SDCREL_a019 — Historical Fault Currents

Full alert identifier: SDCREL_a019_historicalFaultCurrents

Alert description

Secondary disconnect controller (SDC) detected abnormal electrical currents during a previous power-ON state. Data retrieved from electrically erasable programmable read-only memory (EEPROM).

Potential impact

Drive unit may not be functional due to previous electrical issue.

Set condition

SDC detected abnormal electrical currents when drive inverter (DI) was not switching as expected during a previous power cycle.

Clear condition

SDC completes successful power-ON self-test.

Signals to check

These diagnostic fields are associated with SDCREL_a019. Check the alert's Alert Log in Service Mode Plus for available values.

Signal	Unit
Avg Ia `SDCREL_a019_avgIa`	A
Avg Ib `SDCREL_a019_avgIb`	A
Fault Reason Fault Currents At Speed `SDCREL_a019_faultReason_faultCurrentsAtSpeed`	—
Fault Reason Propagating 3 PS `SDCREL_a019_faultReason_propagating3PS`	—
Fault Reason Unmitigated UCR `SDCREL_a019_faultReason_unmitigatedUCR`	—
Imbalance Seen `SDCREL_a019_imbalanceSeen`	—
Max Abs Currents `SDCREL_a019_maxAbsCurrents`	A
Max Abs Elc Speed `SDCREL_a019_maxAbsElcSpeed`	Hz

Show 5 more fields

Signal	Unit
Phase Voltage Present `SDCREL_a019_phaseVoltagePresent`	—
Speed From Voltage `SDCREL_a019_speedFromVoltage`	—
Speed Was Valid `SDCREL_a019_speedWasValid`	—
Transient Handling `SDCREL_a019_transientHandling` 0 ALL SKIPPED 1 SKIPPED 3PS 2 3PS EARLY EXIT 3 3PS WAITED	—
Ucr Seen `SDCREL_a019_ucrSeen`	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of SDCREL_a019.