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Summary of Contents for Helm HM1525
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Page 1: Instruction Manual
Helm Instrument Company, Inc. 361 West Dussel Drive Maumee, Ohio 43537 USA 419/ 893-4356 Fax: 419/ 893-1371 www.helminstrument.com 1769 Weigh Scale Module Model HM1525 Instruction Manual FEBRUARY 2004... - Page 2 Solid state equipment has operational characteristics differing from those Important User of electromechanical equipment. “Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls” (Allen-Bradley Information Publication SGI-1.1) 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...
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Page 3: Table Of Contents
Table of Contents Weigh Scale Load Module Table of User Manual Contents Strain Gage Module Preface ..............P-1 Who Should Use this Manual........P-1 Purpose of this Manual .........P-1 Contents of this Manual ........P-2 Related Documentation ........P-3 Terms and Abbreviations ........P-4 Common Techniques Used in this Manual ...P-5 Product Support ............P-5 Your Questions or Comments on this Manual ..P-5... - Page 4 Table of Contents Weigh Scale Load Module User Manual Initial Setup Procedures Chapter 4 ..............4-1 Initial Setup Procedures........4-1 Step 1. Balance Sensor Input ....... 4-1 Step 2. Set Calibration Numbers ......4-2 Chapter 5 ..............5-1 System HT-400 Sensor Ohm Reading ......5-1 Trouble- Block Diagrams.............
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Page 5: Preface
Preface Preface Read this preface to familiarize yourself with the rest of this manual. This preface covers the following topics: • who should use this manual • the purpose of this manual • terms and abbreviations • conventions used in this manual •... -
Page 6: Contents Of This Manual
Preface Contents of this Manual Chapter Title Content Describes the purpose, background, Preface and scope of this manual. Also specifies the audience for whom this manual is intended and defines key terms and abbreviations used throughout this book. Provides a hardware and system Overview overview. -
Page 7: Related Documentation
Preface Related Documentation The following documents contain information that may be helpful to you as you use Allen-Bradley SLC products. To obtain a copy of any of the Allen-Bradley documents listed, contact your local Allen-Bradley office or distributor. Read this Document Document Number An overview for the MicroLogix... -
Page 8: Terms And Abbreviations
Preface Terms and Abbrevia- tions The following terms and abbreviations are used throughout this manual. For definitions of terms not listed here refer to Allen-Bradley’s Industrial Automation Glossary, Publication ICCG-7.1. Calibration - Procedure, performed by trained personnel, where machine or press is dynamically loaded to impact on load cells. -
Page 9: Common Techniques Used In This Manual
Preface Common The following conventions are used throughout this manual: Techniques Used in this • Bulleted lists such as this one provide information, not procedural steps. Manual • Numbered lists provide sequential steps or hierarchical information. Product Contact your Helm representative or call Helm direct at 419-893-4356: Support •... -
Page 10: Overview
Chapter Overview You have just purchased the most advanced load monitoring solution available. HELM INSTRUMENT COMPANY, INC. manufactures a complete line of load monitoring control solutions for use on metal stamping, forging, compaction and assembly presses; cold forming, cold heating, injection molding and die cast machines. Standard or custom transducers and load cells are available for in-die monitoring of transfer or progressive tooling. -
Page 11: Hardware Overview
Chapter Hardware The Weigh Scale module can be attached to the controller or to an adjacent I/O module before or after din rail mounting. It is a Class 1 Overview module (uses eight input words and eight output words). It interfaces to strain gage based transducers (350ohm or 700ohm). -
Page 12: Chapter 2
Chapter Getting This chapter can help you to get started using the Helm Weigh Scale Started module. The procedures included here assume that you have a basic understanding of PLC products. You should understand electronic process control and be able to interpret the ladder logic instructions required to generate the electronic signals that control your application. -
Page 13: System Operation
Chapter System The Weigh Scale module communicates to the processor through the parallel backplane interface and receives +5Vdc and +24Vdc power from the power Operation supply through the backplane. No external power supply is required. MicroLogix and CompactLogix platforms can support up to 8 I/O modules. You may install up to 3 Weigh Scale modules using the base power supply. -
Page 14: Chapter 3
Chapter Channel This chapter explains how the Weigh Scale module and the processor communicate Configuration through the module's input and output image. Data and For CompactLogix / RSLogix™ 5000 setup, please refer to Appendix A Status With RS Logix500 software, verify the module ID code. Expansion General Configuration Weigh Vendor ID = 3... - Page 15 Output Chapter Image (cont.) Zero Stabilize Bit (O:e/3) Enables module feature to display “0” when Weigh scale is empty. 0 = Disable 1 = Enable Least Significant Bit (LSD) Flicker Bit (O:e/4) LSD of weigh value. Does not change when load is applied or if load is constant.
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Page 16: Input Image
Chapter Data Table The 8-word module input image (input from the module to the CPU) represents data words and status words. Input words (data words) hold the input data that represents Input Image the values of the sensor inputs. Input words (status bits) contain the various status conditions and reflect the configuration settings you have entered into the output configuration words. - Page 17 Chapter Input Image (cont.) Channel 1 Weigh Value (I:e.1) Weigh value for Channel 1 Channel 2 Weigh Value (I:e.2) Weigh value for Channel 2. Channel 1 A/D Trim Value (I:e.3) Value stored in module for Channel 1. Value should match value on sticker. Channel 2 A/D Trim Value (I:e.5) Value stored in module for Channel 2.
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Page 18: Integer File
Chapter Integer File Using RS Logix500 software, reserve an integer file for Weigh Module monitoring. For illustration purposes in this manual, we have reserved Integer file N10:0 - N10:16. Data Description Address Channel 1 Sign Bit N10:0/2 Channel 2 Sign Bit N10:0/3 Integer Faults... -
Page 19: Step 1. Balance Sensor Input
Setup Chapter Procedure A complete listing of a sample ladder logic program is included at the back of this manual. Examples shown here are for reference. All values are 0 (default) on initial start-up. This means that all alarms are disabled. - Page 20 Chapter System Trouble- shooting Guide HT-400 Sensor Ohm Readings Green-Black 350 ohms Red-White 350 ohms All other color combinations 266 ohms All colors to Ground open Shield to Ground open Electrical Specifications: Type of input Strain Gage (350 ohm, 700 ohm) Input Impedance Display Resolution Up to .0025% of full scale...
- Page 24 APPENDIX A – Module Properties RSLogix™5000...
- Page 25 WEIGH_MODULE - Ladder Diagram Page 1 WEIGH_1525:MainTask:MainProgram 2/27/2008 3:01:17 PM Total number of rungs in routine: 7 C:\Jobs\Helm\Module_Logic\COMPACTLOGIX_HM1525.ACD MOVE SAMPLE SETPOINT FROM MMI SCREEN TO MODULE MOVE SAMPLE SETPOINT FROM MMI SCREEN TO MODULE WEIGH MODULE A/D SAMPLES SETTING Move Source HM1525_CONTROL[1] Dest...
- Page 26 WEIGH_MODULE - Ladder Diagram Page 2 WEIGH_1525:MainTask:MainProgram 2/27/2008 3:01:17 PM Total number of rungs in routine: 7 C:\Jobs\Helm\Module_Logic\COMPACTLOGIX_HM1525.ACD TOGGLE VIBRATION FILTER, ZERO STABILIZE, FLICKER OFF/ON CONTROL FROM MMI SCREEN TO MODULE TOGGLE VIBRATION FILTER, ZERO STABILIZE, FLICKER OFF/ON CONTROL FROM MMI SCREEN TO MODULE WEIGH MODULE VIBRATION FILTER VIBRATION FILTER...
- Page 27 WEIGH_MODULE - Ladder Diagram Page 3 WEIGH_1525:MainTask:MainProgram 2/27/2008 3:01:17 PM Total number of rungs in routine: 7 C:\Jobs\Helm\Module_Logic\COMPACTLOGIX_HM1525.ACD CHANNELS 1 AND 2 WEIGH VALUES FROM MODULE TO MMI SCREEN CHANNELS 1 AND 2 WEIGH VALUES FROM MODULE TO MMI SCREEN MMI WEIGH MODULE CHANNEL 1 WEIGH VALUE...
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