prime mover smx45 Master Service Manual page 185

Reason
Performance Limits
How to Clear Code
Possible Causes
with corrective
actions/checks
Reason
Performance Limits
How to Clear Code
Possible Causes
with corrective
actions/checks
Code C44 - ("Hot" is displayed) - Traction (Drive) Motor Thermal Cutback
Reason
Performance Limits
How to Clear Code
Possible Causes
with corrective
actions/checks
Reason
Performance Limits
Corrective Action
Possible Causes
with corrective
actions/checks
© BT Prime-Mover, Inc.
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Code C42 - Battery Overvoltage Warning
Voltage at transistor controller B+ connection over 30V.
Truck functions are allowed unless the voltage was above 34V, in which case the truck must be restarted (error
142, see page 186, may be displayed.)
Code is cleared when voltage recovers.
1. High battery voltage.
a. Check for proper voltage; charge battery may be overcharged.
2. Extreme regenerative motor braking.
3. Battery charger plugged into truck.
Code C43 - Transistor Controller Thermal Cutback
High or low temperature (such as above 185 degrees F [85 degrees C] or below -13 degrees [25 degrees C] at
transistor controller heat sink.
Truck functions may be allowed.
Code is cleared when transistor controller heat sink temperature recovers (see item 7 on
1. Operating in extreme environment.
2. Excessive load on truck.
a. Check brake adjustment (see
b. Reduce value of parameters 2, 3 and/or 4 to help decrease motor temperature.
3. Improper transistor controller mounting.
4. Bad transistor controller.
High traction motor temperature detected.
Truck functions are allowed, but maximum speed value sent to transistor controller is reduced.
Code is cleared when temperature recovers.
1. Operating in extreme environment.
2. Excessive load on truck.
a. Check brake adjustment (see
b. Reduce value of parameters 2, 3 and/or 4 to help decrease motor temperature.
3. Air flow to motor restricted.
4. Problem with motor wiring.
5. Bad traction motor.
Code C46 - Severe Traction Motor Thermal Cutback
Very high traction motor temperature or extreme operation detected.
Same as error code 44.
Same as error code 44.
Same as error code 44.
Master Service Manual
F-code
PT
Version no
002
.
page 111 )
.
page 111 )
2006-12-12
Section C-code
S5.0 5000
Electrical Functions
T-code
SMX
.
page 191 )
183