PCS_a088 — Grid Freq Droop Detected
Full alert identifier: PCS_a088_gridFreqDroopDetected
Message shown in the car
Vehicle charging with off-grid Powerwall Charging rate adjusted to allow power sharing
Alert description
The Power Conversion System (PCS) electronic control unit (ECU) detects the electrical grid frequency droops below its nominal level, indicating the grid may be experiencing heavy loads.
Potential impact
AC charging power will be temporarily limited depending on the droop level to reduce the load on the electrical grid.
Set condition
The PCS ECU detects the electrical grid frequency droops below its nominal level.
Clear condition
AC charging is stopped.
Signals to check
Open this alert in Service Mode Plus and review the Payload tab. Use the field names below to identify the values shown by your vehicle.
| Signal | Unit |
|---|---|
Ph A Frequency
PCS_
|
Hz |
Ph B Frequency
PCS_
|
Hz |
Ph C Frequency
PCS_
|
Hz |
| Signal | Unit |
|---|---|
Grid Config
PCS_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of PCS_a088.