iManager NetEco 6000
Device Installation and Commissioning Guide
7 Device Maintenance
Issue 03 (2019-03-10)
Copyright © Huawei Technologies Co., Ltd.
250
Item
Mainte
nance
Frequen
cy
Method
Expected
Result
Symptom
and
Possible
Cause
Exception
Handling
The RUN
indicator is
blinking fast
(0.125s on
and 0.125s
off),
indicating
that
communicati
on between
the main
control
module and
the host is
abnormal.
Check that
the
communicatio
ns cable
between the
main control
module and
the host is
properly
connected.
The ALM
indicator is
on, indicating
that there is a
critical or
major alarm.
Check and
clear the
alarm.
RS485
expansion
card, AI/DI
expansion
card, and
independent
deployment
AI/DI unit
Monthly
Check
whether the
indicators on
the RS485
expansion
card, AI/DI
expansion
card, and
independent
deployment
AI/DI unit
are normal.
The PWR
indicator is
steady on.
The RUN
indicator
blinks at long
intervals (on
for 1s and
then off for
1s).
The ALM
indicator is
off.
The PWR
indicator is
off, indicating
that the
RS485
expansion
card, AI/DI
expansion
card, or
independent
deployment
AI/DI unit is
faulty or has
abnormal
power supply.
Check that
the board in
the ECC500
has normal
power supply
and runs
properly.