Replacing Battery - Mitsubishi MELSEC-Q Series User Manual

5
SETTINGS AND PROCEDURES BEFORE OPERATION

5.7.3 Replacing battery

This section explains the replacement of the C Controller module battery.
The battery of the C Controller module is used for standard ROM file protection and
backup of the battery-backed-up RAM data and clock data.
The battery must be replaced when the voltage of the C Controller module battery
becomes low.
(1) Checking for low C Controller module battery voltage
5
- 34 5.7 Battery Specifications, Installation and Replacement
5.7.3 Replacing battery
(a) Setting for detection of low battery voltage
1) In the Error check area on the <<System settings>> tab of the C Controller
setting utility, check "Battery check".
2) Click the
Write
setting utility to write the parameter to the C Controller module.
3) Reset the C Controller by the RESET/SELECT switch. (In a multiple CPU
system configuration, reset CPU No.1.)
A battery error can be detected by performing the above steps 1) to 3).
Figure 5.35 Setting for detection of low battery voltage
button on the <<Online operation>> tab of the C Controller