Errors And Countermeasures - Omron V680-CA1D User Manual

Errors and Countermeasures

The seven main causes of problems that may occur in the V680 Series are as follows:
• Noise interference
. . . . . . . . . . . . Take adequate countermeasures against noise.
• External device failure
• Controller failure
• Antenna failure
• Cable failure
• Tag failure
• Others
Noise Interference
If the system malfunctions due to noise, refer to the following table and take appropriate
countermeasures.
No. Occurrence of fault
1 Occurs when a heavy-duty motor,
transformer, or capacitor is turned
ON.
2 Occurs irregularly
Improvement in Grounding
Other
Controller
device
. . . . . . Repairs are required.
An instantaneous voltage drop due
to inrush current to the heavy load.
Common mode noise as a result of
the above cause.
Noise on power line
Multiple V680-series Antennas
Countermeasures Against Noise on Power Line
24 VDC
Other
Controller
device
Ground at a
resistance less
than 100 Ω
Possible cause
• Increase the capacity of the power
supply and the size of the power
cable.
• Provide the power through a 1-to-1
non-grounded insulating trans-
former.
• Do not use the same ground as
other large-capacity devices. Inde-
pendently ground the Controller at
a resistance of 100 Ω or less.
• Provide the power through a 1-to-1
non-grounded insulating trans-
former or noise filter.
• Do not use the same ground as
other large-capacity devices. Inde-
pendently ground the Controller at
a resistance of 100 Ω or less.
• Provide sufficient space between
Antennas when operating multiple
V680-series Antennas.
Line filter
0 V
Heat-resistive RFID System
Section 5
Troubleshooting
Countermeasure
Controller
Twist the wires and do
not lay them out parallel
to power lines.
User's Manual
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