Chapter 5 Battery MASTER-K
5-1
5 Battery
5.1 Specifications
Item Description
Rated voltage 3.0VDC
Lifetime 5 years
Purpose User program and data back-up, RTC operation during power-off
Type Lithium battery, 3VDC
Dimension (mm)
φ 14.5 × 26
5.2 Handling instructions
1) Do not heat or solder the terminals of battery.
2) Do not measure its voltage with a tester, or short circuit.
3) Do not disassemble
Caution
The K200S CPU module does not have super capacitor or other device to backup during
battery replacement. Therefore, the user program and latch area will be erased if the battery
is removed while the power is off. Make sure to turn on the power of CPU during battery
replacement.
Remark
The K300S and K1000S CPU modules have super capacitor to back-up during battery
replacement. The super capacitor can backup the user program and latch area about 30
minutes. However, be careful to finish battery replacement as soon as possible.
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