VCREAR_a209 — Pcs Ov Clamp Self Testfailure

Full alert identifier: VCREAR_a209_pcsOvClampSelfTestfailure

Alert description

The Power Conversion System (PCS) Overvoltage (OV) Clamp Protection Circuit self-test is unsuccessful due to circuit voltage readings outside of the normal operating range, which may prevent the circuit from operating as expected.

Potential impact

The PCS OV Clamp Protection Circuit may not function as expected.

Set condition

The PCS OV Clamp Protection Circuit self-test is unsuccessful because the circuit voltage readings are outside of the normal operating range.

Clear condition

The PCS OV Clamp Protection Circuit self-test is successful.

Signals to check

These diagnostic fields are associated with VCREAR_a209. Check the alert's Alert Log in Service Mode Plus for available values.

Signal	Unit
Failure Reason `VCREAR_a209_failureReason` 0 NONE 1 LS1 TIMEOUT 2 LS2 TIMEOUT	—
Pcba Temperature `VCREAR_a209_pcbaTemperature` 2047 SNA	degC
Raw Clamp Voltage `VCREAR_a209_rawClampVoltage`	V
Tvs Diode Voltage `VCREAR_a209_tvsDiodeVoltage`	V
Vbus 48 V `VCREAR_a209_vbus48V`	V

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCREAR_a209.