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Publication 1771ĆIN057B-EN-P - November 2002

DC (24V) Isolated Output

Module

(Catalog Number 1771–OQ16 Series C)

This document provides information on:

For information on: See page

Important User Information 1

Preinstallation Considerations 4

Calculate Power Requirements 4

Determine Module Placement in the Chassis 4

Key the Backplane Connector 5

Install the Module and Field Wiring Arm 6

Connect Wiring to the Output Module 7

Replacing the Fuse 11

For this reference information See page

Intepreting the Status Indicators 10

Hazardous Location Approval 12

Specifications 13

Because of the variety of uses for the products described in this

publication, those responsible for the application and use of these

products must satisfy themselves that all necessary steps have been

taken to assure that each application and use meets all performance

and safety requirements, including any applicable laws, regulations,

codes and standards. In no event will Rockwell Automation be

responsible or liable for indirect or consequential damage resulting

from the use or application of these products.

Any illustrations, charts, sample programs, and layout examples

shown in this publication are intended solely for purposes of

example. Since there are many variables and requirements associated

with any particular installation, Rockwell Automation does not

assume responsibility or liability (to include intellectual property

liability) for actual use based upon the examples shown in this

publication.

To the Installer

Important User Information

Installation Instructions

Summary of content (16 pages)

PAGE 1
Installation Instructions DC (24V) Isolated Output Module (Catalog Number 1771–OQ16 Series C) To the Installer This document provides information on: For information on: Important User Information Preinstallation Considerations 4 Calculate Power Requirements Determine Module Placement in the Chassis 4 4 Key the Backplane Connector 5 Install the Module and Field Wiring Arm 6 Connect Wiring to the Output Module 7 Replacing the Fuse 11 For this reference information Intepreting the Status Indica
PAGE 2
DC (24V) Isolated Output Module Allen–Bradley publication SGI–1.1, Safety Guidelines for Application, Installation, and Maintenance of Solid–State Control (available from your local Rockwell Automation office), describes some important differences between solid–state equipment and electromechanical devices that should be taken into consideration when applying products such as those described in this publication.
PAGE 3
DC (24V) Isolated Output Module ATTENTION ! 3 Environment and Enclosure This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II applications (as defined in IEC publication 60664–1), at altitudes up to 2000 meters without derating. This equipment is considered Group 1, Class A industrial equipment according to IEC/CISPR Publication 11.
PAGE 4
DC (24V) Isolated Output Module ATTENTION ! Preventing Electrostatic Discharge This equipment is sensitive to electrostatic discharge, which can cause internal damage and affect normal operation. Follow these guidelines when you handle this equipment: • Touch a grounded object to discharge potential • • • • • PreĆinstallation Considerations static. Wear an approved grounding wriststrap. Do not touch connectors or pins on component boards. Do not touch circuit components inside the equipment.
PAGE 5
DC (24V) Isolated Output Module Key the Backplane Connector ATTENTION ! Place your module in any slot in the chassis except the leftmost slot, which is reserved for processors or adapters. ATTENTION ! 5 A module inserted into a wrong slot could be damaged by improper voltages connected through the wiring arm. Use keying bands to prevent damage to the module. Position the keying bands in the backplane connectors to correspond to the key slots on the module.
PAGE 6
DC (24V) Isolated Output Module Install the Module and Field Wiring Arm WARNING ! ATTENTION ! When you insert or remove the module while backplane power is on, or you connect or disconnect the wiring arm with field power applied, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure power is removed or the area is nonhazardous before proceeding.
PAGE 7
DC (24V) Isolated Output Module Connect Wiring to the Output Module 7 Make wiring connections to terminals on the field wiring arm (cat. no. 1771-WN) shipped with the module. Attach the wiring arm to the pivot bar on the bottom of the I/O chassis. The wiring arm pivots upward and connects with the module so you can install or remove the module without disconnecting the wires. 1. Make certain all power is removed from the module before making wiring connections. 2.
PAGE 8
DC (24V) Isolated Output Module Connection Diagram for the 1771–OQ16 Series C Isolated Output Module Alternate Load Location Load +dc - 0 +dc - 1 2 Output 0 4 Output 1 +dc - 2 6 Output 2 +dc - 3 Not Used 8 +dc - 4 12 +dc - 5 14 +dc - 6 16 +dc - 7 Not used 18 +dc - 10 22 +dc -11 24 +dc - 12 +dc - 13 26 Output 3 Not used Output 4 Output 5 10 Output 6 Output 7 20 Output 11 Output 12 Output 13 28 Not used 30 +dc - 14 32 +dc - 15 34 +dc - 16 36 +dc - 17 38 Not used
PAGE 9
DC (24V) Isolated Output Module 9 You can use an output of the 1771-OQ16 module to drive an input of a dc input module (1771-IQ16) to indicate status, such as the turning on of a motor starter (see below). Driving an Input with an Output DC (24V) Isolated Input Module (Cat. No. 1771ĆIQ16) DC (24V) Isolated Output Module (Cat. No.
PAGE 10
DC (24V) Isolated Output Module Interpreting the Status Indicators The module has 18 indicators, consisting of 16 output status indicators, an active indicator and a fuse blown indicator. The 16 status indicators will light when an ”on” signal has been communicated between the module and the system backplane.
PAGE 11
DC (24V) Isolated Output Module Replacing a Fuse 11 Each module output is individually fused. You can easily access the module fuses through the access hole provided in the component side cover. Follow the procedure 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 could cause injury or equipment damage due to possible unexpected operation.
PAGE 12
DC (24V) Isolated Output Module The following information applies when operating this equipment in hazardous locations: Products marked CL I, DIV 2, GP A, B, C, D" are suitable for use in Class I Division 2 Groups A, B, C, and D Hazardous Locations and nonhazardous locations only. Each product is supplied with markings on the rating nameplate indicating the hazardous location temperature code.
PAGE 13
DC (24V) Isolated Output Module Specifications 13 Outputs per Module 16 Module Location 1771ĆA1B thru Ć A1B or later I/O Chassis Voltage Rating 10 to 32V dc Maximum Output Current 2.0A per output; 32.0A maximum per module at 0-45oC; Derate linearly to 1.5A per output, 24A maximum per module at 60oC See derating curve. Minimum Output Current 5mA OnĆstate Voltage Drop (maximum) 0.34A per output at 2A OffĆstate Leakage Current (maximum) 0.
PAGE 14
DC (24V) Isolated Output Module Conducted RF Immunity IEC 61000-4-6 10V rms with 1kHz sine wave 80% AM from 150kHz to 30MHz Emissions CISPR 11 Group 1, Class A (with appropriate enclosure) Enclosure Type Rating None (open-style) Keying Between 22 and 24 Between 32 and 34 Fuse 3A 2AG Fast Acting fuses (1 per output) Littelfuse P/N 225003 (Optional fuse kit Cat No. 1771ĆFF contains 5 fuses) Field Wiring Arm Catalog Number 1771ĆWN Wiring Arm Screw Torque 7-9 pound-inches (0.8-1.
PAGE 15
DC (24V) Isolated Output Module 15 Derating Curve for the 1771-OQ16/C 2.5 Output Current - Amperes 2 1.5 1 0.
PAGE 16
Publication 1771ĆIN057B-EN-P - November 2002 Supersedes Publication 1771-5.57 - November 1999 PN957707-90 Copyright 2002 Rockwell Automation, Inc.