Table of Contents
Advertisement
iSitePower-M V100R002C00
User Manual (MAP05A1, MAB05B1)
Alarm Name
PV Module
Protected
Issue 03 (2022-10-28)
Alarm
Severi
ty
Minor
Copyright © Huawei Digital Power Technologies Co., Ltd.
Causes
Alarm
Locating
PV module
1. Input
protection,
overvoltage/
input
undervoltage
overvoltage
protection:
/
Check whether
undervoltag
the PV input
e
voltage is
protection,
within the
bus
specified range
overvoltage
on the mobile
/
phone app or
undervoltag
using a
e
multimeter. If
protection,
not, the PV
PV low
input is
irradiance,
abnormal.
internal
2. PV low
overtemper
irradiance:
ature.
Generally, a
low irradiance
alarm is likely
to be
generated in
the early
morning or at
dusk. The
alarm can be
automatically
cleared during
high irradiance
after the
product runs
for a
maximum of
30 minutes or
manually
cleared using
the mobile
phone app.
3. Internal
overtemperatu
re: If the
internal
temperature
exceeds the
protection
threshold,
check whether
10 System Maintenance
Suggestion
1. Check whether the
alarm is cleared. If yes,
no further action is
required. If no, go to
the next step.
2. Power off and then
power on the system,
and check whether the
alarm is cleared. If yes,
no further action is
required. If no, go to
the next step.
3. Contact Huawei
technical support to
check the module.
136
Advertisement
Table of Contents
