Keying your i/o chassis, Installing the output module – Rockwell Automation 1771-OMD AC(220V) Output Mod Installation Instructions User Manual

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AC (220V) Output Module Cat. No. 1771-OMD Series B

Publication 1771Ć5.26 - February 2000

Keying Your I/O Chassis

Use the plastic keying bands, shipped with each I/O chassis, to key
the I/O slots to accept only this type of module.

The module circuit board is slotted in two places on the rear edge.
The position of the keying bands on the backplane connector must
correspond to these slots to allow insertion of the module. You can
key any connector in an I/O chassis to receive this module except for
the left-most connector reserved for adapter or processor modules.
Place keying bands between the following numbers labeled on the
backplane connector:

Between 2 and 4

Between 6 and 8

You can change the position of these keys if system redesign and
rewiring makes insertion of a different module necessary.

Installing the Output Module

To install the ac output module in your 1771 I/O chassis, follow the
steps listed below.

!

ATTENTION: Remove power from the 1771 I/O
chassis backplane and wiring arm before removing or
installing an I/O module.

Failure to remove power from the backplane or wir-
ing arm could cause module damage, degradation of
performance, or injury.

Failure to remove power from the backplane could
cause injury or equipment damage due to possible
unexpected operation.

1. Turn off power to the I/O chassis.

2. Position the module so that the circuit board on the rear of the

module lines up with the top and bottom card guides in the
chassis.

3. Do not force the module into its backplane connector. Apply firm,

even pressure on the module to seat it properly.

4. Snap the chassis latch over the top of the module to secure

its position.

5. Connect the wiring arm to the module.

6. Make wiring connections to the field wiring arm as indicated in

“Connecting Wiring to the Output Module.”

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