1397-IN002 - Rockwell Automation
Contents
1. 15 If an I O Expansion Card is used the Pulse Encoder Interface Card is mounted piggy back on the I O Expansion Board and connected using hardware included with the Pulse Encoder Interface Kit 1397 5 13 June 1997 8 1397 Pulse Encoder Interface Card Wiring Specifications Terminal Blocks J5 and J6 are available for either regenerative or non regenerative drive connection Note Only regenerative drives allow motor reversing Regenerative drives require that quadrature pulse encoders be used and or motor can cause an overspeed condition Verify correct motor and pulse encoder polarity in the Start Up and Adjustment section of the 1397 User Manual Failure to observe this precaution could result in bodily injury ATTENTION The incorrect wiring of the pulse encoder Non Regenerative Drives Non Reversing Motor Applications High Shield to Chassis Ground Stud d TB J6 PM 71 15V High A 72 COM Single Channel 73 A Low Pulse Encoder 74 A Period No Motor Reversing O 75 B 76 B TB J5 1 Belden 9728 or 9730 2 Conductor Twisted Shielded Cable Refer to the Cable and Wire Recommendations in the 1397 Use Manual for ad2. Fredy lt 80 x Freqpg where Freqpe The Pulse Encoder s Maximum Rated Nameplate Frequency 1397 5 13 June 1997 4 1397 Pulse Encoder Interface Card Howto Selectthe PPR of Example a Pulse Encoder continued Using a 5 000 RPM motor with a requirement to run as low as 25 RPM Determine the Pulse Encoder s Minimum PPR Requirement PPR 1 x 60 120PPR 25 x 0 02 Determine the Maximum Allowable Pulse Encoder PPR PPR lt 73 000 x 60 lt 876PPR 5000 Pick a PPR for the Application In This Example 500 PPR lt 500 lt PPR Calculate the Pulse Encoder s Required Frequency at P 041 Max Motor Speed Frequ 5 000 x 500 41 67kHz 60 Confirm That the Pulse Encoder Frequency lt 80 of the Pulse Encoder s Maximum Rated Nameplate Frequency In This Example 120kHz 41 678k Hz lt 8 120 000 1397 5 13 June 1997 Installation 1397 Pulse Encoder Interface Card Discharge sensitive parts and assemblies Static control precautions are required when installing testing servicing or repairing this assembly Component damage may result if ESD control precautions are not followed If you are not familiar with static control procedures reference publication 8000 4 5 2 Guarding Against Electrostatic Damage orany other applicable ESD protection handbook ATTENTION This board contains ESD Electrostatic ATTENTION Electric Shock can cause injury or deat
3. O o Carrier Shield 1397 5 13 June 1997 Installation continued y 7 Enco ZA Pulse ES D 7 der Interface Card Connector J1 1397 Pulse Encoder Interface Card 7 If an I O Expansion Card is also required complete both Steps 4 and 5 14 Install the Pulse Encoder Interface Card in the drive carrier using the 2 pan head screws provided then plug the middle ribbon cable connector into J1 Ka ILE Pulse Encoder Interface Card SORIA S d S CES gt VO Expansion Card Connector J2 K1 pr Pulse Encoder L le Pan J Pan 4 m Head Head Screw NScrew Interface ES C N Connector J1 Pulse Encoder Interface
4. 500 RPM P 048 Set Encoder PPR This parameter is set to the pulse encoder s rated PPR PPR a the req value that was selected in Step 3 on page 3 Default Value 18 PPR P 049 Set Encoder Quad to Off Disabled for a Single Channel Encoder Set Encoder Quad to On Enabled for a Quadrature Dual Channel Encoder This parameter is set to match the type of pulse encoder either single channel or quadrature dual channel Default Value On 1397 5 13 June 1997 10 1397 Pulse Encoder Interface Card Notes 1397 5 13 June 1997 Notes 1397 Pulse Encoder Interface Card 11 1397 5 13 June 1997 AN Rockwell Automation Rockwell Automation helps its customers receive a superior return on their investment by bringing together leading brands in industrial automation creating a broad spectrum of easy to integrate Allen Bradley products These are supported by local technical resources available worldwide a global network of system solutions providers and the advanced technology resources of Rockwell A 2 ASA Worldwide representation Argentina Australia Austria Bahrain Belgium Bolivia Brazil Bulgaria Canada Chile China People s Republic of Colombia Costa Rica Croatia Cyprus Czech Republic Denmark Dominican Republic Ecuador Egypt El Salvador Finland France Germany Ghana Greece Guatemala Honduras Hong Kong Hungary Iceland India Indonesia Iran
5. Including Zero Speed Single Channel or Quadrature Dual Channel 5096 Nominal Required for All Regenerative Drives May Be Required to Satisfy the Pulse Encoder Interface Card s Voltage Limits Wiring Requirements Refer to the 1397 User Manual Publication 1397 5 0 Pulse Encoder Interface Card Requirements Power Supply Absolute Max Frequency Min Frequency Recommended Max Frequency Differential Input Requirements 15V DC 3 596 200mA Maximum 100kHz OkHz 73kHz Voltage 25V DC Maximum to Common 5V DC Minimum Differential 15V DC Maximum Differential Input Impedance 11kQ Line Termination 100Q in Series with 1 3900 pf Capacitor A 120 PPR pulse encoder can maintain a minimum speed of 25 RPM at the accuracy listed in the Specifications above The drive can operate below minimum motor speed but with degraded accuracy If a lower motor speed is required a pulse encoder with a higher PPR rating is required To select a pulse encoder Step 1 Determine the pulse encoder s minimum PPR requirement PPR 1 x 60 where a PPR N x 0 02 N The Pulse Encoder s Minimum Pulses per Revolution The Required Minimum Motor Speed in RPM Howto Selectthe PPR of a Pulse Encoder continued 1397 Pulse Encoder Interface Card 3 One pulse scan is required to meet the specified drive speed regulation listed in the 1397 User Manual For a drive s
6. Ireland Israel Italy e Jamaica Japan Jordan Korea Kuwait Lebanon Macau Malaysia Malta Mexico Morocco The Netherlands New Zealand Nigeria e Norway Oman Pakistan Panama Peru Philippines Poland Portugal Puerto Rico Qatar Romania Russia Saudi Arabia Singapore Slovakia Slovenia South Africa Republic of Spain e Sweden Switzerland Taiwan Thailand Trinidad Tunisia Turkey United Arab Emirates United Kingdom United States Uruguay Venezuela Rockwell Automation Headquarters 1201 South Second Street Milwaukee WI 53204 2496 USA Tel 1 414 382 2000 Fax 1 414 382 4444 Publication 1397 5 13 June 1997 P N 184653 Copyright 1997 Rockwell International Corporation Printed in USA
7. What This Option Provides Where This Option Is Used WhatThese Instructions Contain Installation Instructions IN Allen Bradley 1397 Pulse Encoder Interface Card Cat No 1397 PE Table of Contents What This Option Provides 1 Where This Option Is Used 1 What These Instructions Contain 1 Specifications 20s ne Y un We dene ERU 2 How to Select the PPR of a Pulse Encoder 2 Installation oi o ss 34 dite 5 Wiring Specifications 0 o o ooo o 8 Setup us nue REESE UE Pao WE 9 The Pulse Encoder Interface Card is a drive mounted board that provides terminals and an interface to differential encoder feedback signals for both regenerative and non regenerative 1397 drives This option may be used with all 1397 drives These instructions contain the necessary information to install amp configure a 1397 Pulse Encoder Interface Card For additional information on encoder signal requirements wire recommendations encoder parameters and related function blocks refer to the 1397 User Manual Publication 1397 5 0 1397 5 13 June 1997 2 1397 Pulse Encoder Interface Card Specifications Howto Selectthe PPR of a Pulse Encoder 1397 5 13 June 1997 Pulse Encoder Requirements Waveform Differential Output Duty Cycle Quadrature Line Drivers Square Wave Constant Amplitude Over Entire Speed Range
8. can time of 0 02 seconds the card requires a minimum of 50 pulses per second from a pulse encoder Using a minimum motor speed of 25 RPM PPR 1 x 60 120PPR 25 x 0 02 Step 2 Determine the maximum allowable pulse encoder PPR To leave adequate head room for possible motor over speeding at the motor s rated nameplate speed the card s head room frequency should not exceed 73kHz the card s maximum frequency PPR 73 000 x 60 Sec Min where 7 PPR The Maximum Allowable Pulse Encoder PPR N P041 Max Motor Speed N Step3 Pick a PPR for the application Pick aPPR for the application between the values calculated in Steps 1 amp 2 PPR lt PPRieq lt PPR where PPR reg The PPR Required for the Application Step 4 Calculate the pulse encoder s required frequency at P 041 Max Motor Speed Using the value selected in Step 3 calculate the pulse encoder frequency at P 041 Max Motor Speed FreQreg Na x PPRieg where A Fred reg The Pulse Encoder s Required Frequency PPR eq The PPR Required for the Application 60 Step 5 Confirm that the pulse encoder frequency lt 80 of the pulse encoder s maximum rated nameplate frequency To ensure that the pulse encoder has adequate head room for motor overspeeding confirm that the pulse encoder s required frequency is lt 80 of the pulse encoder s maximum rated nameplate frequency
9. ditional Wiring Specifications 2 Period 1 frequency Regenerative Drives Reversing and Non Regenerative Motor Applications High Shield Low A to Chassis Ground Stud lt gt TB J un A 2 T1 15V RX ri 7 Low Quadrature n 72 COM Dual Channel A 73 A High B dis id RX E PET Or Regenerative Drives 75 B 76 B nn TB J5 Low B 1 Belden 9728 or 9730 2 conductor twisted shielded cable Period B Refer to the Cable and Wire Recommendations in the 1397 User Manual for additional wiring specifications peiod 1 frequency 1397 5 13 June 1997 Setup 1397 Pulse Encoder Interface Card 9 To configure the board for the selected pulse encoder 4 parameters are set An additional parameter may be checked for board status P 048 can cause an overspeed condition Both parameters must be set by a qualified person who understands the significance of setting them Setthe value of these parameters accurately per your application requirements Failure to observe this precaution could result in bodily injury ATTENTION The incorrect setting of parameters P 039 or P 039 Set Feedback Type to Encoder This parameter is set to match the type of drive feedback signal used Default Value Arm Volt P 041 Set Max Motor Speed This parameter is set to match the motor s rated nameplate speed N the same value that was used in Step 2 on page 3 Default Value
10. h Remove all power before working on this product The drive is at line voltage when connected to incoming AC power Before proceeding with any installation or troubleshooting activity disconnect lockout and tag all incoming power to the drive Verify with a voltmeter than no voltage exists at terminals L1 L2 and L3 on the drive input power terminal block e Allen Bradley Captive Thumb Screw S Captive f Thumb Screw E 4 Ao eom 58 Captive Carrier Screw TM Y Bogna alla eam b sssssosss rssasossssessssssossos 11 Remove and lock out all incoming power to the drive Loosen the 2 captive retaining screws and remove the drive cover 12 Loosen the captive carrier retaining screw and swing the carrier door open 1397 5 13 June 1997 6 1397 Pulse Encoder Interface Card Installation continued 13 Toremove the carrier shield remove the 4 retaining screws and unplug the ground wire at the Power Supply Board Retaining Screw e Carrier Shield Retaining Screw
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