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Determine the Module's
Power Requirements
11
Install and Wire the Modules
This chapter describes procedures to install fast analog I/O modules in
an SLC 500 system. The procedures include the following tasks.
• determine the module's power requirements
• determine compatibility with other I/O modules
• configure input channels
• select the I/O rack slot
• install the module
• consider when wiring
– using system wiring guidelines
– grounding the cable
– determining cable length
• minimize electrical noise interference
• wire the module
• minimize ground loops
• label the terminal block
Analog modules require power from the 5V dc and 24V dc backplane
power supplies of the SLC 500 system. This table shows the backplane
power requirements for fast analog I/O modules.
Current Load
Catalog Number
1746-FIO4I
1746-FIO4V
Use this table to compute the module's portion of total load on the
modular system power supply.
For more information, refer to SLC 500 Systems Selection Guide,
publication 1747-SG001.
Current at 5V dc
55 mA
55 mA
Publication 1746-UM009B-EN-P - September 2007
2
Chapter
Current at 24V dc
150 mA
120 mA
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