Rockwell Automation 1756-XXXX ControlLogix Digital I/O Modules - Manual (Page 233)

Rockwell Automation Publication 1756-UM058G-EN-P - November 2012 233
Appendix
D
Choose a Correct Power Supply
Use the chart to determine the power your ControlLogix chassis is using to
prevent an inadequate power supply. We recommend that you use this worksheet
to check the power supply of each ControlLogix chassis used.
Slot
Number Module
Cat. No. Current @
5.1V DC (mA) Power @
5.1V DC (Watts) Current @
24V DC (mA) Power @
24V DC (Watts) Current @
3.3V DC (mA) Power @
3.3V DC (Watts)
0 x 5.1V = x 24V = x 3.3V =
1 x 5.1V = x 24V = x 3.3V =
2 x 5.1V = x 24V = x 3.3V =
3 x 5.1V = x 24V = x 3.3V =
4 x 5.1V = x 24V = x 3.3V =
5 x 5.1V = x 24V = x 3.3V =
6 x 5.1V = x 24V = x 3.3V =
7 x 5.1V = x 24V = x 3.3V =
8 x 5.1V = x 24V = x 3.3V =
9 x 5.1V = x 24V = x 3.3V =
10 x 5.1V = x 24V = x 3.3V =
11 x 5.1V = x 24V = x 3.3V =
12 x 5.1V = x 24V = x 3.3V =
13 x 5.1V = x 24V = x 3.3V =
14 x 5.1V = x 24V = x 3.3V =
15 x 5.1V = x 24V = x 3.3V =
16 x 5.1V = x 24V = x 3.3V =
Totals mA W (1) mA W (2) mA W (3)
This number
cannot exceed the
following:
10000 mA for
1756-PA72, 1756-
PB72
13000 mA for
1756-PA75,
1756PB75, 1756-
PC75, 1756-PH75 This number
cannot exceed
2800 mA This number
cannot exceed
4000 mA
These three wattage values (1, 2, 3), added together, cannot exceed 75 W @ 60 °C (140 °F) for any power supply.