Rockwell Automation 1756-HYD02 ControlLogix Hydraulic Servo Module User Manual
Page 14

14 ControlLogix™ Hydraulic Servo Module
Publication
1756-IN580A-EN-P - March 2003
Understanding Module Status Using the FDBK Indicator
Flashing red
light
One of the following:
· A major recoverable
failure has occurred.
· A communication fault,
timer fault, or
non-volatile memory
storage (NVS) update is
in progress.
· The OK contact has
opened.
If an NVS update is in progress,
complete the NVS update.
If an NVS update is not in progress:
· Check the Servo Fault word for the
source of the error.
· Clear the servo fault condition via
Motion Axis Fault Reset instruction.
· Resume normal operation.
· If the flashing persists, reconfigure
the module.
Steady red light
One of the following:
· A potential non-
recoverable fault has
occurred.
· The OK contact has
opened.
· Reboot the module.
· If the solid red persists, replace the
module.
IMPORTANT
Make sure that any transducer used with the
1756-HYD02 module uses an external
interrogation signal.
If the OK
indicator
displays:
The module status is:
Take this action:
AX0 AX1
FDBK
DRIVE
OK
HYDRAULIC
FDBK
DRIVE
Feedback
indicators