Filter
Top Products
D SERIES CONTROLLER
TROUBLESHOOTING AND COMPONENT REPLACEMENT
2-26
K
a
a
aw
s
k
2.8 REPLACEMENT PROCEDURE FOR BATTERIES
This section describes the replacement procedure for the battery provided to backup data.
2.8.1 BATTERY ON 1KA BOARD
As backup power supply for SRAM and RTC (Real Time Clock), the 1KA board is equipped
with a lithium battery and an emergency super capacitor for use during battery replacement.
When on-board battery is removed, fully charged super capacitor can provide backup power
for only 15 minutes. Therefore, battery should be replaced immediately once the control
power is cut OFF.
1. Before replacing the battery, confirm that the new battery has +3.6V or more voltage.
2. Turn OFF the control power.
3. Remove the battery connector of the 1KA and pull out the battery from the holder. When
it is hard to work on, pull out the 1KA. For more details about pulling out the board,
refer to 2.2.1 1KA Board (User I/F Board).
4. After installing the new battery to the holder, connect the battery connector. If the 1KA
was pulled out, put it back to the original place.
CAUTION
！
To prevent data erasion, be sure to save program data
as soon as it is completed.
1KK board
1KN/1QN board
IP board
Battery
CN8
CN9
CN11
Battery
connector
CN2
CN3
CN10
CN4
CN5
CN7
CN6
SW1
1KJ/1QJ
board
SW2