Curtis 1238E - Table 6 TROUBLESHOOTING CHART

136
Curtis 1232E/34E/36E/38E & 1232SE/34SE/36SE Manual, os 30
24 NOVEMBER 2015
9 — DIAGNOSTICS & TROUBLESHOOTING
Table 6 TROUBLESHOOTING CHART
PROGRAMMER LCD DISPLAY
CODE
EFFECT OF FAULT
POSSIBLE CAUSE SET/CLEAR CONDITIONS
12 Controller Overcurrent 1. External short of phase U,V, or W Set: Phase current exceeded the current
ShutdownMotor;
motor connections. measurement limit.
ShutdownMainContactor; 2. Motor parameters are mis-tuned. Clear: Cycle KSI.
ShutdownEMBrake;
3. Controller defective.
Shutdownrottle;
4. Speed encoder noise problems.
FullBrake.
13 Current Sensor Fault 1. Leakage to vehicle frame from phase Set: Controller current sensors have
ShutdownMotor;
U, V, or W (short in motor stator). invalid oset reading.
ShutdownMainContactor; 2. Controller defective. Clear: Cycle KSI.
ShutdownEMBrake;
Shutdownrottle;
FullBrake.
14 Precharge Failed 1. See Monitor menu » Battery: Set: Precharge failed to charge the capacitor
ShutdownMotor;
Capacitor Voltage. bank to the KSI voltage.
ShutdownMainContactor; 2. External load on capacitor bank (B+ Clear: Cycle Interlock input or use VCL
ShutdownEMBrake;
connection terminal) that prevents function Enable_Precharge().
Shutdownrottle;
the capacitor bank from charging.
FullBrake.
15 Controller Severe Undertemp 1. See Monitor menu » Controller: Set: Heatsink temperature below -40°C.
ShutdownMotor;
Temperature. Clear: Bring heatsink temperature
ShutdownMainContactor; 2. Controller is operating in an extreme above -40°C, and cycle interlock or KSI.
ShutdownEMBrake;
environment.
Shutdownrottle;
FullBrake.
16 Controller Severe Overtemp 1. See Monitor menu » Controller: Set: Heatsink temperature above +95°C.
ShutdownMotor;
Temperature. Clear: Bring heatsink temperature
ShutdownMainContactor; 2. Controller is operating in an extreme below +95°C, and cycle interlock or KSI.
ShutdownEMBrake;
environment.
Shutdownrottle;
3. Excessive load on vehicle.
FullBrake.
17 Severe B+ Undervoltage 1. Battery Menu parameters are Set: Capacitor bank voltage dropped
Reduced drive torque.
misadjusted. below the Severe Undervoltage limit
2. Non-controller system drain on battery. (see page 64) with FET bridge enabled.
3. Battery resistance too high. Clear: Bring capacitor voltage above
4. Battery disconnected while driving. Severe Undervoltage limit.
5. See Monitor menu » Battery:
Capacitor Voltage.
6. Blown B+ fuse or main contactor
did not close.
17 Severe KSI Undervoltage 1. See Monitor menu » Battery: Set: KSI voltage dropped below 8.4 V
If below brownout voltage,
Keyswitch Voltage. (Brownout occurs at 8.0 V.)
motor current is switched o
2. Non-controller system drain on Clear: Bring KSI voltage above 8.4 V.
and reset may occur.
low power circuit voltage.
3. Resistance in low power circuit too high.
4. Low power circuit power source
disconnected while driving.
5. Blown fuse.