Rockwell Automation Logix5000 Controllers Major, Minor, and I/O Faults Programming Manual - Manual (Page 31)

Major faults Chapter 1
Type Code Cause Recovery Method
4 89 In an SFR instruction, the target routine does not contain the
target step. Correct the SFR target or add the missing step.
4 90 A safety instruction occurs outside a safety task. Place the safety instruction inside the safety task.
4 91 Equipment Phase instruction is being called from outside an
Equipment Phase program. Only use the instruction in an Equipment Phase program.
4 990 User-defined major faults. See Create a user-defined major
fault on page 27 for more information.
4 991
4 992
4 993
4 994
4 995
4 996
4 997
4 998
4 999
6 1 Task watchdog expired.
User task has not completed in the specified period. A program
error caused an infinite loop, or the program is too complex to
run as quickly as specified, or a higher priority task is keeping
this task from finishing.
Take one or more of these steps:
•
Increase the task watchdog.
• Shorten the execution time.
• Make the priority of this task higher.
• Simplify higher priority tasks.
• Move some code to another controller.
7 40 Store to nonvolatile memory failed. 1. Try again to store the project to nonvolatile memory.
2. If the project fails to store to nonvolatile memory, replace the memory card.
If you are using a 1756-L7x controller, verify that the SD card is unlocked.
7 41 Load from nonvolatile memory failed due to controller type
mismatch.
Change to a controller of the correct type or download the project and store it on the
memory card.
7 42 Load from nonvolatile memory failed because the firmware
revision of the project in nonvolatile memory does not match
the firmware revision of the controller.
Update the controller firmware to the same revision level as the project that is in
nonvolatile memory.
7 43 Load from nonvolatile memory failed due to bad checksum. Contact Rockwell Automation Technical Support.
7 44 Failed to restore processor memory. Contact Rockwell Automation Technical Support.
8 1 Attempted to place controller in Run mode with keyswitch
during download. Wait for the download to complete and clear the fault.
11 1 Actual position has exceeded positive overtravel limit. Move axis in negative direction until position is within overtravel limit and then execute
Motion Axis Fault Reset.
11 2 Actual position has exceeded negative overtravel limit. Move axis in positive direction until position is within overtravel limit and then run
Motion Axis Fault Reset.
11 3 Actual position has exceeded position error tolerance. Move the position within tolerance, then run Motion Axis Fault Reset.
11 4 Encoder channel A, B, or Z connection is broken. Reconnect the encoder channel, then run Motion Axis Fault Reset.
11 5 Encoder noise event detected or the encoder signals are not in
quadrature. Fix encoder cabling, then run Motion Axis Fault Reset.
11 6 Drive Fault input was activated. Clear Drive Fault then run Motion Axis Fault Reset.
Rockwell Automation Publication 1756-PM014G-EN-P – October 2014 31