Battery; Part Names; Specifications; Battery Attachment - Mitsubishi Electric MELSEC iQ-F FX5U User Manual

8.3

Battery

Part names

The Latch device memory and clock data upon power interruption. The battery is not incorporated in the CPU module during
shipment from the factory. Order it if necessary. Parameter setting is required to back up the device memory and clock data.
(Page 149 Setting an optional battery using the engineering tool)
External appearance
(2) FX3U-32BL
LOT.14X
............

Specifications

The following shows functional specifications of the battery.
Item
Battery type
Nominal voltage
Life
*1 The life of the battery changes with respect to ambient temperature. (Page 150 Battery life and replacement guidelines)

Battery attachment

The battery is not incorporated in the CPU module during shipment from the factory. To use the battery, attach it following the
procedure below. Parameter setting is required to back up the device memory and clock data using the battery. (Page
149 Setting an optional battery using the engineering tool)
Attachment procedure
1.
Turn the power supply off.
2.
Remove the expansion board connector cover (A in figure below). If an expansion board is installed, remove it.
2
8 MAINTENANCE AND INSPECTION
148
8.3 Battery
No.
(1)
(2)
(1)
A
5
Name Description
Connector Connected to the battery connector of the CPU module.
Nameplate Displays the model name and lot number.
FX3U-32BL
Lithium manganese dioxide battery
3.0 V
Standard life: 5 years (at ambient temperature of 25 (77))
*1