Delta AH500 series Manuel Page 263

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Chapter 8 Maintenance and Inspection
8.2.2
Daily Inspection
No. Item Inspection Criterion Remedy
1 Appearance Check visually.
Dirt must not be
present.
Remove the dirt.
Check whether the set
screws are loose.
Further tighten the
screws.
2
Installation of a
backplane
Check whether the
backplane is installed on
the DIN rail properly.
The backplane must
be installed firmly.
Install the
backplane on the
DIN rail properly.
3 Installation of a module
Check whether the
module is loose, the
projection is inserted into
the hole on the backplane,
and the screw is
tightened.
The projection under
the module must be
inserted into the hole
in the backplane, and
the screw must be
tightened.
Install the module
firmly.
Check whether the
removable terminal block
is loose.
The removable
terminal block must
not be loose.
Install the terminal
block firmly.
4 Connection
Check whether the
connector is loose.
The connector must
not be loose.
Further tighten the
screws on the
connector.
Power
supply
module
POWER
LED
indicator
Check whether the
POWER LED indicator is
ON.
The POWER LED
indicator must be ON.
RUN LED
indicator
When the CPU module is
running, check whether
the RUN LED is ON.
The RUN LED
indicator must be ON.
ERROR LED
indicator
Check whether the
ERROR LED indicator is
OFF.
The ERROR LED
indicator must be OFF.
BUS FAULT
LED
indicator
Check whether the BUS
FAULT LED indicator is
OFF.
The BUS FAULT LED
indicator must be OFF.
CPU
module
SYSTEM
LED
indicator
Check whether the
SYSTEM LED indicator is
OFF.
The SYSTEM LED
indicator must be OFF.
5
LED indicators on an
extension module
Check whether the LED
indicators on the
extension module are ON.
If the LED indicators
are ON, the module
operates normally.
Please refer to
chapter 9 for more
information about
the
troubleshooting.
* Please refer to Module Manual for more information related to the LED indicators on the extension modules.
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
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