Curtis 1220 User Manual

Curtis 1220 Manual, Rev. C
37
6 — DIAGNOSTICS & TROUBLESHOOTING
DIAGNOSTICS & TROUBLESHOOTING
e 1220 controller detects a wide variety of fault conditions. Faults with the
steering controller typically aect the traction controller as well, as shown in
the troubleshooting chart.
Faults are displayed on the handheld programmer. If you have a LED
device attached to the Status LED driver (pin J1-1), the fault codes will be
ashed by that device. e numerical codes used by the LED are listed in the
troubleshooting chart (Table 4),
e troubleshooting chart, Table 4, provides the following information about
each controller fault:
 • faultcode
 • faultnameasdisplayedontheprogrammer’sLCD
 • possiblecausesofthefault
 • faultclearconditions
 • steerfaultaction(eectoffaultonsteering)
 • tractionfaultaction(eectoffaultontraction)
For each fault, the chart shows one of these six Steer Fault actions:
Warning Only — e 1220 still operates normally.
Shutdown — Immediate shutdown of the 1220 and turn-o of the fault
output (pin J3-1).
Warning and reduced current limit — Steer motor current is reduced, to
protect the controller.
Warning and maximizing steering angle output voltage — Steering angle output
voltage (pin J1-12) is maximized, which limits the traction motor RPM.
Warning then Shutdown — e 1220 continues to operate until the traction
motor comes to a stop or the timer (set by Fault Steering Timeout) expires.
After this occurs, the Shutdown action takes place.
Hold then Shutdown — e 1220 tries to hold the existing wheel position
regardless of operator input until the traction motor comes to a stop or the
timer (set by Fault Steering Timeout) expires. After this occurs, the Shutdown
action takes place.
Whenever a fault is encountered and no wiring or vehicle fault can be found,
shut o KSI and turn it back on to see if the fault clears. If it does not, shut
o KSI and remove the J1, J2, and J3 connectors. Check the connectors for
corrosion or damage, clean them if necessary, and re-insert them.
6

Curtis 1220 Specifications

General

Brand	Curtis
Model	1220
Category	Controller
Language	English