Troubleshooting – Rockwell Automation 2755 High Performance VLD Scanner User Manual
Page 43
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Maintenance and Troubleshooting
This section lists problems that may occur with the scanner and/or
connected decoder. Each problem lists possible causes and solutions.
Problem:
“Power” indicator on both the scanner and
decoder do not light.
Cause:
Decoder power switch is in OFF position.
Solution:
Turn decoder power switch to ON
position.
Cause:
No incoming power.
Solution:
Verify power source.
Cause:
Improper connection to power source.
Solution:
Check connections.
Cause:
Faulty decoder.
Solution:
Return decoder to Allen-Bradley for
repair.
Problem:
Decoder “Power” indicator lights but Scanner
“Power” indicator does not light.
Cause:
Improperly connected or faulty cable
between scanner and decoder.
Solution:
Verify connections, replace cable.
Cause:
Internal decoder or scanner failure.
Solution:
Return scanner or decoder to
Allen-Bradley for repair.
Problem:
No laser beam emits from scan window.
Cause:
No scan trigger signal.
Solution:
Verify decoder Laser On Mode and
Decode Mode for proper configuration.
Verify sending of scan trigger by either
package detect or trigger from decoder.
Troubleshooting