Mitsubishi Melsec-Q Series User Manual page 268

11.3.2 Battery lives of CPU modules
(1) Battery (Q6BAT) lives of Basic model QCPUs
CPU module
model
Q00JCPU
Q00CPU
Q01CPU
*1: The power-on time ratio indicates the ratio of programmable controller power-on time to one day (24 hours).
(When the total power-on time is 12 hours and the total power-off time is 12 hours, the power-on time ratio is 50%.)
*2: The guaranteed value represents a battery life at 70
manufacturere-supplied memories (SRAM) and on the assumption of storage within the ambient temperature range of -25
to 75 (operating ambient temperature of 0 to 55
*3: The actual service value (reference value) represents a battery life that is calculated based on the values measured at
storage ambient temperature of 40
memory.
*4: In the following status, the backup time after power off is 3 minutes.
•The battery connector is disconnected.
•The lead wire of the battery is broken.
11 - 8
Table11.6 Battery life
Power-on time
Guaranteed value
*1
ratio
26,000 hours
0%
2.96 years
37,142 hours
30%
4.23 years
43,800 hours
50%
5.00 years
43,800 hours
70%
5.00 years
43,800 hours
100%
5.00 years
26,000 hours
0%
2.96 years
37,142 hours
30%
4.23 years
43,800 hours
50%
5.00 years
43,800 hours
70%
5.00 years
43,800 hours
100%
5.00 years
5,600 hours
0%
0.63 years
8,000 hours
30%
0.91 years
11,200 hours
50%
1.27 years
18,666 hours
70%
2.13 years
43,800 hours
100%
5.00 years
. This value is intended for reference only, as it varies with characteristics of the
Battery life
Actual service
value (Reference
*2
value)
43,800 hours
5.00 years
43,800 hours
5.00 years
43,800 hours
5.00 years
43,800 hours
5.00 years
43,800 hours
5.00 years
43,800 hours
5.00 years
43,800 hours
5.00 years
43,800 hours
5.00 years
43,800 hours
5.00 years
43,800 hours
5.00 years
25,175 hours
2.87 years
35,964 hours
4.10 years
43,800 hours
5.00 years
43,800 hours
5.00 years
43,800 hours
5.00 years
, which is calculated based on the characteristic values of
).
After SM52 turned
on. (Backup power
time after an
*3
*4
alarm )
710 hours
30 days
710 hours
30 days
710 hours
30 days
710 hours
30 days
710 hours
30 days
710 hours
30 days
710 hours
30 days
710 hours
30 days
710 hours
30 days
710 hours
30 days
420 hours
18 days
420 hours
18 days
420 hours
18 days
420 hours
18 days
420 hours
18 days