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UMC_a005 — Input Under Voltage

Full alert identifier: UMC_a005_inputUnderVoltage

Alert description

UMC AC input voltage is below lower limit

Potential impact

UMC will not allow charging until AC input voltage is within 90-300 V RMS

Set condition

UMC AC input voltage has fallen below 90 V RMS

Clear condition

UMC input voltage has risen above 90 V RMS

Signals to check

These diagnostic fields are associated with UMC_a005. Check the alert's Alert Log in Service Mode Plus for available values.

Signal Unit
Input Neutral Voltage UMC_a005_inputNeutralVoltage V
Input Voltage UMC_a005_inputVoltage V
Line Voltage UMC_a005_lineVoltage Vrms

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of UMC_a005.

Browse all UMC alert codes