Mitsubishi Electric Q26UD(E)HCPU User Manual page 623

(b) QnUDVCPU
The battery life differs depending on the use of an extended SRAM cassette and the power-on time ratio.
Extended SRAM
CPU module
cassette
Unused
Q4MCA-1MBS
Q4MCA-2MBS
Q03UDVCPU
Q4MCA-4MBS
Q4MCA-8MBS
Power-on
*1
time ratio
Guaranteed value
41,400 hours
0%
4.72 years
30%
50%
43,800 hours
5.00 years
70%
100%
26,600 hours
0%
3.03 years
38,000 hours
30%
4.33 years
50%
43,800 hours
70%
5.00 years
100%
23,100 hours
0%
2.63 years
33,000 hours
30%
3.76 years
50%
43,800 hours
70%
5.00 years
100%
17,400 hours
0%
1.98 years
24,800 hours
30%
2.83 years
34,800 hours
50%
3.97 years
70%
43,800 hours
5.00 years
100%
11,000 hours
0%
1.25 years
15,700 hours
30%
1.79 years
22,000 hours
50%
2.51 years
36,600 hours
70%
4.17 years
43,800 hours
100%
5.00 years
Battery life
Q6BAT
Actual service value
(Backup power time after
*2
*3
(Reference 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
APPENDICES
After SM52 turned on
*4
an alarm )
600 hours
25 days
600 hours
25 days
600 hours
25 days
600 hours
25 days
600 hours
25 days
621
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