Delta AH02HC-5A, Hardware Manual

Page: 193 / 229

A H 5 0 0 H a r d w a r e M a n u a l
8.3 Periodic Maintenance
Under the condition that the daily inspection is undertaken, users are suggested that they should
carry out the periodic maintenance according to the actual operating environment. After making sure
that the ambient environment and the AH500 system conform to the cautions listed in section 8.1,
users then can undertake the periodic inspection described below. If any abnormal situation occurs,
please follow the remedy and carry out the maintenance.
8.3.1 Tools Required for Inspection
z
A screwdriver
z
Industrial alcohol
z
A clean cotton cloth
z
A multimeter
z
A thermometer
z
A hygrometer
8.3.2 Periodic Inspection
No. Item Inspection Criterion Remedy
Ambient
temperature/
humidity
The ambient temperature
and the ambient humidity
are measured by a
thermometer and a
hygrometer.
The ambient
temperature and the
ambient humidity
must conform to the
specifications for the
modules or the
backplane. If the
specifications are
different, the
strictest
specifications have
high priority.
1
Ambient en
vironment
Atmosphere Measure corrosive gas.
Corrosive gas must
not be present.
To ensure that
the system
operates in a
stable
environment,
check the
reason why the
environment
varies, and
eliminate it.
2 Supply voltage
Measure the AC power
supply.
The power supply
should meet the
specifications for the
power supply
module.
Check the
power supply.
Looseness
Check whether the
module is loose. The module must be
installed firmly.
Please refer to
chapter 2 for
more
information
about installing
the module.
3
Ins
tallation
Adhesion of
dirt
Check the appearance.
Dirt must not be
present.
Remove the dirt.
Looseness of
terminal
screws
Tighten the screws with a
screwdriver. The screws must
not be loose. Further tighten
the screws.
4
C
o
nn
ec
tio
n
Looseness of
connectors
Pull the connectors.
The connectors
must not be loose.
Further tighten
the screws on
the connectors.
8 - 4