Manual

59
Curtis PMC 1207/1207A Manual A-4
APPENDIX A: GLOSSARY
The automatic fault detection system includes:
contactor coil open / shorted driver (F/R and shunt contactors)
contactor driver overcurrent / contactor coil short
contactor welded
emergency reverse circuit check
M- output fault
memory checks upon start-up
overvoltage cutoff
power supply out of range (internal)
throttle fault
undervoltage cutback
watchdog (external and internal)
watchdog (internal)
Fault recording
Fault events are recorded in the controller’s memory. Multiple occurrences of the
same fault are recorded as one occurrence.
The fault event list can be loaded into the programmer for readout. The
Special Diagnostics mode provides access to the controller’s diagnostic history
file—the entire fault event list created since the diagnostic history file was last
cleared. The Diagnostics mode, on the other hand, provides information about
only the currently active faults.
Fault recovery
(including recovery from disable)
Almost all faults require a cycling of the KSI or brake input to reset the controller
and enable operation.
The only exceptions are these:
FAULT RECOVERY
anti-tiedown release and re-select Mode 1
contactor overcurrent when condition clears
emergency reverse BB re-applied
or brake cycled
HPD lower throttle to below HPD threshold
overvoltage when battery voltage drops below overvoltage
SRO when proper sequence is followed
thermal cutback when temperature comes within range
throttle fault clears when condition gone
undervoltage when battery voltage rises above undervoltage