HM1756 ControlLogix Strain Gage Module
Contents
1. Oo INJHNALSNI 2922 NIYI Nlv4LS 034 OYI N3349 OS qyOLINGNOOD ANY OL 013 OL 073 5 OlHO JINN 703 1N3HDHLSNI WHH NOILVHLS YII 20 HM 1756 SGI Operating Instructions SYSTEM CONNECTION APPENDIX C VS0MY6013 OO LNAWNYLSNI WT3H 40 LNASNOO SS3HHdX3 IN T3H SNOLLO3NNOO IN3 1SAS Wid 195 9941 WH zn YSN OIHO 33AIQ VIN OO LNAWNYLSNI AHL LNOHLIM GASOT9SIC HO 38 ON TIVHS AOAYAHL YALLVW LOarans JHL NOLLVINHOJNI Ory Ad 40 11 20 IVILN3GIJNOO SV 1 38 OL SI LI OO LNSWNYLSNI WISH 40 ALH3dOHd SAISNIOXG SI THW AAA Ad GANDIS30 40 20 21 yva gt x indul 1521 6 Sma TUS gz indino 2 pos jndin siindino 881 1 d SSH LNdNI ONIWIL LAd LNO WHWT 12149253 p 8 SUD or ewes sindu eDeo 2 pejeroosse pue sjueuoduuoo jesseoeu sainpoy DS 9S 1 Jepoui 5 SALON2. AHELM Helm Instrument Company Inc 361 West Dussel Drive Maumee Ohio 43537 USA 419 893 4356 Fax 419 893 1371 www helminstrument com HM 1756 SGI PLM Strain Gage Inout Module User Manual Force Measurement and Control Solutions HM 1756 SGI Operating Instructions IMPORTANT USER INFORMAT ON iib ette 1 2 WHO SHOULD USES iene eet tr t ud lh Gia ae as 2 PURPOSE OFTHIS MANUA boss 2 RELATED DOCUMENTATION ena Aa bh eii evedenydivontaasceecesoaeaadaaastenadaciee 3 TERMS AND ABBREVIATIONS 22 1er tatnen nennt ette eara nne ek narrar nave ub Le a pena ioa nn Run a TRE uaa acu 3 TECHNIQUES USED IN THIS MANUAL nennen nnne nnne 5 PRODUCT sU oq 5 OVERVIEW cV TAT 6 HARDWARE OVERVIEW m E 7 HM 1756SIG PLM SPECIFICATIONS nnne nnne nnne 7 GETTINGISTARTED e Re 8 REQUIRED TOOLS AND EQUIPMENT aaea enaena penetara ninaapa aen ah aa Aaaa aan iiaea nadaa odeon tenete nennen nnne nennen 8 SYSTEM OPERATION
3. 3100 Drive Interface 1 756 DM450 1756 SA500 Drive Interface 1755 DMB30 1756 SB3000 Drive Interface 1756 DMD30 1756 SD3000 Drive Interface 1756 SF3000 Drive Interface 55 Module Generic 17 1756 MODULE Show Vendor Other Specialty 1 0 Select All Analog Digital Communication Motion Controller Clear All Help Configuration Module s Properties From the Controller Organizer right click on the added module and open up Module Properties windows Imi Module Properties Local 2 1756 MODULE 1 1 Controller HELM 3 Tasks Motion Groups E Trends Type 1756 MODULE Generic 1756 Module 3 Data Types Parent Configuration r Connection Parameters ODULE TONNAGE1 Assembly Instance Size New Module Name TONNAGE Input Cut Ctrl C Description Output Paste GeV 4 Delete Del zl Configuration Cross Reference Data ALND Status Input General Connection Module Info Backplane Print Slot 2 Status Output Properties Status Offline Cancel hene __ in a for the module select a slot number 10 HM 1756 SGI Operating Instructions General Connection Parameters Assembly Size Instance Input 100 14 Output 190 9 Configura
4. 2 channels of strain gage input Two 700 ohm gages may be paralleled to one channel Module configuration requires manual and user programmable setup The module receives and stores digitally converted analog data into its image table for retrieval HM 1756 SGI PLM SPECIFICATIONS Backplane Power Consumption 10W Number of Channels 2 isolated Chassis Location Any I O module slot except 0 A D Conversion Method Successive Approximation 12 bit Normal Mode Rejection between input and input 50 db at 2000 gain AMP roll off frequency 650 Hz at 3000 Gain Calibration Manual Calibration Isolation 500 VDC continuous between inputs and chassis ground and between inputs and backplane LED Indicators STATUS ALARM OK Recommended Cable Operating Temperature Strain Gage Cable Helm part number 6117 0 to 60 C 32F to 140F Hazardous Environment Classification Type of Input Class 1 Division 2 Hazardous Environment Strain Gage 350 ohm 700 ohm Input Impedance 1K Display Resolution Up to 0 1 of full scale Overall Module Accuracy 1 of full scale Requested Packet Interval RPI 60 0ms HM 1756 SGI Operating Instructions GETTING STARTED This chapter can help you to get started using the Helm Strain Gage module The procedures included here assume that you have a basic understanding of ControlLogix
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6. automation control system that uses Allen Bradley small logic controllers You should have a basic understanding of ControlLogix 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 If you do not contact your local Helm representative for the proper training before using this product PURPOSE OF THIS MANUAL This manual is a learning and reference guide for the Helm ControlLogix Strain Gage Input Module It contains the information you need to install wire and use the module HM 1756 SGI Operating Instructions EE RELATED DOCUMENTATION Additional documents containing information that may be helpful to you as you use Allen Bradley ControlLogix products may be found at http Awww ab com manuals cl or from your local distributor TERMS AND ABBREVIATIONS The following terms and abbreviations are used throughout this manual For definitions of terms not listed here refer to A en Bradley s Industrial Automation Glossary Publication ICCG 7 1 Bypass Mode Enabled to perform calibration and setup procedures Calibration Procedure performed by trained personnel where machine or press is dynamically loaded to impact on load cells A process of linearity measuring to determine the loading capacity of the machine Calibration Number Amplification values established during machine calibration or pre assi
7. illustrative purposes Because of the many variables and requirements associated with any particular installation the Helm Instrument Company cannot assume responsibility or liability for actual use based on the examples and diagrams No patent liability is assumed by Helm Instrument Company with respect to use of information circuits equipment or software described in this manual Throughout this manual we use notes to make you aware of safety considerations ATTENTION Please refer to accompanying manuals Strain Gage Installation and Helm ControlLogix Navigator Software for additional information on the application of the Helm HM 1756 SGI PLM module ControlLogix Compact I O MicroLogix 1500 PLC PLC2 and PLC5 are registered trademarks of the Allen Bradley Company Inc SLC SLC500 PanelView RediPANEL Dataliner are trademarks of Allen Bradley Company Inc IBM is a registered trademark of International Business Machines Incorporated ForceGard is a registered trademark of the Helm Instrument Company Inc HM 1756 SGI Operating Instructions PREFACE Read this preface to become familiar 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 Helm Instrument support WHO SHOULD USE Use this manual if you are responsible for the design installation programming or maintenance of an
8. power supply is required You may install as many modules in your system as the power supply can support FRONT PANEL HELM STRAIN GAGE INPUT STATUS ALARM INDICATOR LIGHTS ANALOG RESOLVER CAM INPUT ANALOG RESOLVER CAM OUTPUT STRAIN GAGE INPUT CONNECTOR LOOK WNDOW amp OUTPUT amp 2 ANALOG OUTPUT Low GAIN HIGH GAIN STOP OUTPUT HIGH LOW GAIN SWITCH Status Alarm Indicator Lights Status light is on green when module is in Peak or Monitor Parts Mode Status light is off when module is in Calibrate Mode Alarm light is off when no tonnage fault is present Alarm light is on red when tonnage fault is present OK light is on green when PLC communication is OK Module Setup All values are 0 default on initial start up This means that all alarms are disabled You must make the following adjustments for proper operation set operating mode set meter scale set capacity maximum load alarms set sample count set trend alarms HM 1756 SGI Operating Instructions MODULE CONFIGURATION This shows the preliminary setup and operation required before the module can function in a 1756 I O system using RSLogix5000 Adding Module to I O Configuration Select 1756 MODULE Generic Module from Se ect Module window Select Module Type Se Major Revision 1756 MODULE 1 Description 1756 DMA30 1756 5 3000 Drive Interface 1755 DMA31 1756 5
9. 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 Because it is a start up guide this chapter does not contain detailed explanations about the procedures listed It does however reference other chapters in this book where you can get more information about applying the procedures described in each step It also references other documentation that may be helpful if you are unfamiliar with programming techniques or system installation requirements If you have any questions or are unfamiliar with the terms used or concepts presented in the procedural steps always read the referenced chapters and other recommended documentation before trying to apply the information This chapter will e tell you what equipment you need explain how to install and wire the module e show you how to calibrate the module REQUIRED TOOLS AND EQUIPMENT Have the following tools and equipment ready e small blade screwdriver e programming equipment All programming examples shown in this manual demonstrate the use of Rockwell RSLogix 5000 Software Helm CAM Prox Input Module HM 1756 SGI Operating Instructions SYSTEM OPERATION The module communicates to the controller through the serial backplane interface and receives 5Vdc and 24Vdc power from the controller power supply through the backplane No external
10. AGS Data Tags Data Bit Description Local x O Type Data 0 Bit 0 Bit 1 Alarm Reset Bit Ec E E AE 11111111 11111111 11111115 Bit 8 Set Calibrate mode Bit 9 Set Setup mode Bit 10 Set Monitor Mode Bit 11 Data 1 INT Set Scale Value Data 2 INT Set Ch1 High Capacity Alarm Value in Calibrate mode Data 3 INT Set Ch2 High Capacity Alarm Value in Calibrate mode Data 4 INT Set Sample Count 2 4 8 or 16 Data 5 INT Set Low Alarm Inhibit Count Data 6 L Byte Set Ch1 Low Tolerance value H Byte Set Ch1 High Tolerance value Data 7 L Byte Set Ch2 Low Tolerance value H Byte Set Ch2 High Tolerance value Data 8 Bit 0 Bit 1 Bit 2 Set Trend Alarm On Off switch bit Bit 3 Bit 4 Set Tolerance value type 1 Tolerance in 0 Tolerance in Percent Bit 5 Bit 6 Bit 7 H Byte INPUT TAGS Data Tags Data Bit Description Localx l Type Data 0 INT Update Counter Data 1 INT ASIC Fault Code Data 2 INT Ch1 Peak value in Ton in PEAK or MONITOR Mode Ch1 Calibrate number in CALIBRATE Mode Data 3 INT Ch2 Peak value in PEAK or MONITOR Mode Ch2 Calibrate number in CALIBRATE Mode Data 4 INT Ch1 Trend deviation in Percent or Ton Data 5 INT 2 Ch2 Trend deviation in Percent Data 6 INT Ch1 Sample value in Ton Data 7 INT Ch2 Sample value in Ton Data 8 INT Ch1 Rev
11. alues in Tons when learning sampling cycle is completed in Monitor mode Ch2 Reverse Load in Ton Integer word represents the peak reverse load value in tons for the current machine cycle 13 HM 1756 SGI Operating Instructions Capacity Alarm Indication Bit When on 1 the current load of the channel has met or exceeded the Capacity alarm set limit High Trend Indication Alarm Bit When on 1 the current peak load has met or exceeded the high tolerance percentage or tonnage setting from the sample tonnage High Trend Indication Alarm Bit When on 1 the current peak load has met or become below the low tolerance percentage or tonnage setting from the sample tonnage Module In Calibrate Mode Indication Bit This bit is reported by the module that the module is actually in Calibration mode when On 1 Module In Peak Mode Indication Bit This bit is reported by the module that the module is actually in Peak mode when On 1 Module In Monitor Mode Indication Bit This bit is reported by the module that the module is actually in Monitor mode when On 1 Sampling in progress Indication Bit This bit is reported by the module that the module is currently in learning sampling mode when On 1 Sample Ready Indication Bit stay On until the mode changes This bit is reported by the module that the module completed the learning cycle and established new sample tonnage when 1 Alarm Rest in progress bit This bit is reported by the module
12. e 0 to 99 Or 0 to 255ton Actual value need to be entered is High Tol x 256 Low Tol A value of 0 disables alarm Set Trend Alarm On Off switch bit When set on 1 Trend alarm is active in Monitor part Set off to disable it Set Tolerance value type bit When set on 1 the module takes the High Low Tolerance value setting as ton When set off 0 the module takes the High Low Tolerance value setting as percent 12 HM 1756 SGI Operating Instructions Input Tags The 14 word module input image input from the module to the processor represents data words and status words Data words hold the input data that represents the values of the sensor inputs Status words contain the various status conditions of the module Data Tags Data Bit Description Localx l Type Data 0 INT Update Counter Data 1 INT ASIC Fault Code Data 2 INT Ch1 Peak value in Ton in PEAK or MONITOR Mode Ch1 Calibrate number in CALIBRATE Mode Data 3 INT 5 Ch2 Peak value in Ton MONITOR Mode Ch2 Calibrate number in CALIBRATE Mode Data 4 INT 2 Ch1 Trend deviation in Percent or Ton Data 5 INT 5 Ch2 Trend deviation in Percent Data 6 INT Ch1 Sample value in Ton Data 7 INT Ch2 Sample value in Ton Data 8 INT Ch1 Reverse Load in Data 9 INT E Ch2 Reverse Load in Ton Data 10 Bit 0 Ch1 High Trend Alarm Indication Bit 1 Ch1 Low Trend Alarm Indication B
13. eral input signals to share a common A D converter Peak Mode Normally enabled during job setup HM 1756 SGI Operating Instructions Terms and Abbreviations Continued Sampling time The time required by the A D converter to sample an input channel Scale Value used to describe the press machine overall tonnage Set for maximum value of one channel For example settings for a 150 ton press 75 Status Word Contains status information about the channel s current configuration and operational state You can use this information in your ladder program to determine whether the channel data word is valid Strokes per Minute SPM Value calculated when a machine cycles through a complete rotation 0 to 360 degrees Update Time The time required for the module to sample and convert the input signals of all enabled input channels and make the resulting data values available to the controller HM 1756 SGI Operating Instructions TECHNIQUES USED IN THIS MANUAL The following conventions are used throughout this manual n Bulleted lists such as this one provide information not procedural steps Numbered lists provide sequential steps or hierarchical information PRODUCT SUPPORT Contact your Helm representative or call Helm direct at 419 893 4356 sales and order support product technical training warranty support support service agreements Your Questions or Comments on this Manual If you have any sugg
14. erse Load in Ton Data 9 INT Ch2 Reverse Load in Ton Data 10 Bit 0 Ch1 High Trend Alarm Indication Bit 1 Ch1 Low Trend Alarm Indication Bit 2 Ch2 High Trend Alarm Indication Bit 3 Ch2 Low Trend Alarm Indication Bit 4 Ch1 Capacity Alarm Indication Bit 5 Ch2 Capacity Alarm Indication Bit Data 11 Bit 0 Module In Calibrate Mode Indication Bit 1 Module In Peak Mode Indication Bit 2 Module In Monitor Mode Indication Bit 3 Sampling in progress Indication Bit 4 Sample Ready Indication Bit stay On until the mode changes 5 Alarm Rest in progress bit 6 CAM Trigger toggle bit Data 12 INT Cycle Counter Data 13 INT CAM Signal 19 HM 1756 SGI Operating Instructions APPENDIX B SENSOR SNM 203901803 I rr Z L SINIYA 151 534 5 TYNIWON OOP LH 88 10 8 AB 03 0382 D3N l53 v was sg can webs 14 SE OJdvONvVIS OL SHISN31 31843 404 SWHO NIHLIM JANSYIN 1 5 S3 lvA 3ONvISIS3H JAQAY 938 3Y 18 MOVIE N3349 034 NiiH9 034 MOv H N3349 O2 INJAAHLSNI NT3H 40 LNISNOD NILA 553444 3 JHL LNOHLIM 035012510 40 OFLVONdNG ON TIvHS 3JO0343Hl 4311 1237915 HO SNIMYHO JHL NOLSIO ANI 13 NILN3OLINO2 Sv NOA AG 0317341 38 OL SI 11 ONT OO INJANHLSNI 40 ALBdddQOdd 3 ISTIOX3 SI NO343Hl YALU 123 915 JHL SY Sv INAI SIHL
15. estions for how this manual could be made more useful to you please send us your ideas HM 1756 SGI Operating Instructions OVERVIEW You have just purchased the most advanced strain gage input module available HELM INSTRUMENT COMPANY INC manufactures a complete line of monitoring control solutions for use on metal stamping forging compaction and assembly presses cold forming cold heating injection molding and die cast machines Resolvers standard or custom transducers and load cells are available for in die monitoring of transfer or progressive tooling At HELM quality is inherent not only in the design of our products but in the attitudes of our employees as well We re working together to give you the best After all that s what our business is all about providing innovative instrumentation to help make your manufacturing process more productive and your operation more effective The Helm Strain Gage combines machine and tooling monitoring with programmable limit switch function User programmable high and low limits protect the machine and tooling to ensure part quality Critical setup information can be stored and uploaded as part of a die recipe program An optional resolver input module is used to compare machine press tonnage to crank angle for real time signature analysis The Helm Strain Gage module is attached to the controller or to an adjacent I O module on the din rail The system is comprised of two parts the inp
16. et Capacity Alarms This value is a discrete load tonnage value not a percentage NOTE Although the range of values for capacity alarm settings is 0 to 9999 it is recommended that you do not enter values that exceed the capacity rating of the machine press A value of 0 disables capacity alarm set To determine the maximum rating for each channel divide the total machine press capacity by the number of sensor inputs EXAMPLE A press or slide rated at 100 tons with a 2 channel force module would have a capacity alarm setting of 50 tons per sensor input This setting differs from the Scale setting as it can be adjusted up or down depending on the nature of the process The recommended maximum value is 195 of Machine Capacity Scale Set Sample Count The sample count is a user programmable parameter that tells the processor how many machine strokes are required to establish sample or benchmark load values The programmable values are 2 4 8 or 16 A value of 0 invalidates the Monitor Parts mode You should set Sample Count to a minimum of 2 to enable Monitor Parts mode Note Each time you change Monitor Parts mode bit from ON to OFF the sample value is cleared During normal operations Monitor Parts mode is enabled when beginning a process run If the process varies due to change in material thickness for example it may be necessary to take a new sample 18 HM 1756 SGI Operating Instructions APPENDIX A CONTROLLER TAGS OUTPUT T
17. ff of one channel It represents the maximum allowable load or tonnage from one sensor location Setting Machine Capacity Scale using 1 two channel module If 2 sensors are installed on the left and right sides of a 60 ton press set the Scale to 30 maximum capacity of one sensor Use the following table as a reference for setting the Machine Capacity Scale for a single force module installation with two sensors Divide the press machine capacity by the number of sensors 2 and set Scale to the result PRESS SCALE PRESS SWITCH PRESS SWITCH CAPACITY SETTING CAPACITY SETTING CAPACITY SETTING If 2 sensors are installed in the tooling rather than on the press structure set the Machine Capacity Scale to the highest load tonnage of one sensor Setting Machine Capacity Scale for multiple channel systems Divide the Machine capacity by the number of sensors and set Machine Capacity Scale on all modules to the result Example If 2 load modules are used for monitoring a straight side press with 4 sensors mounted on the press columns set the Machine Capacity Scale on both modules to the highest load tonnage of one sensor Use the following table as a reference for setting the Machine Capacity Scale for a system comprised of 2 force modules and 4 sensors PRESS SWITCH PRESS SWITCH PRESS SWITCH CAPACITY SETTING CAPACITY SETTING CAPACITY SETTING same on all same on all same on all 17 HM 1756 SGI Operating Instructions S
18. gned on force load cells Channel Refers to one of two strain gage inputs available on the modules terminal block Chassis A hardware assembly that houses devices such as I O modules adapter modules processor modules and power supplies Configuration Word Contains the channel configuration information needed by the module to configure and operate each channel Information is written to the configuration word through the logic supplied in your ladder program Data Word A 16 bit integer that represent the value of the analog input channel The channel data word is valid only when the channel is enabled Gain Amplification of an input signal Load Force Measurement of impact during a machine cycle Sensors provide the input for this measurement Look Window Resolver or cam activated window which allows specific degrees in a machine cycle to be processed Low Alarm Inhibit Number of consecutive machine cycles where low alarm is inhibited Used in a process where machine cycles several times before running speed is established LSB Least Significant Bit Refers to a data increment defined as the full scale range divided by the resolution The bit that represents the smallest value within a string of bits Monitor Parts Mode Status condition used during production run Sample and compare logic is enabled On resolver based systems tracking alarm limits can be enabled Multiplexer A switching system that allows sev
19. it 2 Ch2 High Trend Alarm Indication Bit 3 Ch2 Low Trend Alarm Indication Bit 4 Ch1 Capacity Alarm Indication Bit 5 Ch2 Capacity Alarm Indication Bit Data 11 Bit 0 Module In Calibrate Mode Indication Bit 1 Module In Peak Mode Indication Bit 2 Module In Monitor Mode Indication Bit 3 Sampling in progress Indication Bit 4 Sample Ready Indication Bit stay On until the mode changes 5 Alarm Rest in progress bit 6 CAM Trigger toggle bit Data 12 INT Cycle Counter Data 13 INT CAM Signal Update Counter Update Counter increments by one when every time the Input image tag has been updated with new data from the module ASIC Fault Code Reserved for firmware trouble shoot Ch1 2 Peak value in Ton Calibrate number Integer word represents peak load on channel 1 2 for current machine cycle in Peak and Monitor Mode In Calibrate mode this displays the sensor input balance when the three position switch is set to OFF center position on the front of panel of the module When the three position switch is set to Calibrate down position this displays the sensor s calibration gain number Ch1 2 Trend Deviation in Percent Integer word represents the difference between current peak load and sample peak load in percentage or tonnage This value can be used to control Trend deviation LED type display Only valid in Monitor mode Ch1 2 Sample value in Ton Integer word represents the average of the load v
20. it tette rte E A a bd aces Patre a a aa a 9 ES 9 MODULE 10 MODULE VO CGONTROLLER DATA TAGS niine 11 CALIBRATING MODULE WITH SENSOR nennt rien nennen nnne nnns 15 APPENDIX A CONTROLLER TAGS aaas 19 APPENDIX B SENSOR C 20 APPENDIX C SYSTEM CONNECTION esses 21 HM 1756 SGI Operating Instructions 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 Allen Bradley 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 is acceptable In no event will the Helm Instrument Company 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
21. mode to Calibration mode No alarms are active Note all other mode bit must be off 11 HM 1756 SGI Operating Instructions Set Peak Mode Bit Set On 1 to change the operation mode to Setup peak only monitoring mode Capacity alarms are active Note all other mode bit must be off Set Monitor Parts Mode Bit Set On 1 to change the operation mode to Monitor parts trend monitoring mode Capacity alarms are active trend alarms are active Note all other mode bit must be off Set Scale Value The maximum load rating of the machine per channel For example if the machine is rated at 500ton max and two load sensors are installed for the module then the scale set should be 250 Set Ch1 2 High Capacity Alarm Value Integer value of high capacity alarm setting Range 0 to 9999 A value of 0 disables alarm The value entered will not be valid in the module until in Calibrate mode Set Sample Count Enter one of the numbers 2 4 8 or 16 This is the number of cycles for the module to take to learn new sample Target tonnage for Trend alarm feature Set Low Alarm Inhibit Count Enter a number of cycles for module to inhibit low trend alarm when sampling is done in Monitor mode To disable this feature enter 0 Set Ch1 2 High Low Tolerance Value Integer values of high and low limit for trend alarm settings Values are set in percent or in ton and represent the maximum and minimum percent ton of change off the sample value Rang
22. ndow timing Refer to APPENDIX C for the connection details Note Helm CAM Prox Input Module provide clean and reliable timing signal for the HM1756 Module which allows the HM1756SIG module functioning properly over 1000 SPM machine operation Set the Run mode bit to Bypass From your operator interface put the tonnage module into bypass mode The STATUS light on the tonnage module will turn off Balance Sensor Input 1 Set three position switch to OFF center position 2 Adjust balance potentiometer until 05 are all displayed from Local x l Data 2 for Ch1 Local x l Data 3 for Ch2 3 If two sensors are wired follow this procedure for both channels Calibration Numbers 1 Setthree position switch to calibrate down position 2 Adjust Gain Potentiometer to dial in calibration numbers These number is displayed at Local x l Data 2 for Ch1 Local x I Data 3 for Ch2 3 If two sensors are wired follow this procedure for both channels Always make sure that the three position switch is in ON top position for Normal operation The remaining setup procedures can be accomplished with the Run Mode bit in either Bypass Peak or Monitor Parts Mode However the Bypass Mode should only be used when setting calibration values or zero balancing the sensor input HM 1756 SGI Operating Instructions Set Machine Capacity Scale The three position switch should be placed in the ON top position This setting is based o
23. that the module is currently resetting all alarm conditions when On 1 CAM Trigger Toggle bit This bit toggles between 0 and 1 when there is a state change of the CAM input from low to high If there is no CAM input state change the bit remains the same as the last bit state 14 HM 1756 SGI Operating Instructions CALIBRATING MODULE WITH SENSOR WIRING SENSOR S SF 1 SIGNAL WHITE CH 1 NOISE DRAIN GIC SHIELD CH 1 SIGNAL RED BOTH GAGE BLACk S BOTH GAGE GREEN CH 21 SIGNAL WHITF Tension Compression Operation Operation Green Gage Green Black Black Gage Black Green White Signal White White Red Signal Red Red Brown Shield Shield Shield SMELO TO MACHINE ET GREEN BLACK 350 OHMS SHIELD ANY CONDUCTOR WHITE GREEN BLACK WHITE RED GREEN RED 263 OHMS GREEN WHITE 263 OHMS WHITE BLACK 263 OHMS BLACK RED 263 OHMS LM HT400 STRAIN GAIN N 23521 HELM INSTRUMENT INC MAUMEE OHIO USA NOTE ABOVE RESISTANCE VALUES SHOULD MEASURE WITHIN 10 OHMS FOR CABLE LENGTHS UP TO STANDARD 35 FT HT 400 STRAIN GAIN SENSOR HM 1756 SGI Operating Instructions Connecting CAM Input for Look Window Timing Connect Helm CAM Prox Input Module to the HM1756SGI module with provided Coax Cable 24VDC timing input needs to be connected to CAM Input Module for Peak load wi
24. tion 1 0 Connection Requested Packet Interval RPI 60 0ms MODULE CONTROLLER DATA TAGS Output Tags The 9 word output data output from the CPU to the module contains Information that you configure to define the way the module will work Example If you want to access the module located in slot 2 in the ControlLogix chassis your data tag would be Local 2 0 and all 9 words are located as Loca 2 0 Data 0 8 Data Tags Data Bit Description Local x O Type Data 0 Bit 0 Bit 1 Alarm Reset Bit 8 Set Calibrate mode Bit 9 Set Setup mode Bit 10 Set Monitor Mode Bit 11 Data 1 INT Set Scale Value Data 2 INT Set Ch1 High Capacity Alarm Value in Calibrate mode Data 3 INT Set Ch2 High Capacity Alarm Value in Calibrate mode Data 4 INT Set Sample Count 2 4 8 or 16 Data 5 INT Set Low Alarm Inhibit Count Data 6 L Byte Set Ch1 Low Tolerance value H Byte Set Ch High Tolerance value Data 7 L Byte Set Ch2 Low Tolerance value H Byte Set Ch2 High Tolerance value Data 8 Bit 0 Bit 1 Bit 2 Set Trend Alarm On Off switch bit Bit 3 Bit 4 Set Tolerance value type 1 Tolerance in 0 Tolerance in Percent Bit 5 Bit 6 Bit 7 H Byte X slot number Alarm Reset Bit Set this bit On 1 for at least 50ms or longer to clear all present alarm condition of the module Set Calibrate Mode Bit Set On 1 to change the operation
25. ut module and two Helm Strain gage based sensors The primary part of the load monitoring system centers around the measurement The basic function of the Helm Strain Gain sensor is to detect the amount of deflection imposed on the press or die as parts are being formed All Strain Gain sensors are matched to within 1 and therefore can be replaced without recalibration of the machine The Helm Strain Gain sensors can be mounted to strategic high stress areas of the machine frame or strategically located in tooling or applied to stop blocks Signals from these sensors are routed to the Strain Gage module for processing The Helm Strain Gage is capable of measuring either a tension or compression signal e Sample and Compare Logic processor memorizes the sample or benchmark load and compares each machine cycle against this sample e User programmable Sample Count selectable number of machine cycles on which to base the sample e High and Low Capacity Alarm Sets a discrete load limit for a maximum allowable load and a minimum allowable load e High and Low Trend Alarm Sets set as a percentage of load change on an established sample e Low Alarm Inhibit User programmable option to disable low alarm during process start up HM 1756 SGI Operating Instructions HARDWARE OVERVIEW The HM 1756 SGI PLM module fits into any single slot It is a Class 1 module uses eight words and eight output words The module can accept
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