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Isolated AC/DC (22O/24O V) Input Module

16 Discrete Inputs

Cat. No. 1771sc-IMI16

Installation Data

To the Installer This document provides information on:

• important pre-installation considerations

• power supply requirements

• installing the module

• using the indicators for troubleshooting

• module specifications

Throughout this document, we use the following symbol to make you aware

of safety considerations:

This symbol identifies information about practices or circumstances that can lead

to equipment damage, personal injury, or death. This symbol helps you identify

a hazard, avoid the hazard, and recognize the consequences.

Please read all the information in this document before installing the product.

This document assumes a full working knowledge of the relevant PLC.

Publication 0300125-02 Rev. B

Summary of content (8 pages)

PAGE 1
Publication 0300125-02 Rev. B Isolated AC/DC (22O/24O V) Input Module 16 Discrete Inputs Cat. No.
PAGE 2
Installation Data AC/DC (220/240 V) Input Module Cat. No. 1771sc-IMI16 Important Pre-Installation Considerations This module must be used with a 1771 Series B (or later) I/O chassis. This module contains input filtering to limit the effects of voltage transients caused by contact bounce and/or radiated electrical noise. This filtering cannot be turned off.
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Installation Data AC/DC (220/240 V) Input Module Cat. No. 1771sc-IMI16 Power Supply Requirements Your module receives its power from the chassis power supply through the 1771 I/0 chassis backplane. The module requires 100 mA, maximum, from the output of this supply. Add this to the requirements of all other modules in the I/O chassis to prevent overloading of the chassis backplane and/or backplane power supply.
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Installation Data AC/DC (220/240 V) Input Module Cat. No. 1771sc-IMI16 1. Turn off power to the I/O chassis. 2. Place the module in the plastic tracks on the top and bottom of the slot that guides the module into position. 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, as detailed below.
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Installation Data AC/DC (220/240 V) Input Module Cat. No. 1771sc-IMI16 Figure 2 Connection Diagram L1 220/240 V AC/DC Supply L2 L2 AC Low or DC Common ! WARNING EXPLOSION HAZARD Never connect or disconnect equipment while circuit is live unless area is known to be non-hazardous. Failure to observe these precautions can cause equipment damager, personal injury or death.
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Installation Data AC/DC (220/240 V) Input Module Cat. No. 1771sc-IMI16 Important: You can use an AC (220/240 V) Output Module (cat. no. 1771scOMI16) to drive terminals on the 1771sc-IMI16, as shown in Figure 3. Use the same AC power source to power both modules to ensure proper phasing and prevent module damage. (Note: the 1771sc-OMI16 is an isolated output module.) Figure 3 Driving an Input with an Output AC (220/240 V) Isolated Output Module (Cat. No.
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Installation Data AC/DC (220/240 V) Input Module Cat. No. 1771sc-IMI16 Using the Indicators For Troubleshooting The front panel of your module contains one green module active indicator and 16 red channel active indicators (Figure 4). After successfully communicating with the PLC, the module will illuminate the green module active indicator. The 16 red status indicators illuminate when the associated input channel is active (on).
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Installation Data AC/DC (220/240 V) Input Module Cat. No. 1771sc-IMI16 Specifications (Cat. No. 1771sc-IMI16) Inputs per Module 16 (isolated) Module Location 1771 I/O chassis Nominal Input Voltage Nominal Input Current @ 220 VAC, 50 Hz @ 220 VAC, 60 Hz @ 250 VDC Input Signal Delay On-state Current (minimum) @ 159 VAC, 50 Hz @ 159 VAC, 60 Hz @ 184 VDC On-state Voltage (range) See page 1 of this publication. 6.30 mA 8.00 mA 1.30 mA 159 to 264 VAC 184 to 276 VDC 2.8 mA 0.