Periodic Inspection - Delta AS Series Operation Manual

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D.3.2 Periodic Inspection
No.
1
2 Supply voltage
3
4
PLC system
5
diagnosis
Item Inspection
The ambient temperature
Ambient and the ambient humidity
temperature/hu are measured by a
midity thermometer and a
hygrometer.
Atmosphere Measure corrosive gas.
Measure the AC power
supply.
Check whether the module
Looseness
is loose.
Adhesion of
Check the appearance.
dirt
Looseness of
Tighten the screws with a
terminal
screwdriver.
screws
Looseness of
Pull the connectors.
connectors
Check the error logs.
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Criterion
The ambient
temperature and the
ambient humidity must
To ensure that the
conform to the
system operates
specifications for the
in a stable
modules or the
environment,
backplane. If the
determine why the
specifications are
environment
different, the strictest
varies, and
specifications have
resolve the issue.
priority.
Corrosive gas must
not be present.
The power supply
should meet the Check the power
specifications for the supply.
power supply module.
Please refer to
Chapter 4 for
The module must be
more information
installed firmly.
on installing the
module.
Dirt must not be
Remove the dirt.
present.
The screws must not Tighten the
be loose. screws.
Tighten the
The connectors must
screws on the
not be loose.
connectors.
Please refer to
No new error occurs. section 12.1.3 for
more information.
Remedy