Mitsubishi MELSEC Q Series User Manual

5
SETTINGS AND PROCEDURES BEFORE OPERATION
5.7 Battery Specifications, Installation and Replacement
5.7.3 Replacing battery
5 - 35
1
OVERVIEW
2
SYSTEM CONFIGURATION
3
SPECIFICATIONS
4
FUNCTIONS
5
SETTING AND PROCEDURES
6
I/O NUMBER ASSIGNMENT
7
MEMORIES AND FILES
8
INSTALLING / UNINSTALLING
POINT
1. Use the battery within the period not exceeding the guaranteed battery life
value.
2. When it is expected that the guaranteed battery value will be exceeded,
perform the following actions.
• Perform shutdown procedures when powering off the C Controller
module.( Section 5.7.4 (2))
• Back up the data so that the data may be protected even if the battery is
depleted during power-off of the C Controller module.
3. When the battery (Q6BAT) is not connected to the C Controller module, its life
is 5 years.
4. After a battery error has occurred, replace the battery as soon as possible,
although the data is held within the "Guaranteed time after battery error
occurrence" described in Table5.8.
It is recommended to replace the battery periodically according to the
condition of use even if no battery error is detected.
(3) Battery error detection and log addition to event history
When the "Carry out battery check" box is checked in the Error check area on the
<<System setting>> tab of the C Controller setting utility, the C Controller module
detects an error and adds a log to the event history at the following timing.
• When the power is switched on
• When the C Controller module is reset
• Periodic check (checking by system)
Note that, if the battery error occurs again after it has been detected once, the C
Controller module does not detect the battery error again and does not add the log to
the event history until it is reset.

Mitsubishi MELSEC Q Series Specifications

General

Brand	Mitsubishi
Model	MELSEC Q Series
Category	Controller
Language	English