7. MEMORY CASSETTE AND BATTERY
7 - 7
MELSEC-
7.2 Battery
!
DANGER
•
Connect the battery correctly. Do not perform charging, disassembly, heating, throwing into fire,
short-circuit, soldering and so on.
Handling the battery incorrectly may cause injuries or a fire due to overheating, blowout, ignition
and so on.
This section describes the specifications, handling instructions, and installation
procedure for the battery.
7.2.1 Specifications
Table 7.3 shows specifications of the battery used to retain the data stored in
memory when a power interruption occurs.
Table 7.3 Battery specifications
Model
Item
A6BAT
Classification Thiony chloride lithium battery
Normal voltage 3.6 V DC
Guaranteed life 5 years
Application For IC-RAM memory backup and power interruption compensation function
External dimensions [mm (in.)]
φ
16 (0.63)
×
30 (1.18)
7.2.2 Installation of the battery
The battery lead connector is disconnected from the battery connector on the
AnSHCPU board to prevent discharge during transportation and storage.
Before starting the AnSHCPU, plug the battery connector into the battery connector
on the AnSHCPU board.
•
To use a sequence program stored in the user program area in the AnSHCPU if
a power interruption occurs.
•
To retain the data if a power interruption occurs.
A1SHCPU
A6BAT
Battery
connector
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