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Agile Controller EEM V200R010C10 Alarm Handling

This document provides the explanations, causes, and recommended actions of alarms on the EEM.
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DCU_103104452 Alarm About Low Voltage of the RTC Battery of the DCU

DCU_103104452 Alarm About Low Voltage of the RTC Battery of the DCU

Description

When the voltage of the RTC battery is lower than 2500 mV, this alarm is generated.

Attribute

Alarm ID Alarm Severity Alarm Type

103104452

Major

Device alarm

Impact on the System

The RTC battery power is insufficient, causing DCU power-off. Clock information cannot be recorded after DCU power-off.

Possible Causes

  • The DCU has no RTC battery installed or the RTC battery is not fastened.
  • The RTC battery power will be exhausted.

Procedure

  1. Check whether the DCU has the RTC battery installed.
    • If so, go to 2.
    • If not, reinstall the RTC battery and check whether the alarm is cleared.
  2. Check whether the RTC battery is installed correctly.
    • If so, go to 3.
    • If not, reinstall the RTC battery and check whether the alarm is cleared.
  3. The RTC battery power will be exhausted. You are advised to replace the RTC battery immediately.

Clearing

After the fault is rectified, the system clears the alarm.

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Updated: 2019-03-07

Document ID: EDOC1100053923

Views: 8419

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