80
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Heat-resistive RFID System
User's Manual
Section 5
Troubleshooting
Maintenance and Inspection
The V680 Series must be inspected on a daily or regular basis so that the functions of the V680 Series can be used
in good condition.
The V680 Series consists of semiconductors that last almost indefinitely. The following malfunctions may, however,
result due to the operating environment and conditions.
(1) Element deterioration due to overvoltage or overcurrent.
(2) Element deterioration due to continuous stress caused by high ambient temperature.
(3) Connector contact faults or insulation deterioration due to humidity and dust.
(4) Connector contact faults or element corrosion due to corrosive gas.
Inspection Items
Item
Detail
Criteria
Required
equipment
Supply voltage fluctuation
Check that the supply voltage fluctuation at
the power supply terminal block is within the
permissible range.
Within supply voltage specified range
Multimeter
Check that there are no frequent instanta-
neous power failures or radical voltage fluc-
tuations.
Within permissible voltage fluctuation
range
Power supply
analyzer
Ambient envi-
ronment
Temperature
Within the specified range
Within the specified range
Maximum and
minimum ther-
mometer
Hygrometer
Humidity
Vibration and
shock
Influence of vibration or impact of machines
Dust
Check that the system is free of accumu-
lated dust and foreign particles.
Neither is permitted.
Corrosive gas
Check that no metal part of the system is
discolored or corroded.
Panel condi-
tion
Ventilation
Check that the system is ventilated properly
with natural ventilation, forced ventilation, or
cooling air.
The interior temperature must be within
a range between
−
10
°
C and 55
°
C with
proper ventilation.
---
Damage to
packing for
any enclosed
construction
Check that the panel packing is properly
attached with no damage.
The packing has no damage.
I/O power
supply
Voltage fluctu-
ation
Check on the I/O terminal block that the volt-
age fluctuation and ripple are within the per-
missible ranges.
Within the specified range
Multimeter
Oscilloscope
Ripple
Mounting condition
Check that each device is securely
mounted.
No loose screws
---
Check that each connector is fully inserted.
Each connector is locked or securely
tightened with screws.
Check that no wire is broken or nearly bro-
ken.
No wire that is broken or nearly broken. ---
Check that no screw of the terminal block is
loose.
No loose screws
---
Check that the distance between the Tag
and Antenna is within the specified range.
Within the specified range
---
Check that the GR terminal is grounded.
The terminal must be grounded to a
resistance of 100
Ω
or less.
---
