System loading worksheet, Current loading – Rockwell Automation 1762-Lxxxx MicroLogix 1200 Programmable Controllers User Manual

Page 150

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Publication 1762-UM001G-EN-P - March 2011

F-8 System Loading and Heat Dissipation

System Loading Worksheet

The tables below are provided for system loading validation for 40-point
Controllers. See System Current Loading Example Calculations (40-point
Controller) on page F-6.

Current Loading

Table F.13 Calculating the Current for MicroLogix Accessories

Catalog Number

Device Current Requirements

Calculated Current

at 5V dc (mA)

at 24V dc (mA)

at 5V dc (mA)

at 24V dc (mA)

1761-NET-AIC

(1)

when powered by the base unit

communications port, selector switch in the up position

0

120

Subtotal 1:

(1) This is an optional accessory. Current is consumed only if the accessory is installed.

Table F.14 Calculating the Current for Expansion I/O

Catalog Number

(1)

n

A

B

n x A

n x B

Number of
Modules

Device Current Requirements

Calculated Current

at 5V dc (mA)

at 24V dc (mA)

at 5V dc (mA)

at 24V dc (mA)

1762-IA8

50

0

1762-IQ8

50

0

1762-IF4

40

50

1762-IF2OF2

40

105

1762-IQ16

70

(2)

0

1762-IQ32T

170

0

1762-IR4

40

50

1762-IT4

40

50

1762-OA8

115

0

1762-OB8

115

0

1762-OB16

175

0

1762-OB32T

175

0

1762-OF4

40

165

1762-OV32T

175

0

1762-OW8

80

90

1762-OW16

140

(2)

180

(2)

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