Huawei iSitePower-M MAP05A1 - Page 199

Module Alarm Name Alarm
Severity
Causes Suggestion
Power
Converter
Inverter
Module
Protected
Minor Inverter
module
protection,
output short
circuit,
overload
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.
1. Check whether the system works
in bypass mode and the load
power is within the allowed
range. If yes, check other
troubleshooting suggestions.
2. For output overvoltage/
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
o 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.
3. For output short circuit: Check
whether any load or output
cables are short-circuited. If yes,
after the fault is
rectied, the
alarm is automatically cleared.
4. For overload exceeding the time
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
iSitePower-M (MAP05A1, MAB05B1)
User Manual 12 System Maintenance
Issue 06 (2023-04-24) Copyright © Huawei Digital Power Technologies Co., Ltd. 190