AB Quality Allen-Bradley 1394, User Manual

Page: 169 / 301

Publication 1394-5.0 — May 2000
Troubleshooting 9-3
For this module: For this LED:
Status of the
LED:
Potential Cause: Possible resolution:
CNC Interface
System Module I/O Ring
Status
Steady red The fiber optic ring has failed at
some point before the 1394 system
module.
Check all components and connections before
the 1394 on the fiber optic ring.
Flashing red The fiber optic ring has failed at
some point after the 1394 system
module.
Check all components and connections after
the 1394 on the fiber optic ring.
Not
illuminated No power to the system.
This LED is not illuminated when
operating normally.
Check 24V control power and 460V AC input
power for the 1394.
9/440 System
Module XILINX
Steady red Operating normally.
None needed.
Not
illuminated Power to the system module is not
on.
• Cycle power.
• Apply power to the system module.
An XILINX hardware fault has
occurred.
• Replace the system module.
• Contact your local Allen-Bradley Support
Representative.
WATCHDOG Steady red Operating normally.
None needed.
Not
illuminated Power to the system module is not
on.
Apply power to the system module.
Watchdog has timed out and a
processor failure has occurred.
• Cycle power.
• Replace the system module.
• Contact your local Allen-Bradley Support
Representative.
Status
Steady red Operating normally.
None needed.
Not
illuminated Power to the system module is not
on.
Apply power to the system module.
Watchdog has timed out and a
processor failure has occurred.
• Cycle power.
• Replace the system module.
• Contact your local Allen-Bradley Support
Representative.
R-I/O Steady or
flashing red For systems with remote I/O, this
indicates that communication with
remote I/O is occurring.
None needed.
Not
illuminated Your system does not have remote
I/O or you have not enabled remote
I/O in your program.
• Verify that you have purchased the remote
I/O option for this system.
• Verify that you have enabled the remote I/O
in your PAL program.