Mitsubishi MELSEC Q Series User Manual

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5.7 Battery Specifications, Installation and Replacement
5.7.3 Replacing battery
5
SETTINGS AND PROCEDURES BEFORE OPERATION
(4) C Controller module battery replacement procedure
When the C Controller module battery has reached its end of life, replace it by the
following procedure.
Before removing the battery, keep the C Controller system ON for 10 minutes or more.
Even if the battery is removed, the memory is backed up by the capacitor for some
time. However, replace the battery quickly since the memory contents may be erased
if the replacement time exceeds the guaranteed value shown below.
Table5.9 Backup time
Backup time
3 minutes
Figure 5.34 Battery replacement procedure
Battery
C Controller module
Battery replacement
Turn off the C Controller system
power.
Remove the C Controller module
from the base unit.
Open the cover of the C Controller
module.
Take the old battery out of the holder.
Insert a new battery in the correct
orientation, and connect the lead
connector to the connector.
Close the cover of the C Controller
module.
Turn on the C Controller system
power.
Install the C Controller module on the
base unit.
Check for battery error.
Battery error occurs.
Battery error does not occur.
C Controller module battery is faulty.
Completed
Back up the data.
C Controller side
connector
Battery side
connector

Mitsubishi MELSEC Q Series Specifications

General

Brand	Mitsubishi
Model	MELSEC Q Series
Category	Controller
Language	English