7-4
Section
Maintenance and Inspection
122
Inspection Items
Item
Detail
Criteria
Remarks
Supply voltage fluctuation
Check that the supply voltage
fluctuation at the power supply
terminal block is within the
permissible range.
Supply voltage rating
Multimeter
Check that there is no frequent
instantaneous power failures or
radical voltage drops.
Within permissible voltage
fluctuation range
Power supply
analyzer
Environment
(1) Ambient temperature
(2) Ambient humidity
(3) Vibration and shock
(4) Dust
(5) Corrosive gas
(1) and (2)
Check that the
ambient temperature
and humidity are
within the specified
ranges.
(3) Check that no vibration or
shock is transmitted from any
machines.
(4) Check that the system is free
of dust accumulation.
(5) Check that no metal part of
the system is discolored or
corroded.
(1), (2) and (3)
The ambient temperature,
humidity, vibration, and shock must
be within the specified ranges.
(4) The system must be free of
dust accumulation.
(5) The environment must be free
of corrosive gas.
Maximum and
minimum
thermometer
Hygrometer
Panel condition
(1) Ventilation
(2) Packing for any
enclosed construction
(1) Check that the system is
ventilated properly with natural
ventilation, forced ventilation,
or cooling air.
(2) Check that the packing is
properly attached with no
damage.
(1) The interior temperature must
be within a range between
–10
°
C and 55
°
C with proper
ventilation.
(2) The packing has no damage.
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I/O power supply
(1) Voltage fluctuation
(2) Ripple
Check on the I/O terminal block
that the voltage fluctuation and
ripple are within the permissible
ranges.
The voltage fluctuation and ripple
must be within the permissible
ranges.
Multimeter
Oscilloscope
Mounting condition
Check that each device is securely
mounted.
There must be no loose screws.
---
Check that each connector is
securely connected.
Each connector is locked or
securely tightened with screws
---
Check that no screw of the
terminal block is loosened.
There must be no loose screws.
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Check that no wire is broken or
nearly broken.
There must be no wire that is
broken or nearly broken.
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Check that the distance between
the ID Tag and Antenna is within
the specified range.
The distance between the ID Tag
and Antenna must be within the
specified range.
---
Check that the GR terminal is
grounded to a resistance of 100
Ω
or less.
The ground must be within
specifications.
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Error logging
Check the details of error logs.
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AUDIN - 7 bis rue de Tinqueux - 51100 Reims - France - Tel : 03.26.04.20.21 - Fax : 03.26.04.28.20 - Web : http: www.audin.fr - Email : [email protected]