Rockwell-automation 1746-NI16V SLC 500 Analog Input Modules User Manua User Manual download pdf (Page 25)

Publication 1746-UM001A-US-P

Installation and Wiring 3-3

1746-NI16 Power

Requirements

The 1746-NI16 module receives its power through the SLC 500™

chassis backplane from the fixed or modular +5V dc/+24V dc chassis

power supply. The +5V dc backplane supply powers the SLC circuitry,

and the +24V dc backplane supply powers the module analog

circuitry. The maximum current drawn by the module is shown in the

table below.

When you are using a modular system configuration, add the values

shown in the table above to the requirements of all other modules in

the SLC chassis to prevent overloading the chassis power supply.

When using a fixed system controller, see “Fixed Expansion Chassis

Considerations” on page 3-3.

Module Location in Chassis

Modular Chassis Considerations

Place your 1746-NI16 module in any slot of an SLC 500 modular, or

modular expansion chassis, except for the extreme left slot (slot 0) in

the first chassis. This slot is reserved for the processor or adapter

modules.

Fixed Expansion Chassis Considerations

The chart on page 3-4 depicts the range of current combinations

supported by the fixed I/O expansion chassis. To use it, first find the

backplane current draw and operating voltage for both of the modules

you plan to use in the chassis. The table on page 3-4 shows these

specifications.

5V dc Amps 24V dc Amps

0.125 0.075

ATTENTION

For applications using the upper limit of the

operating temperature range, the 1746-NI16 module

(or multiple 1746-NI16 modules) should be placed in

the right most slot(s) of the chassis. The specification

for operating temperature is:

Operating Temperature Range

C to 60

C (32

F to 140

F) in any slot except slot 0

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 119 120

No comments

Rockwell-automation 1746-NI16V SLC 500 Analog Input Modules User Manua User Manual Page 25