Rockwell Automation 2755 High Performance VLD Scanner - Manual (Page 43)

6–3 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