Section 6. Messages and Codes
Model 4700 Maintenance Manual
Fault Codes Refer to the “Pinout Matrix” located in Theory of Operation section for all voltage and resistance values and component interconnection. Code
Description
Notes/Corrective Action
61
Code 61: Slave TPA Internal Fault The Slave TPA has detected an internal fault.
Check voltage to the TPA. If OK, replace the TPA.
62
Code 62: Slave TPA Internal Fault Fault in the area of memory where the adjustable parameters are stored.
If code does not clear by cycling Key switch, replace the TPA. If code clears, the adjustable parameters have been reset to default values and require resetting to customer’s requirements via FlashWare.
63
Code 63: Slave TPA Internal Fault The power amplifier has detected an internal fault.
Check voltage to the TPA. If OK, replace the TPA.
64
Code 64: Slave TPA Internal Fault Correct current draw by the motor is not seen by the TPA.
Check voltage to the TPA. Check motor cables for continuity and correct torque. Compare current from all 3 phases. If one phase is significantly higher or lower than the other two, replace the motor. If OK, replace the TPA.
65
Code 65: Slave TPA Detected Battery Sense Out-of-Range The Slave TPA monitors the battery voltage at B+Key. If voltage does not match configured voltage or is below set threshold, this code is displayed. The TPA also monitors the voltage on its internal capacitors. If voltage goes above 63VDC, this code is displayed.
Verify battery voltage. If wrong voltage, set correct voltage via FlashWare (and re-learn pots) or install correct voltage battery. If battery is correct but voltage is >63VDC, replace battery. Test the power cables to the motor for shorts to the truck frame and the other cables. Test the motor for shorts to frame. Resistance must be >1 Meg ohm. If OK, replace the TPA.
66
Code 66: Short in Slave TPA When the Key switch is turned ON, the Slave TPA momentarily powers each motor phase and monitors current. If current is seen when it should not be, this code is displayed.
Measure voltage and resistance across coil. Check cables to the motor and TPA for continuity and correct torque. Swap the connections from the TPA to the other traction motor using appropriately sized jumper cables and turn the Key switch ON. If code changes, replace the motor. If the code is still displayed, replace the TPA.
67
Code 67: Open in Slave TPA When the Key switch is turned ON, the Slave TPA monitors each motor phase for current draw. If current is not seen when it should be, this code is displayed.
Check voltage to the TPA. Check cables to the motor and TPA for continuity and correct torque. Swap the connections from the PPA and pump motor with the TPA and traction motor using appropriately sized jumper cables and turn the Key switch ON. If code changes, replace the motor. If the code is still displayed, replace the TPA.
6-18
Publication 1160093, Issued: 20 May 2013
