Appendix M Failure Modes
Appendix M-2
L-PRO 4000 User Manual
D02706R02.30
er calibration. Alarm just drives the optional output contact but Block causes
the Relay Functional LED to go out and the relay to be unable to drive any out-
put contact.
C – DSP- Micro Processor (MPC) Comm Failure, or D - MPC Self-
Check Fail
The Service Required LED changes from off to red.
E – MPC System Fail
The Test Mode LED changes from off to red until the MPC has rebooted. The
watchdog will continue to attempt to re-start the MPC several times. After
multiple failed attempts, the Service Required LED changes from off to red.
Summary of Contents for L-PRO 4000
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