PCS2REXB_a148 — Ac Relay Voltage Irrational

Full alert identifier: PCS2REXB_a148_acRelayVoltageIrrational

Alert description

The Power Conversion System (PCS2) detects the voltage sensor readings before and after the AC relay does not match the expected behavior of the given AC relay state.

Potential impact

DCAC functionality may be limited or paused.

Set condition

The AC relay voltage difference exceeds the expected threshold.

Clear condition

The AC relay voltage difference is within the expected threshold.

Signals to check

These diagnostic fields are associated with PCS2REXB_a148. Check the alert's Alert Log in Service Mode Plus for available values.

Signal	Unit
Ac Relay State `PCS2REXB_a148_acRelayState` 0 NOT DRIVEN 1 NOT DRIVE STARTUP 2 DRIVE STARTUP 3 DRIVE STARTUP RAMP DOWN 4 DRIVEN	—
L 1 N Post Relay Voltage `PCS2REXB_a148_l1nPostRelayVoltage`	V
L 2 N Post Relay Voltage `PCS2REXB_a148_l2nPostRelayVoltage`	V
L 2 N Pre Relay Voltage `PCS2REXB_a148_l2nPreRelayVoltage`	V
L 3 N Post Relay Voltage `PCS2REXB_a148_l3nPostRelayVoltage`	V
L 3 N Pre Relay Voltage `PCS2REXB_a148_l3nPreRelayVoltage`	V

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of PCS2REXB_a148.