Rockwell Automation 2755 StrataScan Bar Code Readers - Manual (Page 42)

5–2 Maintenance and Troubleshooting
Publication 2755-6.13
The following table provides a list of the most common operating
problems, probable causes, and corrective actions.
Problem Possible Cause (s) Corrective Action
No blinking Green LED No power
Check transformer, outlet and power strip.
No Motor Spin No power
Check transformer, outlet and power strip.
Blinking Green LED Motherboard problem
No Motor Spin 1. Motherboard problem
2. Reader is in motor failure
condition.
Contact an Allen–Bradley service representative.
LED’s toggle back and forth and unit
produces “razzes” 1. Motor may be defective. Contact an Allen–Bradley service representative ① .
2. Too much vibration or
jarring Isolate reader from vibration.
Reader makes “razz” tone during
power-up Decode module failed
communications with the
motherboard Contact an Allen-Bradley service representative.
Power-up OK, reads OK but does not
communicate properly to host. COM Port at host not working
or is configured improperly As a quick test, put reader into Program mode
through StrataScan software. If successful, the
RECEIVE and TRANSMIT lines are working
② .
Does not communicate properly to host Cable not connected to the
proper COM Port Check cable connections.
① If reader is in an environment subject to much vibration or sudden jarring, the motor may experience a motor failure If reader is in an environment subject to much vibration or sudden jarring, the motor may experience a motor failure
condition temporarily. The unit will recover after the external stimulus has disappeared.
② If the reader is not configured for host RTS/CTS, this test is enough to verify that the reader, communication cable
and host are all working properly. When the reader is configured for host RTS/CTS, temporarily disable this function in
and host are all working properly. When the reader is configured for host RTS/CTS, temporarily disable this function in
the reader and try the quick test above. If the reader works with RTS/CTS disabled, and fails when RTS/CTS is
re–enabled, there is a problem with either the RTS or CTS line or both. Contact an Allen–Bradley service rep.
Table continued on the next page.
Troubleshooting the
Readers