Troubleshooting Chart - Motrec E-242HD Operator And Maintenance Manual

LED PROGRAMMER
CODE LCD DISPLAY
0,1
NO KNOWN FAULTS
1,1
CURRENT SHUNT FAULT
1,2
HW FAILSAFE
1,3
M- SHORTED
1,4
SRO
2,1
THROTTLE WIPER HI
2,2
EMR REV WIRING
2,3
HPD
SRVC TOTAL
SRVC TRAC
TOTAL DISABLED
TRAC DISABLED
2,4
THROTTLE WIPER LO
3,1
FIELD SHORT
3,2
MAIN CONT WELDED
3,3
FIELD OPEN
3,4
MISSING CONTACTOR
Curtis 1243 2 Manual
GEN
Table 7 TROUBLESHOOTING CHART
FAULT
CATEGORY
POSSIBLE CAUSE
0 n/a
1 1. Abnormal vehicle operation causing
high current spikes.
2. Current sensor out of range.
3. Controller failure.
1 1. Noisy environment.
2. Self-test or watchdog fault.
3. Controller failure.
1 1. Internal or external short of M- to B-.
2. Incorrect motor wiring.
3. Controller failure.
3 1. Improper sequence of KSI, interlock,
and direction inputs.
2. Interlock or direction switch circuit open.
3. Sequencing delay too short.
4. Wrong SRO or throttle type selected.
5. Misadjusted throttle pot.
1 1. Throttle input wire open or shorted to B+. When Throttle Wiper High
2. Defective throttle pot.
3. Wrong throttle type selected.
1 1. Emergency reverse wire or check wire
open.
3 1. Improper sequence of KSI, interlock,
and throttle inputs.
2. Misadjusted throttle pot.
3. Sequencing delay too short.
3. Wrong HPD or throttle type selected.
5. Misadjusted throttle pot.
3 1. Total maintenance timer expired.
3 1. Traction maintenance timer expired.
3 1. Total disable timer expired.
3 1. Traction disable timer expired.
1 1. Throttle pot wire open or shorted to B+.
2. Wrong throttle type selected.
3. Defective throttle pot.
1 1. Main contactor coil shorted.
2. Field winding shorted to B+ or B-.
3. Field resistance too low.
1 1. Main contactor stuck closed.
2. Main contactor driver shorted.
1 1. Field winding connection open.
2. Field winding open.
1 1. Main contactor coil open.
2. Main contactor missing.
3. Wire to main contactor open.
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7 — DIAGNOSTICS & TROUBLESHOOTING
FAULT CLEARANCE
n/a
Cycle KSI. If problem
persists, replace controller.
Cycle KSI. If problem
persists, replace controller.
Check wiring; cycle KSI.
If problem persists,
replace controller.
Follow proper sequence;
adjust throttle if necessary;
adjust programmable
parameters if necessary.
input returns to valid range.
Re-apply emergency reverse
or cycle interlock.
Follow proper sequence;
adjust throttle if necessary;
adjust programmable
parameters if necessary.
Reset with programmer.
Reset with programmer.
Reset with programmer.
Reset with programmer.
When Throttle Wiper Low
input returns to valid range.
Check contactor coil and
field winding; cycle KSI.
Check wiring and contactor;
cycle KSI.
Check wiring and cycle KSI.
Check wiring and cycle KSI.
72