SEPS_a147 — Phase Disconnect Fault
Full alert identifier: SEPS_a147_phaseDisconnectFault
Alert description
The power steering motor phase disconnect signaled an error.
Potential impact
The motor is disqualified and rack control health is degraded.
Set condition
The phase disconnect detects an error condition (e.g. voltage out of range, communication issue, FET short).
Clear condition
The phase disconnect error condition must be cleared. A stable power supply is necessary. A DRIVE or CONDITIONING cycle is necessary for the error to be cleared.
Signals to check
These diagnostic fields are associated with SEPS_a147. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
Bridge Driver Undervolt
SEPS_
|
— |
Charge Pump Undervolt
SEPS_
|
— |
Fault Reset
SEPS_
|
— |
Invalid Command
SEPS_
|
— |
Last Msg Not Ok
SEPS_
|
— |
Neg Overcurrent
SEPS_
|
— |
Neg Undervolt
SEPS_
|
— |
Overcurrent Timer
SEPS_
|
— |
Show 11 more fields
| Signal | Unit |
|---|---|
Phase Disconnect Diag State
SEPS_
|
— |
Phase Disconnect MIA
SEPS_
|
— |
Pos Overcurrent
SEPS_
|
— |
Pos Undervolt
SEPS_
|
— |
Rev Batt Undervolt
SEPS_
|
— |
Spi Fault
SEPS_
|
— |
Temp Warning
SEPS_
|
— |
U Phase Undervolt
SEPS_
|
— |
V Phase Undervolt
SEPS_
|
— |
W Phase Undervolt
SEPS_
|
— |
Watchdog Fault
SEPS_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of SEPS_a147.