T12 Service Information 9009917 (12-12)
4-17
TROUbLESHOOTING
Curtis 1232 Controller Diagnostic Codes, continued
13
14
15
16
17
Severe Undervoltage
Reduced drive torque.
TROUBLESHOOTING CHART
FAULT CONDITION
CODE
EFFECT OF FAULT
POSSIBLE CAUSE
SET/CLEAR CONDITIONS
12
Controller Overcurrent
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake;
ShutdownPump.
1. Leakage to vehicle frame from phase
U, V, or W (short in motor stator).
2. Controller defective.
Current Sensor Fault
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake;
ShutdownPump.
1. External load on capacitor bank (B+
connection terminal) that prevents
the capacitor bank from charging.
2. See Monitor menu » Battery:
Capacitor Voltage.
Precharge Failed
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake;
ShutdownPump.
1. See Monitor menu » Controller:
Temperature.
2. Controller is operating in an extreme
environment.
Controller Severe Undertemp
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake;
ShutdownPump.
1. See Monitor menu » Controller:
Temperature.
2. Controller is operating in an extreme
environment.
3. Excessive load on vehicle.
4. Improper mounting of controller.
Controller Severe Overtemp
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake;
ShutdownPump.
1. Battery Menu parameters are
misadjusted.
2. Non-controller system drain on
battery.
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.
Set:
Controller current sensors have
invalid offset reading.
Clear:
Cycle KSI.
Set:
Phase current exceeded the
current measurement limit.
Clear:
Cycle KSI.
Set:
Precharge failed to charge the
capacitor bank to the KSI voltage.
Clear:
Cycle interlock input or use VCL
function.
Set:
Heatsink temperature below -40˚C.
Clear:
Bring heatsink temperature
above -40˚C, and cycle interlock or KSI.
Set:
Heatsink temperature above +95˚C.
Clear:
Bring heatsink temperature
below +95˚C, and cycle interlock or KSI.
Set:
Capacitor bank voltage dropped
below the severe undervoltage limit
with FET bridge enabled.
Clear:
Bring capacitor voltage above
severe undervoltage limit.
1. External short of phase U, V, or W
motor connections.
2. Motor parameters are mis-tuned.
3. Controller defective.
TROUBLESHOOTING CHART, continued
FAULT CONDITION
CODE
EFFECT OF FAULT
POSSIBLE CAUSE
SET/CLEAR CONDITIONS
68 VCL Run Time Error
1. VCL code encountered a runtime
Set:
Runtime VCL code error condition.
Clear:
Edit VCL application software to
fix this error condition; flash the new
compiled software and matching
parameter defaults; cycle KSI.
VCL error.
2. See Monitor menu » Controller:
VCL Error Module and VCL Error.
This error can then be compared to
the runtime VCL module ID and
error code definitions found in the
specific OS system information file.
69
External Supply Out of Range
1. External load on the 5V and 12V
Set:
The external supply current (com-
bined current used by the 5V supply
[pin 26] and 12V supply [pin 25]) is either
greater than the lower current threshold.
The two thresholds are defined by the
External Supply Max and External Supply
Min parameter settings.
Clear:
Bring the external supply current
within range.
None, unless a fault action
supplies draws either too much or
is programmed in VCL.
too little current.
2. Fault Checking Menu parameters
Ext Supply Max and Ext Supply Min
are mis-tuned.
3. See Monitor menu » Outputs:
Ext Supply Current.
71
OS General
1. Internal controller fault.
Set:
Internal controller fault detected.
Clear:
Cycle KSI
72
PDO Timeout
1. Time between CAN PDO messages
Set:
Time between CAN PDO messages
received exceeded the PDO Timeout
Period.
Clear:
Cycle KSI.
ShutdownInterlock;
received exceeded the PDO
CAN NMT State set
Timeout Period.
to Pre-operational.
73
Stall Detected
1. Stalled motor.
Set:
No motor encoder movement
detected.
Clear:
Either cycle KSI, or
detect valid motor encoder signals
while operating in LOS mode and
return Throttle Command = 0 and
Motor RPM= 0
ShutdownEMBrake.
2. Motor encoder failure.
3. Bad crimps or faulty wiring.
4. Problems with power supply for
the motor encoder.
5. See Monitor menu » Motor:
Motor RPM.
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
ShutdownInterlock;
ShutdownDriver1;
ShutdownDriver2;
ShutdownDriver3;
ShutdownDriver4;
ShutdownPD;
FullBrake;
ShutdownPump.
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
ShutdownInterlock;
ShutdownDriver1;
ShutdownDriver2;
ShutdownDriver3;
ShutdownDriver4;
ShutdownPD;
FullBrake;
ShutdownPump.
PMC008
Terms:
kSI = key Switch Interlock
feT = field-effect Transistor
vCL = vehicle Control Language
Can = Controller area network
Summary of Contents for EC-H2O T12
Page 8: ...1 4 T12 Service Information 9009917 12 12 SAFETY PRECAUTIONS...
Page 68: ...3 44 T12 Service Information 9009917 12 12 MAINTENANCE...
Page 132: ...4 64 T12 Service Information 9009917 12 12 TROUBLESHOOTING...
Page 177: ......
Page 178: ......
