Curtis 1222 Manual, os 15
103
2 9 J A N U A R Y 2 0 1 3 D R A F T
Table 6 TROUBLESHOOTING CHART, continued
FLASH SUB
CLEAR STEER TRACTION
CODE CODE
NAME
POSSIBLE CAUSE
SET CONDITION
CONDITION
FAULT ACTION
FAULT ACTION
7 — DIAGNOSTICS & TROUBLESHOOTING
35 1 Fault Output 1. External load impedance on The controller is unable to assert the fault Cycle KSI. Warning then 1 = Stop.
Open/Short the fault output is too low. output line: Shutdown.
2. Controller defective. 1. The Fault Output = On and the fault
output voltage is not within 5 V of the
KSI voltage.
2. The Fault Output = Off and the fault
output voltage is greater than 80% of
KSI voltage.
3. The Fault Output = On and the fault
output voltage is less than 4 V.
36 1
Motor Stalled 1. Stalled steer motor. The motor has been commanded to move Cycle KSI. Warning then 1 = Stop.
2. Steer motor encoder failure. at more than 25% of the Max Motor Speed Shutdown.
3. Bad crimps or faulty wiring. or at more than 95% of the available motor
4. Problems with power supply current when the motor speed is less than
of the steer motor encoder. the programmed Stall Speed for the
programmed Stall Time.
37 1
Motor Open 1. Motor phase is open. 1. After the steer contactor closes but before Cycle KSI. Warning then 1 = Stop.
2. Bad crimps or faulty motor cable operation starts, the motor is checked for Shutdown.
wiring. an open phase by running a DC current
3. Controller defective. out of phase U and ensuring the current
is measured back on both phase V and
phase W. The fault is set if the check fails.
2. When the motor is running, one phase
averages less than 1 A while the other
phases average more than 4 A for
256 ms when the electrical frequency
is greater than 1 Hz and has not changed
sign.
38 1
Contactor 1. Steer contactor tips are welded closed. The steer contactor tips are shorted when Cycle KSI. Shutdown. 1 = Stop.
Welded 2. An alternative voltage path (such as the contactor is supposed to be open. This
an external precharge resistor) is fault is set only when Contactor Control
providing a current to the capacitor Type = 1 and Checks Enable = On. The weld
bank (B+ terminal). check is done in Steer Contactor State = 3
(Opening) when DC current is applied to
the motor. The fault will be set if the
difference between the capacitor bank and
keyswitch voltages does not exceed 2 V.
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