SDCR_a027 — Di CAN MIA
Full alert identifier: SDCR_a027_diCanMIA
Some fields retain information from an earlier alert reference.
Alert description
Drive inverter (DI) controller area network (CAN) communication to the secondary disconnect controller (SDC) is missing (MIA).
Potential impact
SDC is relying on universal asynchronous receiver-transmitter (UART) data from DI to assess DI presence.
Set condition
SDC is not receiving all expected CAN frames from DI.
Clear condition
SDC receives all expected CAN frames from DI.
Signals to check
These diagnostic fields are associated with SDCR_a027. Check the alert's Payload in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
Lv State
SDCR_
|
— |
Power
SDCR_
|
— |
Timeout
SDCR_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of SDCR_a027.