Appendix 4.2 Battery Lives Of Cpu Modules - Mitsubishi Electric Q26UD(E)HCPU User Manual

Appendix 4.2
(1) Battery (Q6BAT) lives of Basic model QCPUs
CPU module
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°C, which is calculated based on the characteristic values of
manufacturer-supplied memory (SRAM) and on the assumption of storage within the ambient temperature range of
-25 to 75°C (operating ambient temperature of 0 to 55°C ).
*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°C. This value is intended for reference only, as it varies with characteristics of the
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.
Battery lives of CPU modules
Power-on time
Guaranteed
*1
ratio
value
26,000 hours
0%
2.96 years
37,142 hours
30%
4.23 years
50%
43,800 hours
70%
5.00 years
100%
26,000 hours
0%
2.96 years
37,142 hours
30%
4.23 years
50%
43,800 hours
70%
5.00 years
100%
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
Battery life
Actual service value
*2
(Reference value)
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
APPENDICES
After SM52 turned on
(Backup power time
*3
*4
after an alarm )
710 hours
30 days
710 hours
30 days
420 hours
18 days
603
A