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1 Publication 1771-IN046B-EN-P - December 2003

Installation Instructions

Fast Analog Input Module

Cat. No. 1771-IFF Series A

Contents

Use this document as a guide when installing the 1771-IFF series A fast analog

input module.

Important User Information

Solid state equipment has operational characteristics differing from those of

electromechanical equipment. Safety Guidelines for the Application, Installation and

Maintenance of Solid State Controls (Publication SGI-1.1 available from your local

Rockwell Automation sales office or online at http://www.ab.com/manuals/gi)

describes some important differences between solid state equipment and hard-wired

electromechanical devices. Because of this difference, and also because of the wide

variety of uses for solid state equipment, all persons responsible for applying this

equipment must satisfy themselves that each intended application of this equipment is

acceptable.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or

consequential damages resulting from the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes.

Because of the many variables and requirements associated with any particular

installation, Rockwell Automation, Inc. cannot assume responsibility or liability for

actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of

information, circuits, equipment, or software described in this manual.

To See page

Important User Information 1

North American Hazardous Location Approval 4

Understand Product Compatibilty 5

Calculate Power Requirements 6

Determine Module Placement in the I/O Chassis 6

Set the Simulation Jumper 7

Set the Configuration Jumpers 7

Key the Backplane Connector 8

Install the Module and Field Wiring Arm 8

Connect Wiring to the Field Wiring Arm 9

Grounding 13

Configure the Module 14

Interpret Status Indicators 16

Troubleshooting 17

Specifications 18

Summary of content (20 pages)

PAGE 1
Installation Instructions Fast Analog Input Module Cat. No. 1771-IFF Series A Contents Important User Information Use this document as a guide when installing the 1771-IFF series A fast analog input module.
PAGE 2
Fast Analog Input Module Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc. is prohibited. Throughout this manual we use notes to make you aware of safety considerations. WARNING IMPORTANT ATTENTION Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss.
PAGE 3
Fast Analog Input 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
Fast Analog Input Module North American Hazardous Location Approval This 1771-IFF series A module is hazardous location approved. 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, D, Hazardous Locations and nonhazardous locations only. Each product is supplied with markings on the rating nameplate indicating the hazardous location temperature code.
PAGE 5
Fast Analog Input Module 5 Preventing Electrostatic Discharge ATTENTION 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 static. • Wear an approved grounding wriststrap. • Do not touch connectors or pins on component boards. • Do not touch circuit components inside the equipment. • If available, use a static-safe workstation.
PAGE 6
Fast Analog Input Module Calculate Power Requirements The module receives its power through the 1771 I/O power supply and requires 500mA from the backplane. Add this current to the requirements of all other modules in the I/O chassis to prevent overloading the chassis backplane and/or backplane power supply. ATTENTION Determine Module Placement in the I/O Chassis Do not insert or remove modules from the I/O chassis while system power is ON.
PAGE 7
Fast Analog Input Module Set the Simulation Jumper 7 The module is shipped with the simulation jumper set in position POS G. This setting allows input data to go above and below the range points. If the simulation jumper is set to the POS E position, input data is clamped (does not exceed) at range end points. Simulation Set the Simulation Jumper Top edge of circuit board Jumper POS G 1. Locate the simulation jumper at the top edge of the module circuit board.
PAGE 8
Fast Analog Input 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. Observe the following precautions when inserting or removing keys: • insert or remove keys with your fingers • make sure that key placement is correct Incorrect keying or the use of a tool can result in damage to the backplane connector and possible system faults.
PAGE 9
Fast Analog Input Module 1 1771-A1B, -A2B, -A3B, -A3B1, -A4B I/O chassis 9 1771-A1B, -A2B, -A3B1, -A4B Series B I/O chassis locking tab locking bar locking bar pin card guides card guides IFF module Snap the chassis latch over the top of the module to secure it. IFF module Swing the chassis locking bar down into place to secure the modules. Make sure the locking pins engage. 19809 2 wiring arm Attach the wiring arm (1771-WG) to the horizontal bar at the bottom of the I/O chassis.
PAGE 10
Fast Analog Input Module WARNING If you connect or disconnect the wiring with field-side power applied, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that power is removed or the area is nonhazardous before proceeding. Input connections for the 1771-IFF with: • single-ended inputs are shown on page 11. • differential inputs are shown on page 12.
PAGE 11
Fast Analog Input Module 11 single-ended wiring Connection Diagram for 16 Single-ended Inputs and Two-Wire Transmitters Note: Refer to transmitter manufacturers specifications for power supply connections. Note: + 2-Wire Transmitter – All module commons are electrically tied together inside the module. Power Supply – Jumper all unused channels to module common to reduce noise. – 2-Wire Transmitter – Tie power supply grounds together to minimize ground loops.
PAGE 12
Fast Analog Input Module differential wiring Connection Diagram for 8 Differential Inputs and Two-Wire Transmitters Note: Refer to transmitter manufacturers specifications for power supply connections. Note: – Unused channels must have their + and - inputs jumpered together and tied to module common to reduce noise. – Tie power supply grounds together to minimize ground loops.
PAGE 13
Fast Analog Input Module When using shielded cable wire, ground the foil shield and drain wire only at one end of the cable. We recommend that you wrap the foil shield and drain together, and connect them to a chassis mounting bolt, grounding stud or chassis single-point grounding point. Use heat-shrink tubing to seal the exit point of the wires. At the opposite end of the cable, tape exposed shield and drain wire with electrical tape to insulate it from electrical contact.
PAGE 14
Fast Analog Input Module You must configure the module to conform to the analog device and specific application that you have chosen. Use the configuration information below to configure your module to your specifications. Configure the Module Dec.
PAGE 15
Fast Analog Input Module 15 Use the following table to read data from your input module. Dec. Bits 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 Octal Bits 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 HF EE CS RTS IS OR PU Word 1 Hardware fault - (HF) When this bit is set, the dc/dc converter fuse has blown. Digital logic will continue to operate. EEPROM status bit - (EE) This bit is set if an error occurs saving calibration data to nonvolatile memory .
PAGE 16
Fast Analog Input Module When Data Format bits 9 and 10 in block transfer write word 3 are set for “2’s complement - data first,” the block transfer read will transmit channel data first in the transfer. For single-ended configuration, words 1 through 16 will have channel data. For differential configuration, words 1 through 8 will contain channel data.
PAGE 17
Fast Analog Input Module Troubleshooting 17 Possible module fault causes and corrective action is described in the following table. Indicators Probable Cause Recommended Action RUN (green on) Normal operation None Awaiting configuration block transfer write Send configuration BTW Return module for repair FLT (red on) Hardware failure in module RUN (green off) No power Turn off power. Remove and reinsert module into chassis. Return power.
PAGE 18
Fast Analog Input Module Specifications Description Value Inputs per module 16 single-ended; 8 differential low level Module Location 1771 I/O chassis - 1 slot Input Voltage Ranges (nominal) +1 to +5V dc 0 to +5V dc -5 to +5V dc -10 to +10V dc 0 to +10V dc Input Current Ranges (nominal) +4 to +20mA 0 to 20mA -20 to +20mA Resolution 12-bit binary 12 bits plus sign on bipolar ranges Accuracy 1.
PAGE 19
Fast Analog Input Module Description 19 Value Shock Operating Non-operating Vibration IEC 60068-2-27 (Test Ea, Unpackaged Shock) 30g peak acceleration 50g peak acceleration IEC 60068-2-6, (Test Fc, Operating) 2g @ 10-500Hz ESD Immunity IEC 61000-4-2: 4kV contact discharges Radiated RF Immunity IEC 61000-4-3: 10V/m with 1kHz sine-wave 80%AM from 30MHz to 1000MHz EFT/B Immunity IEC 61000-4-4: ±1kV at 5kHz on signal ports Surge Transient Immunity IEC 61000-4-5: ±2kV line-earth(CM) on shielded port
PAGE 20
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