INSTALLATION MANUAL Manual

Chapter 7

Installing 1771 I/O

7-19

Figure 7.12

I/O Chassis Ground Bus Providing Ground Connection for Several Drain W

ires

I/O chassis

To central

ground bus

I/O chassis ground bus

16194

Install each power supply for each I/O chassis as described in the

installation data sheet shipped with each power supply.

ATTENTION: If you use separate ac power sources for the

power supply and all input devices connected to the I/O chassis,

and if power is lost at the input devices while the power supply

continues to operate, incorrect input data could be stored

in memory.

If you are: Go to chapter:

installing nonstandard I/O 8

connecting the I/O link 9

Connecting I/O Power Supplies

What to do Next