Curtis PMC 1297 Manual
87
Preliminary on Verso page is set with right edge at 7 and 7/8,
and the top (as on the Recto page) at 1/4.
7 — DIAGNOSTICS & TROUBLESHOOTING
LED DIAGNOSTICS
A Status LED is built into the 1297 controller. It is visible through a window
in the label on top of the controller. This Status LED displays fault codes when
there is a problem with the controller or with the inputs to the controller. During
normal operation, with no faults present, the Status LED flashes steadily on and
off. If the controller detects a fault, a 2-digit fault identification code is flashed
continuously until the fault is corrected. For example, code “3,2”—main
contactor welded—appears as:
¤¤¤ ¤¤ ¤¤¤ ¤¤ ¤¤¤ ¤¤
( 3 , 2 ) ( 3 , 2 ) ( 3 , 2 )
The codes are listed in Table 6.
Table 6 STATUS LED FAULT CODES
LED CODES EXPLANATION
LED off no power or defective controller
solid on controller or microprocessor fault
0,1
■
¤ controller operational; no known faults
1,1 ¤¤ traction motor current sensor error
1,2 ¤¤¤ hardware failsafe
1,3 ¤ ¤¤¤ traction motor M- shorted
1,4 ¤ ¤¤¤¤ Lowering valve fault
2,0 ¤¤ battery below 20% state of charge
2,1 ¤¤ ¤ traction throttle fault
2,2 ¤¤ ¤¤ pump motor current sensor error
2,3 ¤¤ ¤¤¤ traction sequencing error
2,4 ¤¤ ¤¤¤¤ pump motor M- shorted
3,1 ¤¤¤ ¤ emerg. rev. wiring or tiller multiplexer error
3,2 ¤¤¤ ¤¤ main contactor welded
3,3 ¤¤¤ ¤¤¤ traction motor field open or shorted
3,4 ¤¤¤ ¤¤¤¤ main contactor open
4,0 ¤¤¤¤ expired disable timer
4,1 ¤¤¤¤ ¤ expired maintenance monitor
4,2 ¤¤¤¤ ¤¤ over-/under-voltage
4,3 ¤¤¤¤ ¤¤¤ over-/under-temperature
4,4 ¤¤¤¤ ¤¤¤¤ hydraulic throttle fault
NOTE: Only one fault is indicated at a time, and faults are not queued up. Refer
to the troubleshooting chart (Table 5) for suggestions about possible causes of
the various faults.
To Next Page
Loading...
Need help?
General
