PCS2REXA_a146 — Ac Line Shared Current Connection Issue

Full alert identifier: PCS2REXA_a146_acLineSharedCurrentConnectionIssue

Alert description

The Power Conversion System (PCS2) detects that the DCAC converter's shared leg current is not shared evenly when the legs are shorted by either the AC harness or the AC relay.

Potential impact

The DCAC converters will have reduced power capabilities.

Set condition

The shared leg current difference exceeds the expected threshold.

Clear condition

The shared leg current is an even split of the total current.

Signals to check

These diagnostic fields are associated with PCS2REXA_a146. Check the alert's Alert Log in Service Mode Plus for available values.

Signal	Unit
Ac Harness L 2 L 3 Shorted `PCS2REXA_a146_ac_harness_l2_l3_shorted`	—
Leg 1 Irms `PCS2REXA_a146_leg1_Irms`	A
Leg 2 Irms `PCS2REXA_a146_leg2_Irms`	A
Leg 3 Irms `PCS2REXA_a146_leg3_Irms`	A
Leg N Irms `PCS2REXA_a146_legN_Irms`	A
Legs Paralleled By Relay `PCS2REXA_a146_legs_paralleled_by_relay`	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of PCS2REXA_a146.