Calculate Total Power For Your Micro830/Micro850 Controller - Allen-Bradley Micro830 User Manual

Rockwell Automation Publication 2080-UM002G-EN-E - March 2015
System Loading
Micro830 and Micro850 Power Requirements
Controller/Module
Micro830 and Micro850
(without plug-in/expansion I/O)
10/16-point
24-point
48-point
Plug-in modules, each
Expansion I/O
(system bus power consumption)

Calculate Total Power for Your Micro830/Micro850 Controller

To calculate Total Power for your Micro830 and Micro850 controller, use the
following formula:
Total Power =Main Unit Power + No. of Plug-ins * Plug-in Power + Sum
of Expansion I/O Power
Example 1:
Derive Total Power for a 24-point Micro830 controller with two plug-ins.
Total Power = 8 W+ 1.44 W * 2 + 0 = 10.88 W
Example 2:
Derive Total Power for a 48-point Micro850 controller, with 3 plug-ins, and
2085-IQ16 and 2085-IF4 expansion I/O modules attached.
Total Power = 11 W + 3*1.44 W + 0.85 W + 1.7 W = 17.87 W
Power Requirement
5 W
8 W
11 W
1.44 W
2085-IQ16 – 0.85 W
2085-IQ32T – 0.95 W
2085-IA8 – 0.75 W
2085-IM8 – 0.75 W
2085-OA8 – 0.90 W
2085-OB16 – 1.00 W
2085-OV16 – 1.00 W
2085-OW8 – 1.80 W
2085-OW16 – 3.20 W
2085-IF4 – 1.70 W
2085-IF8 – 1.75 W
2085-OF4 – 3.70 W
2085-IRT4 – 2.00 W
G
Appendix
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