Installation Instructions User Manual

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Publication 1771ĆIN043B-EN-P - July 2002

Configurable

Flowmeter Module

(Catalog Number 1771-CFM)

Use this document as a guide when installing a Configurable

Flowmeter module.

To See page

Important User Information 1

Calculate power requirements 4

Set the module operation jumpers 4

Set the input channel jumpers 5

Determine CFM module placement 6

Key the backplane connector 6

Install the module 7

Make connections to the field wiring arm 8

Ground the module 11

Configure the module 12

Interpret module status and input data 15

For this reference information See page

Diagnostics 16

Status indicators 16

Specifications 18

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.

This icon is used when

additional information

is available in the

Configurable Flowmeter

Module User Manual,

publication 1771Ć6.5.99.

Important User Information

Installation Instructions

Contents

Summary of content (20 pages)

PAGE 1
Installation Instructions Configurable Flowmeter Module (Catalog Number 1771-CFM) Contents Use this document as a guide when installing a Configurable Flowmeter module. To This icon is used when additional information is available in the Configurable Flowmeter Module User Manual, publication 1771Ć6.5.99.
PAGE 2
Configurable Flowmeter 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
Configurable Flowmeter 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
Configurable Flowmeter 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 • • • • • Calculate Power Requirements 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
Configurable Flowmeter Module Set the Input Channel Jumpers These jumpers Are used to set flowmeter jumpers (F0ĆF3) flowmeter for lowĆpass filter (70Hz) or highĆspeed operation gate jumpers (G0ĆG3) gates for +5Ć12V or +12Ć30V operation The CFM module is configured for high-speed operation. If any input channel will be accepting input from a mechanical switch, you need to set the flowmeter jumper for that input channel to filter operation. The filter provides debouncing for the mechanical switch.
PAGE 6
Configurable Flowmeter Module Determine CFM Module Placement Use of data table Input Image Bits Output Image Bits Read Block Words Write Block Words Place your module in any slot of the I/O chassis except for the extreme left slot. This slot is reserved for processors or adapter modules. 8 8 41 max 60 max 2Ćslot addressing Place the CFM module in any Place the CFM module in any module group with any 8Ćbit or module group with any 8Ćbit, 8Ćbit bblock oc transfer a s e module.
PAGE 7
Configurable Flowmeter Module Install the Module WARNING ! ATTENTION ! 1 Place the module in the card guides on the top and bottom of the chassis that guide the CFM module into position. Important: Apply firm even pressure on the module to seat it into its backplane connector. 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.
PAGE 8
Configurable Flowmeter Module Make Connections to the Field Wiring Arm Even Numbered Terminals 2Ć40 Connect your I/O devices to the 40-terminal field wiring arm (cat. no. 1771-WN) shipped with the CFM module. Remove power to all I/O devices before you connect them to the wiring arm.
PAGE 9
Configurable Flowmeter Module Wiring Examples Standard Magnetic Pickup 50mV threshold (F0) Standard Magnetic Pickup 500mV threshold (F0) 1771ĆWN 1 3 5 7 9 F0 (TTL) Ċ not 1 used 1 F0 RET 2 4 6 8 10 12 not used Ċ F0 (500mV) F0 Input Input + Device - Important: To use a channel for 500mV sensor, jumper the 500mV pin to the appropriate RET. For Channel 0, jumper pin 10 to pin 11.
PAGE 10
Configurable Flowmeter Module Wiring Examples (continued) Standard Output (O0) External + Power Supply #1 5Ć30V dc @ 2A - 28 30 32 34 36 38 40 À Output 0 + LOAD 0 - À + - Customer V dc #1 RET (Outputs 0 & 1 RET) 27 29 31 33 35 37 39 Customer V dc #1 (5 to 30V) Output 1 LOAD 1 À 1771ĆWN À For new installations, terminate the shields at the chassis. While not recommended, existing installations can continue to terminate the shields at the return (RET) terminal.
PAGE 11
Configurable Flowmeter Module Ground the Module Use the following diagrams to ground your I/O chassis and CFM module. 1 Chassis Ground When you connect grounding conductors to the I/O chassis grounding stud, place a star washer under the first lug, then place a nut with captive lock washer on top of each ground lug. Torque the nut with captive washer to 18(+3) pound-inches. Remove a length of cable jacket from the Belden 8761 cable.
PAGE 12
Configurable Flowmeter Module Configure the Module To configure the CFM module, you enter BTW and BTR instructions into your ladder logic, then you enter data into the BTW instruction. This data should conform to the input device and specific application that you have chosen. You can configure the module using I/O configuration software or by editing bits in the BTW instruction.
PAGE 13
Configurable Flowmeter Module Modes of Operation You configure the CFM module for these modes of operation: Prover Totalizer • accurately measure counts using a flowmeter or positive displacement meter • trigger outputs directly from the CFM module Ċ trigger on total, frequency, acceleration • monitor flow total, rate, and rate of change independent of your PLC processor scan times • store counts based on external input • scale the frequency and count to engineering units • interface to a prover Ind
PAGE 14
Configurable Flowmeter Module BTW Word Assignments Word(s)À BitÁ 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 Block ID & Resets 1 Header 2 Output 1 Trigger 3 Output 3 Trigger Prover Run Initialize Overflow Reset Total Reset Output 0 Trigger Tie Output 0 to Channel Output 2 Trigger Tie Output 2 to Channel Channel 1 Channel 0 Output 1 and Output 0 Trigger & Select Tie Output 1 to Channel Output 3 and Output 2 Trigger & Select Tie Output 3 to Channel Input Channel Oper
PAGE 15
Configurable Flowmeter Module Interpret Module Status and Input Data Your PLC processor gets data from the CFM module using BTR instructions in your ladder logic program. The CFM module transfers up to 41 words to the PLC processor’s data table file. The words contain module status and input data from each channel. You should program a block transfer read length of zero (0). When a BTR of 0 is programmed, the CFM module will determine the correct number of words (41) to return.
PAGE 16
Configurable Flowmeter Module Diagnostics and Troubleshooting The CFM module returns diagnostics to the PLC processor in words one and two of the BTR file. These diagnostics give you the word in the BTW configuration block that has caused an error to occur. In the event that there are multiple incorrect BTW words, the CFM module only returns the first incorrect word.
PAGE 17
Configurable Flowmeter Module 17 Hazardous Locations 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 18
Configurable Flowmeter Module Specifications Number of Input Channels 4 Module Location 1771ĆA1B, ĆA2B, A3B, ĆA3B1, ĆA4B (series A and B) I/O chassis 1771ĆAM1, ĆAM2 I/O chassis with integral power supply, adapter Maximum Count Value 0-9,999,999 (programmable) BTW Processing Time (worst case) 5.5ms Ċ on a configuration change Module Scan Time 1.
PAGE 19
Configurable Flowmeter Module 19 Environmental Conditions Operating Temperature IEC 60068-2-1 (Test Ad, Operating Cold) IEC 60068-2-2 (Test Bd, Operating Dry Heat) IEC 60068-2-14 (Test Nb, Operating Thermal Shock) 32 to 131°F (0o to 60oC) Storage Temperature IEC 60068-2-1 (Test Ab, Unpackaged, Nonoperating Cold) IEC 60068-2-2 (Test Bb, Unpackaged, Nonoperating Dry Heat) IEC 60068-2-14 (Test Na, Unpackaged, Nonoperating Thermal Shock) -40 to 185°F (-40 to 85oC) Relative Humidity IEC 60068-2-30 (Test D
PAGE 20
Configurable Flowmeter Module European Zone 2 Certification This equipment is intended for use in potentially explosive atmospheres as defined by European Union Directive 94/9/CE. The LCIE (Laboratoire Central des Industries Electriques) certifies that this equipment has been found to comply with the Essential Health and Safety Requirements relating to the design and construction of Category 3 equipment intended for use in potentially explosive atmospheres, given in Annex II to this Directive.