Huawei iSitePower - Ats

4.1.3 ATS
Table 4-3 ATS troubleshooting
Symptom Alarm Possible Causes Solution
Communication
is abnormal (the
RUN indicator
blinks at 0.5 Hz).
CAN communication
interruption alarm
● The communications
cable is loose.
● The ATS main control
box is faulty.
● Reconnect the
communications
cable.
● Replace the ATS
main control box.
The ALM
indicator is
steady on.
● ATS contactor fault
● AC SPD fault
● Communication
failure
● The contactor is faulty.
● The SPD is faulty.
● The meter chip is faulty.
● Replace the ATS.
● Replace the SPD.
● Replace the ATS
main control box.
AC input
overvoltage
alarm
AC input overvoltage
alarm
● The input voltage of DG
1 is abnormal.
● The mains or DG 2 input
voltage is abnormal.
● The ATS main control
box is faulty.
● If the AC input is
from mains,
contact the mains
supplier.
● If the DG supplies
AC power, check
and repair the DG
by referring to
the DG user
manual.
● Replace the ATS
main control box.
AC input
undervoltage
alarm
AC input undervoltage
alarm
Mains failure
alarm
Mains failure alarm There is no mains supply.
Input overcurrent
alarm
Input overcurrent alarm The load circuit is subject to
short circuits or overload.
● Check whether
load short circuit
occurs.
● Check that the
load capacity is
within the
maximum
threshold. If
capacity
expansion is
required, contact
site engineers.
iSitePower Integrated Smart Site (ICC1000-A1-E1)
User Manual 4 Maintenance
Issue 04 (2022-10-15) Copyright © Huawei Technologies Co., Ltd. 109