Mitsubishi Electric Q13UDVCPU - Page 629

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APPENDICES
A
Appendix 4 Battery Life Appendix 4.2 Battery lives of CPU modules
CPU module
Extended SRAM
cassette
Power-on
time ratio
*1
Battery life
Q8BAT
Guaranteed value
*2
Actual service value
(Reference value)
*3
After SM52 turned on
(Backup power time after
an alarm
*4
)
Q03UDVCPU
Not used
0%
43,800 hours
5.00 years
43,800 hours
5.00 years
600 hours
25 days
30%
50%
70%
100%
Q4MCA-1MBS
0%
30%
50%
70%
100%
Q4MCA-2MBS
0%
30%
50%
70%
100%
Q4MCA-4MBS
0%
30%
50%
70%
100%
Q4MCA-8MBS
0%
30%
50%
70%
100%