Driver error word

This article covers the description of /driver/error.

If the error is not zero, the critical error has occurred and the control falls into the fail-safe state. The error might be raised either during start-up self-diagnostics, or during run-time. This condition is non recoverable and the user intervention is necessary to bring the driver back on (i.e. controller reboot, power cycle, or reinit trigger).

If the error is non-zero, all the transistors are immediately cut off and the motor is not driven. The error is also stored and logged in permanent memory.

Decode the error

Enter your error code to decode it:

Enter Error Code:  

You can also use decode-error from the SWTools to decode the error. You will get the same result as here.

How to understand the error

note

level E stage 0 pass 0 : phase C negative overcurrent

The level, stage, and pass values are reserved for detailed examination of the diagnostic process which raised the error.

tip

If you got an error, you can try to disconnect everything (motor, GPIOs, CAN-bus, etc.) and restart the controller. Without the motor, the controller perform more detailed self-diagnostics. If the error persists, the problem is likely within the controller. If the error is gone, the problem is likely in the motor, cable harness or other appliances involved.

Individual phase errors

All these errors start with Phase A, B, or C. The error is followed by problem on that phase.

Error	Description
Phase X VM	Voltage Measurement error on phase X
Phase X Short to B+	Phase is shorted to Battery +
Phase X Short to B-	Phase is shorted to Battery -
Phase X Short B- / CM	Phase is shorted to Battery - or Current measurement error
Phase X CM	Current measurement error on phase X
Phase X CM LO/HI	Current measurement offset difference between low and high state of phase.
Phase X CM charge	Current measurement power supply error
Phase X CM boot	Current measurement bootstrap big leakage current
Phase X SW	Phase is not switching
Phase X SW to B-	Phase is not switching to Battery -
Phase X SW to B+	Phase is not switching to Battery +
Phase X SW boot	Transistor bootstrap big leakage current
Phase X Negative overcurrent	Short circuit on phase
Phase X Positive overcurrent	Short circuit on phase
Phase X gate driver error	Transistor driver report error (saturation protection) (Not an all controllers)

Phases differences

Error	Description
Phase A/B (A/C) (B/C) VM diff	Voltage measurement difference between phases
Phase A/B (A/C) (B/C) CM diff	Current measurement offset difference between phases
Phase A or C CM	Current measurement error on phase A or C

Input voltage

tip

• If you see these errors, the problem is usually with battery BMS or battery itself.
• If you use power supply (and you should not), the power supply is not able to provide enough current. (or you try regenerate)

Error	Description
Input voltage Abs min	Battery voltage is below the Critical undervoltage (during runtime)
Input voltage Abs max	Battery voltage is above the Critical overvoltage (during runtime)
Input voltage Abs diff	Battery voltage changes too fast. Usually when battery is disconnected during runtime. (during runtime)
Input voltage Out of range	Voltage is outside operating range (only during init)
Input voltage Out of range LO	Voltage is below Minimum working voltage (only during init)
Input voltage Out of range HI	Voltage is above Maximum working voltage (only during init)

Trivial values for the error

Preinit errors

These errors are raised during the initialization of the driver. (Not during runtime)

Special error n	Error HEX	Description
-11	0x7FF5	Overvoltage - battery voltage was above Critical error voltage
-12	0x7FF4	Undervoltage or SMPS off - battery voltage was below Critical error undervoltage
-13	0x7FF3	All phases to GND or SMPS off
-14	0x7FF2	Powered from the motor
-15	0x7FF1	Voltage fluctuation
-16	0x7FF0	ADC error

Other trivial values

Special error n	Error HEX	Description
65534	0x7FFE	Service running (identrun, identlin, ...)
65535	0x7FFF	Driver de-initialized

Error decode schema

Error decode schema