Publication 1756-UM001G-EN-P - January 2007
Maintain the Battery
125
Do not decrease the time after the BAT LED turns on.
IMPORTANT
If the BAT LED turns on when you apply power to the controller, the remaining
battery life may be less than this table indicates. Some of the battery life may
have been used up while the controller was off and unable to turn on the BAT
LED.
Worst-case Estimates of 1756-BA1 Battery Life
Controller
Temperature
Time Before BAT LED Turns On
Time after BAT LED turns on
and Power Is Cut Off
Power off 100%
Power off 50%
Yearly
decrease
1756-L55M12
1756-L55M13
60 °C (140 °F)
57 days
110 days
23%
69 hours
25 °C (77 °F)
63 days
123 days
17%
76 hours
0 °C (32 °F)
60 days
118 days
17%
73 hours
1756-L55M14
60 °C (140 °F)
29 days
57 days
23%
35 hours
25 °C (77 °F)
30 days
61 days
17%
37 hours
0 °C (32 °F)
24 days
48 days
17%
30 hours
1756-L55M16
60 °C (140 °F)
15 days
30 days
23%
18 hours
25 °C (77 °F)
13 days
27 days
17%
16 hours
0 °C (32 °F)
6 days
12 days
36%
7 hours
1756-L55M22
1756-L55M23
Use the values for the 1756-L55M13 controller.
1756-L55M24
Use the values for the 1756-L55M14 controller.
1756-L63
60 °C (140 °F)
22 days
43 days
23%
6 hours
25 °C (77 °F)
21 days
42 days
17%
28 hours
0 °C (32 °F)
14 days
28 days
17%
2.5 days
Summary of Contents for controllogix 1756-L55M12
Page 4: ...Publication 1756 UM001G EN P January 2007 Summary of Changes 4 Notes...
Page 10: ...Publication 1756 UM001G EN P January 2007 10 Notes...
Page 66: ...Publication 1756 UM001G EN P January 2007 66 Place Configure and Monitor I O Modules Notes...
Page 82: ...Publication 1756 UM001G EN P January 2007 82 Develop Applications Notes...
Page 122: ...Publication 1756 UM001G EN P January 2007 122 Maintain Nonvolatile Memory Notes...
Page 130: ...Publication 1756 UM001G EN P January 2007 130 Maintain the Battery Notes...
Page 134: ...Publication 1756 UM001G EN P January 2007 134 LED Indicators Notes...
