UMC_a004 — Input Over Voltage
Full alert identifier: UMC_a004_inputOverVoltage
Alert description
UMC AC input voltage exceeded upper limit
Potential impact
UMC will not allow charging until AC input voltage is within 90-300 V RMS
Set condition
UMC input voltage has risen above 300 V RMS
Clear condition
UMC input voltage has fallen below 300 V RMS
Signals to check
These diagnostic fields are associated with UMC_a004. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
Input Neutral Voltage
UMC_
|
V |
Input Voltage
UMC_
|
V |
Line Voltage
UMC_
|
Vrms |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of UMC_a004.