power
● Management system:
Navigate to the device and
190