Rockwell Automation 2705 RediPanel Push Button Module - Manual (Page 72)

Chapter 5
Maintenance and Troubleshooting
5–6
Since the Push Button Module is part of an integrated system, you must
evaluate the entire system when a fault is detected. Start your
troubleshooting by asking these basic questions:
•
Is the source power to the Push Button Module present?
•
Do you have a communications light? If not, check your twin-axial cable
wiring. The blue and clear wires may be interchanged.
•
Is the rack address set properly? Refer to Chapter 2.
•
Are the baud rates of the Push Button Module and the Scanner Module
the same? Refer to Chapter 2.
•
Is the Push Button Module the last in a series of modules, and has it been
identified as the last rack? Refer to Chapter 2.
•
Is the communication connector securely plugged in at both the Push
Button Module end and the Scanner Module end?
•
Have you changed the settings of any of the DIP switches? New DIP
switch settings are not acknowledged until power is cycled. Refer to
Chapter 2.
•
On modules with a switch selectable power supply, is the 120/240 AC
voltage switch position correct?
•
If applicable, is the fuse properly installed and in working order?
Basic Troubleshooting
Questions