HVREX_a019 — Shunt Tcr Cal Not Used
Full alert identifier: HVREX_a019_ShuntTcrCalNotUsed
Alert description
The shunt thermal coefficient of resistance (TCR) calibrations are not being used for high voltage (HV) current sensing. The default shunt TCR coefficients will be used and current measurement accuracy may be reduced.
Potential impact
The default shunt TCR coefficients will be used for high voltage (HV) current sensing. Shunt current measurement accuracy may be reduced.
Set condition
The stored shunt bar resistance is invalid or the written gain is outside the allowed tolerance.
Clear condition
The stored shunt bar resistance is valid and the written gain is within the allowed tolerance.
Signals to check
These diagnostic fields are associated with HVREX_a019. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
Stored Coeff A Valid
HVREX_
|
— |
Stored Coeff B Valid
HVREX_
|
— |
Stored Coeff C Valid
HVREX_
|
— |
Stored Coeff D Valid
HVREX_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of HVREX_a019.