Table 6 Troubleshooting Chart - Curtis 1232E Manual

9 — DIAGNOSTICS & TROUBLESHOOTING
PROGRAMMER LCD DISPLAY
CODE
EFFECT OF FAULT
Controller Overcurrent
12
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake.
Current Sensor Fault
13
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake.
Precharge Failed
14
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake.
Controller Severe Undertemp
15
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake.
Controller Severe Overtemp
16
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake.
Severe B+ Undervoltage
17
Reduced drive torque.
Severe KSI Undervoltage
17
If below brownout voltage,
motor current is switched off
and reset may occur.
136
2 4 N O V E M B E R 2 0 1 5

Table 6 TROUBLESHOOTING CHART

POSSIBLE CAUSE
1. External short of phase U,V, or W
motor connections.
2. Motor parameters are mis-tuned.
3. Controller defective.
4. Speed encoder noise problems.
1. Leakage to vehicle frame from phase
U, V, or W (short in motor stator).
2. Controller defective.
1. See Monitor menu » Battery:
Capacitor Voltage.
2. External load on capacitor bank (B+
connection terminal) that prevents
the capacitor bank from charging.
1. See Monitor menu » Controller:
Temperature.
2. Controller is operating in an extreme above -40°C, and cycle interlock or KSI.
environment.
1. See Monitor menu » Controller:
Temperature.
2. Controller is operating in an extreme below +95°C, and cycle interlock or KSI.
environment.
3. Excessive load on vehicle.
1. Battery Menu parameters are
misadjusted.
2. Non-controller system drain on battery. (see page 64) with FET bridge enabled.
3. Battery resistance too high.
4. Battery disconnected while driving.
5. See Monitor menu » Battery:
Capacitor Voltage.
6. Blown B+ fuse or main contactor
did not close.
1. See Monitor menu » Battery:
Keyswitch Voltage.
2. Non-controller system drain on
low power circuit voltage.
3. Resistance in low power circuit too high.
4. Low power circuit power source
disconnected while driving.
5. Blown fuse.
Curtis 1232E/34E/36E/38E & 1232SE/34SE/36SE Manual,
SET/CLEAR CONDITIONS
Set: Phase current exceeded the current
measurement limit.
Clear: Cycle KSI.
Set: Controller current sensors have
invalid offset reading.
Clear: Cycle KSI.
Set: Precharge failed to charge the capacitor
bank to the KSI voltage.
Clear: Cycle Interlock input or use VCL
function .
Enable_Precharge()
Set: Heatsink temperature below -40°C.
Clear: Bring heatsink temperature
Set: Heatsink temperature above +95°C.
Clear: Bring heatsink temperature
Set: Capacitor bank voltage dropped
below the Severe Undervoltage limit
Clear: Bring capacitor voltage above
Severe Undervoltage limit.
Set: KSI voltage dropped below 8.4 V
(Brownout occurs at 8.0 V.)
Clear: Bring KSI voltage above 8.4 V.
30
os