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