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Chapter 2 - Specifications

2-1

CHAPTER 2 - SPECIFICATIONS

A Brief Description of
Chapter 2

Chapter 2 lists the specifications for the HI 1769-WS
& HI 1769-2WS Weigh Scale Modules. Specifica-
tions are listed for the standard instrument and for
optional equipment. The specifications listed are
designed to assist in the installation, operation and
troubleshooting of the instrument. All service person-
nel should be familiar with this section before
attempting an installation or repair of this instrument.

Specifications for a
Standard HI 1769-WS
Weigh Scale Module

Maximum Installed
Modules

8 modules - per power supply in a single bank (Mod-
ule(s) must be installed within 4 slots on either side of
the power supply)

Channels

1 Channel

HI 1769-WS

2 Channel

HI 1769-2WS

Conversion Rate

100 updates per second

Averages

1-255 User Selectable in single increments

Resolution

Internal:

1:8,388,608

Input

Up to four (4) 350 ohm Full Wheatstone Bridge,
Strain Gauge Load Sensors/Cells (5 volt excitation)
on one vessel.

Non-Linearity

0.0015% of Full Scale

WAVERSAVER

®

User Selectable

•

4.00 Hz

•

2.00 Hz

•

1.00 Hz (Default)

•

0.50 Hz

•

0.25 Hz

•

OFF

Common-Mode
Rejection

120dB from 59 to 61 Hz

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Содержание HI 1769-2WS

Страница 1: ...ate Headquarters 9440 Carroll Park Drive San Diego CA 92121 Phone 858 278 2900 FAX 858 278 6700 Web Site http www hardysolutions com Hardy Process Solutions Document Number 0596 0282 01 Rev T Copyright 2011 2013 Hardy Process Solutions All Rights Reserved Printed in the U S A 941028 ...

Страница 2: ...t audits and performance measurement Emergency troubleshooting and repair To request Emergency Service and Troubleshooting Start up Installation Calibration Verification or to discuss a Maintenance Agreement please call 800 821 5831 Option 4 or Emergency Service after hours Standard Hours 6 00 AM to 5 30 PM Pacific Standard Time and weekends Outside the U S Hardy Process Solutions has built a netw...

Страница 3: ...nal 1 4 Rate of Change 1 4 Return to Zero Test Optional 1 4 Weighing System Tests Optional 1 4 Auto Zero Tracking 1 5 CHAPTER 2 SPECIFICATIONS 2 1 A Brief Description of Chapter 2 2 1 Specifications for a Standard HI 1769 WS Weigh Scale Module 2 1 Maximum Installed Modules 2 1 Channels 2 1 Conversion Rate 2 1 Averages 2 1 Resolution 2 1 Input 2 1 Non Linearity 2 1 WAVERSAVER 2 1 Common Mode Reject...

Страница 4: ...NSTALLATION 3 1 A Brief Description of Chapter 3 3 1 Unpacking 3 1 Installing the HI 1769 WS or HI 1769 2WS to an Allen Bradley Compact or Micro Logix 1500 Processor 3 2 Installing the HI 1769 WS or HI 1769 2WS onto the CompactLogix and MicroLogix 1500 Bank 3 2 Installing the Module I O Connector 3 4 About the Module I O Connector 3 4 Installing the HI 1769 WS on a Din Rail 3 7 Load Cell Wiring Di...

Страница 5: ...ric Parameter 4 24 Setting the Motion Tolerance Value 4 24 Setting The Zero Tolerance Value 4 25 Setting the Auto Zero Tolerance Value 4 25 Setting the Number of Readings Averages 4 25 Setting the Span Weight Value 4 25 Setting the WAVERSAVER Value 4 25 CHAPTER 5 CALIBRATION5 1 A Brief Description of Chapter 5 5 1 Pre Calibration Procedures 5 1 Electrical Check Procedures 5 2 Load Cell Point Input...

Страница 6: ...HI 1769 WS HI 1769 2WS WEIGH SCALE MODULE iv Electrical 6 6 Mechanical Stability and Configuration Settings 6 7 INDEX ...

Страница 7: ...OSED POSITION3 9 INDUSTRY STANDARD LOAD CELLS WIRING DIAGRAM3 10 HARDY LOAD SENSOR C2 WIRING DIAGRAM3 11 REMOTE TERMINAL ASSEMBLY3 12 RTA DIN RAIL MOUNT3 12 RTA CABLE ASSEMBLY HI 1769 WS3 13 RTA CABLE SCHEMATIC HI 1769 WS3 13 RTA CABLE HI 1769 2WS3 13 RTA SCHEMATIC HI 1769 2WS3 14 EMI SUPPRESSION CORE3 15 SUPPRESSION CORE OPEN3 15 SUPPRESSION CORE INSTALLED3 16 HARDY HI 215IT JUNCTION BOX WIRING D...

Страница 8: ...TIES DIALOG BOX CONFIGURATION SIZE 48 WORD S4 9 CONTROLLER TAGS SLOT 14 15 CHAPTER 5 CALIBRATION5 1 PROPERLY INSTALLED LOAD CELL W NO BINDING5 2 MILLIVOLTS WEIGHT SCALE5 4 CHAPTER 6 TROUBLESHOOTING6 1 MECHANICAL INSPECTION6 2 LOAD SHARING AND LOAD SENSOR CHECKOUT6 4 GUIDELINES FOR INSTABILITIES ON FORMERLY OPERATING SYS TEMS6 5 GUIDELINES FOR INSTABILITIES ON FORMERLY OPERATING SYSTEMS ELEC TRI CA...

Страница 9: ...able bus connector To get the maximum service life from this product users should operate this module in accordance with recommended practices either implied or expressed in this manual Before using the Weigh Scale Module all users and maintenance per sonnel should read and understand all cautions warn ings and safety procedures either referenced or explicitly stated in this manual to ensure the s...

Страница 10: ...d and optional equipment and the Remote Termi nation Assembly RTA Chapter 4 Provides complete hardware Con figuration instructions for setting dip switches and jumpers Chapter 5 Provides all Calibration instruc tions Chapter 6 Pertains to the Troubleshooting procedures for repair of the instrument Hardy hopes that this manual meets your needs for information and operation All corrections or sugges...

Страница 11: ...1769 WS HI 1769 2WS is fitted with WAVERSAVER technology which eliminates the effects of vibratory forces present in all industrial weight control and measurement applications By eliminating the factor of vibratory forces the module is capable of identifying the actual weight data WAVERSAVER can be configured to ignore noise with frequencies as low as 0 25 Hz One of five higher additional cut off ...

Страница 12: ...e load cells on the system Rate of Change The ROC option measures and displays the rate at which a material enters or is dispensed from the scale over a period of time ROC data uses a 100 entry reg ister New weight values are written to the register at the rate of 1 100th of the time base The first register is subtracted from the 101st Register which is one time base older than the first register ...

Страница 13: ...d sensor to see if the load sensor might be causing the problem The ability to read the weight seen by each individual load sensor allows use of this test to make cornering leveling and load sharing adjustments to the weighing system AUTO ZERO TRACKING Auto Zero Tracking indicates zero weight as long as any live weight on the scale is below the set Auto Zero Tolerance this function is turned on an...

Страница 14: ...HI 1769 WS HI 1769 2WS WEIGH SCALE MODULE 1 6 ...

Страница 15: ...r of this instrument Specifications for a Standard HI 1769 WS Weigh Scale Module Maximum Installed Modules 8 modules per power supply in a single bank Mod ule s must be installed within 4 slots on either side of the power supply Channels 1 Channel HI 1769 WS 2 Channel HI 1769 2WS Conversion Rate 100 updates per second Averages 1 255 User Selectable in single increments Resolution Internal 1 8 388 ...

Страница 16: ...d sensors with IT Junction box Load Cell Excitation 5 VDC C2 Calibration Output Isolation from digital section 1000 VDC minimum Environmental Requirements Temperature Coefficient Less than 0 005 of full scale per degree C for Cal LO and Cal HI reference points Operating Temperature Range 0o C to 60o C 32o F to 140o F Storage Temperature Range 40o C to 85o C 40o F to 185o F Humidity Range 0 95 non ...

Страница 17: ...e channel module to the RTA Hardy Part D8 HI 1769 XX DC6 Cable Length 6 Ft 1 525 meters from 2 single or one dual module to the RTA HI 215IT Series Junction Box NEMA rated waterproof enclosure which sums from one to four load sensors load sensors PS1 NEMA 4 Painted Steel SS1 NEMA 4X Stainless Steel FG1 NEMA 4X Fiberglass Default Parameters Parameter Default Setting ChanActive On 1 Calib Type none ...

Страница 18: ...cies Up to 500 MHz Cable Types Multi strand Single Conductor Physical Dimensions Width 705 inches 17 9 mm Height 724 inches 18 39 mm Length 1 272 inches 32 3 mm ZeroTrackEnable False 0 ZeroTolerance 10 0 lbs 10 0 AutoZeroTolerance 10 0 lbs 10 0 MotionTolerance 5 0 lbs 5 0 Parameter Default Setting Table 2 1 Default Parameters ...

Страница 19: ...for assistance Unpacking Step 1 Before signing the packing slip inspect the packing for damage of any kind Step 2 Report any damage to the carrier company immediately Step 3 Check to see that everything in the pack age matches the bill of lading You should normally have HI 1769 WS or HI 1769 2WS Weigh Scale Module Operation Installation Manual Step 4 Write down the Model and Serial number of the m...

Страница 20: ... electrostatic discharged prior to handling the module Handle the module from the bezel in front away from the connector Never NEVER touch the connector pins Wiring must be in accordance with Class I Division 2 wiring methods of the National Electrical Code NFPA 70 and acceptable to the authority having jurisdiction Do not install the module right next to an AC or high voltage DC module Route all ...

Страница 21: ...Chapter 3 Installation 3 3 FIG 3 1 POSITIONING THE MODULE FOR INSTALLATION Step 2 Pull Lever B back to the unlock position FIG 3 2 CONNECTOR UNLOCK POSITION Lever A Lever B Module A Module B ...

Страница 22: ...odule A See Fig 3 3 FIG 3 3 CONNECTOR IN LOCKED POSITION Step 5 The installation is comple Installing the Module I O Connector About the Module I O Connector The I O Connector at the front of the module connects the module to the Remote Terminal Assembly RTA a load sensor or the HI 215IT Series Junction Box depending on how many load sensors are installed in the weighing system See below for the p...

Страница 23: ...screws that fasten the connector to the module See Fig 3 5 Step 3 Gently pull the connector off of the board in the module Single Channel Pin 1 Shield1 Pin 3 C2 1 Pin 5 C2 1 Pin 7 Exc 1 Pin 9 Sen 1 Pin 11 Sig 1 Pin 13 Sig 1 Pin 15 Sen 1 Pin 17 Exc 1 Dual Channel Pin 1 Shield1 Pin 3 C2 1 Pin 5 C2 1 Pin 7 Exc 1 Pin 9 Sen 1 Pin 11 Sig 1 Pin 13 Sig 1 Pin 15 Sen 1 Pin 17 Exc 1 Pin 2 Shield2 Pin 4 C2 2 ...

Страница 24: ...HI 1769 WS HI 1769 2WS WEIGH SCALE MODULE 3 6 Step 4 To install the connector reverse steps 2 3 FIG 3 4 MODULE CONNECTOR INSTALLED ...

Страница 25: ... wires are securely connected before operating the module NOTE Most of the problems with modules are due to loose connections Be sure to check the I O connection first in the event you have a problem receiving information from the load cells Installing the HI 1769 WS on a Din Rail Step 1 Pull the two DIN rail fasteners out until they snap into the open position See Fig 3 6 ...

Страница 26: ...dule on the DIN rail Step 3 While holding the module in place press the two rail fasteners towards the center of the module until they both snap into place See Fig 3 7 Step 4 The module is now securely fastened to the DIN Rail Step 5 To remove the module from the DIN rail reverse steps 2 3 above Rail Fasteners ...

Страница 27: ...Chapter 3 Installation 3 9 FIG 3 7 RAIL FASTENERS IN THE CLOSED POSITION ...

Страница 28: ...HI 1769 WS HI 1769 2WS WEIGH SCALE MODULE 3 10 Load Cell Wiring Diagrams Industry Standard Load Cells FIG 3 8 INDUSTRY STANDARD LOAD CELLS WIRING DIAGRAM ...

Страница 29: ...DVANTAGE OR ADVANTAGE LITE LOAD SENSOR CABLE BECAUSE YOUR C2 ACCURACY WILL BE AFFECTED AND THE WARRANTY VOIDED HI 1769 Remote Terminal Assembly HI 1769 XX RT Provides connection points between the cable assem bly from the HI 1769 WS module and the individual wires from the junction box es or load sensor s See Fig 3 10 The RTA can be mounted on a DIN Rail See Fig 3 11 ...

Страница 30: ...I 1769 2WS WEIGH SCALE MODULE 3 12 FIG 3 10 REMOTE TERMINAL ASSEMBLY FIG 3 11 RTA DIN RAIL MOUNT RTA Cable Assembly Six 6 foot cable and schematic that connects to the HI 1769 WS module See Figs 3 12 3 13 59mm 2 3 ...

Страница 31: ...apter 3 Installation 3 13 FIG 3 12 RTA CABLE ASSEMBLY HI 1769 WS FIG 3 13 RTA CABLE SCHEMATIC HI 1769 WS Six 6 foot cable that connects to the HI 1769 2WS See Figs 3 14 3 15 FIG 3 14 RTA CABLE HI 1769 2WS ...

Страница 32: ...ores for the dual channel model Step 1 There should be enough of the individual strands of wire exposed to install the sup pression core If there is not enough room remove enough of the cable cover until you can place the suppression core around all the wire strands Step 2 Place the suppression core as close to the module door as possible and still be able to close the door Step 3 To open the supp...

Страница 33: ...RESSION CORE Step 4 Open the core until it is wide enough to enclose all the strands of wire See Fig 3 17 FIG 3 17 SUPPRESSION CORE OPEN Step 5 Place all the wire strands in the core and gently close the core until it snaps shut See Fig 3 18 Latch ...

Страница 34: ... Hardy HI 215IT Junction Box FIG 3 19 HARDY HI 215IT JUNCTION BOX WIRING DIAGRAM NOTE When connecting the Hardy HI 215IT Junction Box you must remove the two factory installed jumpers 17 15 and 7 9 on the module install sense lines except when installing four 4 wire non C2 load cells ...

Страница 35: ...the user and service personnel be familiar with the procedures contained in this chapter before going through the setup procedures The Setup procedures require Allen Bradley s RS Logix 5000 CompactLogix or RS Logix 500 MicroLogix 1500 Allen Bradley RSLinx or RSLinx Lite Power Check Step 1 Check to see that there is power to the PLC and the module Step 2 If there is power to the module the LEDS sho...

Страница 36: ...unning Normal Slow Flashing Green Error No Calibration Steady Red Error ERRORADFAILURE hardware induced status bit is set Flashing Red Read AD Convert Error LED is Off Channel is not Enabled OK Module Status LED Fast Flashing Green Module communicating with PLC Normal Slow Flashing Red Module is not Communicating with the PLC Not Normal Error configuration error in PLC addressing NOTE Slow Flashin...

Страница 37: ...For REV A the setting is 0 For all other REVs the set ting is 48 To set up communication between the MicroLogix 1500 Processor and the Weigh Scale Module you will need to do the following in RSLogix 500 Step 1 We assume you have a project open or have created a new project For instruc tions please see your RS LOGIX 500 man ual The setup instructions begin from this point Step 2 From the I O Config...

Страница 38: ... the I O information and enters them into the con figuration text fields See Fig 4 4 FIG 4 4 READ I O CONFIGURATION FROM ONLINE PROCESSOR DIALOG BOX Step 5 The HI 1769 WS I O is configured and ready to communicate with the MicroLogix 1500 Processor Step 6 For Firmware REV B you need to double click on the module which opens the Con nection Parameters dialog box Change the Extra Data Length from a ...

Страница 39: ...ogix 500 for MicroLogix 1500 To set up communication between the MicroLogix 1500 Processor and the Weigh Scale Module you will need to do the following in RSLogix 500 Step 1 Under Project click on the next to con troller See Fig 4 6 Step 2 Click on I O Configuration The I O Con figuration dialog box appears See Fig 4 7 ...

Страница 40: ...Step 3 From the I O Configuration dialog box under the column heading click on 1 or the next open slot number available See Fig 4 8 Step 4 In the Current Cards Available double click on Other Requires I O Type Card ID under the Description column head ing Step 5 Enter the following in the appropriate text fields ...

Страница 41: ...e REV A or 48 for later Firmware REVs Step 6 Click on the Apply button Step 7 OTHER appears under the Part col umn heading See Fig 4 8 FIG 4 8 I O CONFIGURATION DIALOG BOX Step 8 The HI 1769 WS I O is configured and ready to communicate with the MicroLogix 1500 Processor Configuring the HI 1769 WS in RSLogix 5000 for CompactLogix To set up communication between the CompactLogix Processor and the W...

Страница 42: ...E 4 8 FIG 4 9 SELECTING COMPACTBUS LOCAL Step 2 Right click on CompactBus Local A dia log box appears Step 3 Click on New Module The Select Module Type dialog box appears See Fig 4 10 FIG 4 10 SELECT MODULE TYPE SELECTING 1769 MODULE GENERIC ...

Страница 43: ... on the 1769 Generic Module Step 6 Click on the OK button The Module Prop erties dialog box appears See Figs 4 11 12 FIG 4 11 MODULE PROPERTIES DIALOG BOX CONFIGURATION SIZE 0 WORDS FIG 4 12 MODULE PROPERTIES DIALOG BOX CONFIGURATION SIZE 48 WORDS Step 7 Click in the Name Text box Enter a descriptive name for the module We used Hardy_1769WS for example ...

Страница 44: ...r down arrows to select 32 words Step 14 Under Connection Parameters Configura tion use the up or down arrows to select For Firmware REV A 0 words For other Firmware REVs 48 words Step 15 Click on the Finish button Parameters for the HI 1769 WS Module About Parameters The data types that can appear in the I O files are 16 bit integer 32 bit integer 32 bit IEEE float NOTE In the 32 bit types the le...

Страница 45: ... bit integer set to 1 if the channel is active 0 if not active 1 Metric 16 bit integer which determines the format of weight values Metric is the sum of 3 fields 1 If bit 7 is set 0x80 weight is displayed in Kilograms 2 If bit 6 is set 0x40 weight is displayed as a floating point 3 If bit 6 is not set Weight is displayed as an integer with the 3 least significant bits giving the number of decimal ...

Страница 46: ...ameter 10 0 lbs ZeroTolerance 32 bit weight value format determined by value of Metric Parameter 10 0 lbs Motion Tolerance 32 bit weight value format determined by value of Metric Parameter 5 lbs tareweight 32 bit weight value format determined by value of Metric Parameter 0 lbs SpanWeight 32 bit weight value format determined by value of Metric Parameter Span Weight is the test weight used at the...

Страница 47: ... Parameters labeled REAL or DINT will be inter preted as floating point or integer according to the value of the METRIC parameter of the channel If bit 6 0x40 of METRIC is set the parameter is float ing point If bit 6 is not set it is a fixed point integer with 0 7 decimal places as determined the first 3 bits of the METRIC parameter Parameter Offset In Words Data Type Ch0CopyConfig 0 INT Ch0ChanA...

Страница 48: ...e2 22 INT Ch0Spare3 23 INT Ch1CopyConfig 24 INT Ch1ChanActive 25 INT Ch1Metric 26 INT Ch1Waversaver 27 INT Ch1NumAverages 28 INT Ch1ZeroTrackEnable 29 INT Ch1AutoZeroTolerance 30 REAL or INT Ch1MotionTolerance 32 REAL or INT Ch1ZeroTolerance 34 REAL or INT Ch1SpanWeight 36 REAL or INT Ch1CalLowWeight 38 REAL or INT Ch1ROCtimebase 40 INT Ch1CopyCal 41 INT Ch1calzerocount 42 DINT Ch1CalHighCount 44 ...

Страница 49: ...rved for Channel 0 The second 16 words are reserved for Channel 1 The first word in the 16 words of a channel s output table is called the COMMAND word See the COMMAND table for a list of commands The other words in the output data table may need to be set according to which command is being given The commands are executed only once when the COMMAND word changes The first word in the channel s inp...

Страница 50: ...needs other data with it the other words in the output table should be filled in first then the command number Example WRITEPARAM0 should have PARAMETER0 Data placed into the output table before the command number is written otherwise the com mand will fail Possible COMMAND STATUS Values define SUCCESS 0 define ERRORADCONVERT 0x0001 define ERRORADFAILURE 0x0002 define STATUSINMOTION 0x0040 define ...

Страница 51: ...meter I 9 Calibration Type Hard Calibration 0 C2 Calibration 1 No Calibration 0xFFFF I 10 ADC Counts LSW I 11 ADC Counts MSW I 12 ROC units min I 13 ROC units min I 14 Serial Number I 15 ADC Conversion Counter ZEROCMD 1 Zeroes the scale May fail if the weight is in motion or if there is an A D error or if the weight to be zeroed out is outside the Zero Tolerance range O 0 1 O 1 O 15 unused I 0 1 I...

Страница 52: ...ating RELOADNONVOLATILE 0X10 Reread the non volatile memory O 0 0x10 O 1 O 15 unused I 0 0x10 I 1 0 I 2 I 15 See NOCMD continuously updating CALLOWCMD 0x64 Do the low step of a Hard Calibration Results saved to non volatile memory O 0 0x64 O 1 O 15 unused I 0 0x64 I 1 COMMAND STATUS I 2 I 15 See NOCMD continuously updating CALHIGHCMD 0x65 Do the high setpoint of a Hard Calibration Results saved to...

Страница 53: ...tive O 3 Metric O 4 WAVERSAVER O 5 NumAverages O 6 ZeroTrackEnable O 7 ROCtimebase 1 1800 sec O 8 AutoZeroTolerance LSW O 9 AutoZeroTolerance MSW O 10 MotionTolerance LSW O 11 Motion Tolerance MSW O 12 ZeroTolerance LSW O 13 ZeroTolerance MSW O 14 O 15 unused I 0 0x67 I 1 COMMAND STATUS I 2 I 15 See READPARAM0 WRITEPARAM1 0X68 If you attempt to set a parameter value to an illegal value the offset ...

Страница 54: ...lock contains some non user settable calibration parameters zerocount A D counts at the last ZEROCMD calzerocount A D counts at zero weight as obtained at the last calibration CalLowCount A D counts at CalLowWeight CalHighCount A D counts at Span Weight Hard Calibration only O0 0x6A O 1 O 15 unused I 0 0x6A I 1 0 I 2 tareweight LSW I 3 tareweight MSW I 4 SpanWeight LSW I 5 SpanWeight MSW I 6 CalLo...

Страница 55: ...l to switch in O onboard reference signal 1 4 load cell signals on IT JBOX 5 reference signal from IT JBOX I 0 0x6B I 1 COMMAND STATUS NOTE The COMMAND STATUS INDEXOUTOFRANGE 4 is returned if a signal outside the 0 5 range is requested if you have an IT JBOX or if a signal other than 0 onboard refer ence signal is requested and you do not have an IT JBOX I 2 I 15 See NOCMD continuously updating NO...

Страница 56: ... decimal places Load Cell resistance has zero decimal places Sense Volts has 2 decimal places I 2 millivolts volt combined LSW I 3 millivolts volt combined MSW I 4 millivolts volt load sensor 1 LSW I 5 millivolts volt load sensor 1 MSW I 6 millivolts volt load sensor 2 LSW I 7 millivolts volt load sensor 2 MSW I 8 millivolts volt load sensor 3 LSW I 9 millivolts volt load sensor 3 MSW I 10 millivo...

Страница 57: ... MSW I 8 gross weight on load sensor 3 LSW I 9 gross weight on load sensor 3 MSW I 10 gross weight on load sensor 4 LSW I 11 gross weight on load sensor 4 MSW I 12 Internal reference weight LSW I 13 Internal reference weight MSW I 14 JBOX reference weight LSW I 15 JBOS reference weight MSW C2SEARCH 0x6E Search for C2 load sensors The COMMAND STATUS is the number of sensors found O 0 0x6E O 1 15 un...

Страница 58: ...erance Value The motion tolerance is the tolerance value used to determine if the scale is in motion READC2SERIALNUM 0x70 Read data from a C2 sensor The C2SEARCH command must be performed before this command is done O 0 0x70 O 1 SENSOR NUMBER 0 7 I 0 0x70 I 1 COMMAND STATUS I 2 9 Serial Number I 10 Sensitivity LSW I 11 Sensitivity MSW I 12 Capacity LSW I 13 Capacity MSW NOTE Sensitivity is an inte...

Страница 59: ...erages The Number of Averages sets the number of weight readings which will be used to compute the displayed weight The average is a sliding average so that a new average reading is available for display at every read ing Setting the Span Weight Value The Span Weight is a reference point derived from an actual measured weight This should not be confused with the scale capacity If you have a 100 po...

Страница 60: ...HI 1769 WS HI 1769 2WS WEIGH SCALE MODULE 4 26 ...

Страница 61: ...onnel be familiar with the procedures con tained in this chapter before installing or operating the Weigh Module NOTE Do not perform a calibration while the application is in operation Pre Calibration Procedures Step 1 Check to determine if the load cells have been properly installed a Refer to your load cell I M manual for proper installation instructions b On some sensors and cells there is an a...

Страница 62: ...s draped across the scale vessel or the load cell such as a hose electrical cord tubes or other objects c Check to see that nothing is coming in contact with the scale vessel other than service wires and piping that have been properly mounted with flexible connec tors FIG 5 1 PROPERLY INSTALLED LOAD CELL W NO BINDING Electrical Check Procedures Load Cell Point Input Output Measurements Step 3 Typi...

Страница 63: ...y of the system which includes the weight of the vessel and the weight of the product as measured by the load cell point d If the load cell point weight capacity is rated at 1000 pounds the load cell point will be 10 mVDC at 1000 pounds 7 5 mVDC at 750 pounds 5 mVDC at 500 pounds and so on e A zero reference point will vary from system to system depending on the Dead Load of the vessel Dead Load i...

Страница 64: ...ute 0 mVDC or absolute 0 weight NOTE Load cell point measurements are checked with a dig ital volt meter at the J1 connector on the front of the module or by using INTEGRATED TECHNICIAN with the HI 215IT Junction Box Load Check Step 1 Place a load weight on the scale or ves sel Step 2 Check to see if the weight reading changes on the ladder logic display in the proper direction For example If the ...

Страница 65: ...ires C2 load sensors If you do not have C2 load sensors you must perform a traditional calibration with test weights which we call a Hard Calibration The Weigh Module reads the perfor mance characteristics of each individual load cell and detects the quantity of load cell s in the system C2 Calibration can be performed via Allen Bradley RS LOGIX 5000 500 C2 Calibration Using Ladder Logic Step 1 Ch...

Страница 66: ... a ladder logic model only Your application may vary and the example may or may not meet your requirements Step 3 The Hard Calibration Ladder Logic Exam ple is located at the Hardy Web Site If you have access to the Internet a Type the following URL http www hardysolutions com b Click on the Support button c Click on Sample Programs d Click on the pull down menu for the product you are calibrating...

Страница 67: ...bleshooting and resolution of operating problems that may occur All maintenance personnel and users should be familiar with Chapter 6 before attempting to repair the HI 1769 WS Scale LED is Flashing Red Solution Check all the connections to be sure they are securely fastened Reinstall if any appear to be loose Mechanical Inspection See Fig 6 1 ...

Страница 68: ...res should be avoided 3 Do not use flexures to correct for misaligned piping 4 Do not use hose flexures to make right angle bends 5 Non flexed piping should have an unsupported horizontal run using a ratio of 36 times it s diameter 6 Pipe flexure lengths should be a ratio of 6 times it s diameter 7 Feed and discharge piping flexed 8 Are the flex joints on the correct side of the valve a You weigh ...

Страница 69: ...TE On balancing load cells the overall objective is to insure each load cell sees a positive millivolt reading When weight is evenly applied all load cells signals should increase the same amount NOTE Insure the millivolt distribution is equal enough so not to overload any one load cell ...

Страница 70: ...e to motors and piping should not exceed 2 mV c If there isn t any motors valves or piping to explain the mV difference adjust the corners and balance the mV readings d Use shims or if equipped adjusting bolts on the load cell mounting hardware e Drawing a load cell map will help determine the correct leg to adjust and in which direction Three load cells balance like a three legged chair 1 Using a...

Страница 71: ...erating Systems See Figure 6 3 FIG 6 3 GUIDELINES FOR INSTABILITIES ON FORMERLY OPERAT ING SYSTEMS Check for Electrical Stability OK Check for Mechanical Stability OK Check for Mechanical Stability OK Contact Hardy Instruments Service Center B1 B2 B3 No Yes Yes Yes Yes No No ...

Страница 72: ... Ground straps must be installed to provide a direct discharge path to ground around the load points B1 4 Cable Routing Separate high voltage sources and cables from low voltage signal cables Stay a minimum of 14 inches from Magnetic fields and SCR controls Avoid parallel high voltage and signal cable runs B1 5 Cable Shielding Ground low voltage cable shields only at the controller end Gounding bo...

Страница 73: ...ulty load cells Piping and motors will effect effect the individual load cell readings Allow for a higher reading on load cells that support motors and piping Insure pneumatic lines are not applying pressure to the vessel when energized Use check stay rods to minimize vessel movement Insure the check rods are loose and not interacting with the vessel Power down all vibration vacuum and pressurizat...

Страница 74: ...HI 1769 WS HI 1769 2WS MANUAL 6 8 ...

Страница 75: ...f Description of Chapter 1 1 1 A Brief Description of Chapter 2 2 1 A Brief Description of Chapter 3 3 1 A Brief Description of Chapter 4 4 1 A Brief Description of Chapter 5 5 1 A Brief Description of Chapter 6 6 1 abnormal mechanical forces 1 4 About C2 Calibration 5 5 About Commands 4 15 About Hardy Manuals 1 2 About Parameters 4 10 About the Module I O Connector 3 4 AC or high voltage DC modul...

Страница 76: ...g 3 1 Binding 5 1 C C2 Calibration 5 5 C2 Calibration Input 2 2 C2 Calibration Output 2 2 C2 Calibration Using Ladder Logic 5 5 C2 load sensors 5 5 C2 Calibration 1 3 cable 3 7 cable cover 3 14 Cable lengths 2 2 calibrated electronically 1 3 Calibration 1 2 Calibration Setup Procedures 4 24 CE requirements 3 14 Channel 0 4 15 Channel 1 4 15 CHANNEL STATUS WORD 4 10 Channels 2 1 Comm Format 4 10 Co...

Страница 77: ...Input 4 10 Connection Parameters Output 4 10 ControlLogix I O 1 2 Conversion Rate 2 1 Customer Support Department 1 1 D damaged load sensors 1 4 Data INT 4 10 Dead Load 5 3 Default Parameters 2 3 Description 1 2 Description Text Box 4 10 Digital Volt Meter 1 4 Digital Voltmeter 2 2 DIN rail fasteners 3 7 DINT 4 13 DVM 1 4 DVM readings 1 4 E Electrical 6 6 Electrical Check Procedures 5 2 electrosta...

Страница 78: ...ox 3 16 Hardy Instruments C2 certified load sensors 1 3 Hardy Load Sensor with C2 3 11 HI 1756 Remote Terminal Assembly 3 11 HI 1769 WS Compact and Micro Logix I O Weigh Scale Modules 1 1 HI 1769 XX RT 3 11 HI 215IT Junction Box 1 4 HI 215IT Series Junction Box 1 4 2 3 3 4 high voltage cables 3 2 http www hardyinst com 5 5 Humidity Range 2 2 I I O Configuration 4 5 I O Configuration dialog box 4 3...

Страница 79: ...ring Diagrams 3 10 Load Cell Point Input Output Measurements 5 2 Load Check 5 4 Load Sharing and Load Sensor Checkout 6 3 loose connections 3 7 M Maximum Installed Modules 2 1 Mechanical Inspection 6 1 Mechanical Stability and Configuration Settings 6 7 METRIC 4 13 METRIC parameter 4 13 Metric parameter 4 10 MicroLogix 1500 Bank 3 2 MicroLogix 1500 Processor 4 3 4 4 4 7 MicroLogix 1500 programmabl...

Страница 80: ...view 1 2 P Parameters for the HI 1756 WS 2WS Module 4 15 Possible COMMAND STATUS Values 4 16 Pre Calibration Procedures 5 1 R Read IO Config button 4 4 Read IO Configuration from Online Processor dialog box 4 4 REAL 4 13 Remote Terminal Assembly 3 4 Remote Termination Assembly 1 2 Removing the Module from the Chassis 3 4 Report any damage 3 1 Resolution 2 1 Return to Zero Test 1 4 RS Logix 500 4 1...

Страница 81: ...Value 4 25 Setting The Zero Tolerance Value 4 25 Setting Up Communications Between the MicroLogix 1500 Processor and the HI 1769 WS Weigh Scale Module 4 3 single module 1 2 Specifications 1 2 Specifications for a Standard HI 1756 WS 2 1 Storage Temperature Range 2 2 T Technical Publications Department 1 2 Temperature Coefficient 2 2 The I O Connector 3 4 Troubleshooting 1 2 U unlock position 3 3 U...

Страница 82: ...HI 1769 WS HI 1769 2WS MANUAL Weighing System Tests 1 4 wrist strap grounding device 3 2 ...

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