Mitsubishi Electric MELSEC Q Series User Manual page 199

Programmabale web server module

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Table of Contents

4 SET-UP AND PROCEDURE BEFORE OPERATION

Battery replacement

Power off the programmable controller.

Remove the web server module from

the base unit.

Open the cover of the web server

Remove the old battery from its

Insert a new battery into the holder

correctly. Connect the lead to the

Close the cover of the web server

Mount the web server module onto

the base unit.

Power on the programmable controller.

Monitor buffer

memory address 7 to check the

ON/OFF status.

The web server module battery is

(3) Web server module battery replacement

When the Web server module battery has been exhausted, replace the battery

with a new one according to the procedure shown below.

The programmable controller must be powered on for 10 minutes or more before

removing the battery.

Even if the battery is removed, the memories are backed up by the capacitor for

a while. However, if the replacement time exceeds the limit specified in the table

below, data stored in the memories may be erased. To prevent this, replace the

battery quickly.

Backup time by capacitor

Backup time by capacitor [min]

Battery connector

Melsec qj71ws96