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FEATURES
•
Flowrate measurement for belt weighers
•
Flowrate Output
•
Material Totaliser
•
Modbus communications (independent
RS232 and RS485 ports)
•
USB Host & Device (memory stick & PC)
•
Field software upgrades
•
12-24Vdc power supply
•
Overall accuracy better than 0.01%
MD2,MP2 INDICATOR
•
IP54 Facia
•
2.8" (70mm) colour LCD
•
320 x 240
pixels
•
Polyester film tactile keypad
•
4-20mA output, 1 digital input & 2 digi-
tal outputs
MO3 I/O for MP2
•
4 Digital inputs
•
4 Digital outputs
•
4-20mA input (or 0-10V)
•
4-20mA output
MD1,MP1 INDICATOR
•
IP65 Facia
•
4.3" (109mm) colour LCD
•
480 x 272
pixels
•
Silicone tactile keypad
MT1 TRANSMITTER
•
Size 136 x 66 x 50mm
•
Optional removable P-Module holds cali-
bration settings
MT3 TRANSMITTER
•
Size 136 x 66 x 50mm
MR1 I/O
•
Size 136 x 66 x 30mm
•
8 Digital inputs
•
8 Digital outputs
•
4-20mA input (or 0-10V)
•
4-20mA output x 2
•
Pulse output
MW95A_IM_ALL_SV6.09f_en
Belt Weigher Instrument
Instruction Manual ALL
INCLUDES
Installation
•
Setting up principles
•
Setup Summary
•
I/O Function Table
•
Operation
•
Alarms
•
APPLIES TO
MW95A - Belt Weigher P-Module
•
MT1,MT3 - Transmitters
•
MD1,MD2 - Display
•
MP1,MP2 - Processor
•
MR1 - Remote IO
•
Software v6.09 onwards
•
material feed
F
D02
MD1,MP1
MT1
MR1
MW95A
loadcell
speed tacho
L
T
MD2,MP2
MT3
EMC INDUSTRIAL GROUP LTD
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Related Manuals for ModWeigh MW95A
Summary of Contents for ModWeigh MW95A
- Page 1 • Modbus communications (independent Alarms • RS232 and RS485 ports) APPLIES TO • USB Host & Device (memory stick & PC) MW95A - Belt Weigher P-Module • • Field software upgrades MT1,MT3 - Transmitters • • 12-24Vdc power supply •...
- Page 2 EMC INDUSTRIAL GROUP LTD Features AVAILABLE DOCUMENTATION PRODUCT DESCRIPTION DOCUMENTATION MW61 Weigher Instrument Technical Information Instruction Manual MW64 Batch Weigher Instrument Technical Information Instruction Manual MW65 Process Weigher Instrument Technical Information Instruction Manual MW93 Weight Change Instrument Technical Information Instruction Manual MW94 Impact Flowmeter Instrument Technical Information...
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Page 3: Table Of Contents
Using Chains MR1 Remote IO Using Chains & Belt Length No Correction Connections Motor integration Re-Calibration Batch Weighing SETUP – MW95A BELT WEIGHER......32 Belt Track Switches Basic Settings Calibration control I/O Engineering units Run/Stop/Pause Logic Measuring range Connection Principles Display resolution Connection Diagram –... - Page 4 EMC INDUSTRIAL GROUP LTD Features Memory Storage Communications & Display User data Comms port 1 – RS232 Comms port 2 – RS485 Outputs Display Analog output 1 (flowrate) CompactCom Analog output 2 (platform weight) Digital outputs Information & Resets Product Information Communications &...
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Page 5: Introduction
EMC INDUSTRIAL GROUP LTD Features INTRODUCTION Features Basic Units & Resolution The units for each variable type (weight etc.) can be selected from a list of metric and imperial units. The resolution of each variable type can be adjusted, this alters the count by e.g 100kg displayed in 0.2kg increments. -
Page 6: Outputs
Communications & Display Comms RS232 and RS485 ports are available. These are used to connect ModWeigh units together and also to connect to other systems. The protocol is either ASCII output for example to drive a printer or Modbus for interactive communications. Baud rates and node addresses are programmable. -
Page 7: Specifications
EMC INDUSTRIAL GROUP LTD Specifications MP2,MO3 MP1,MR1 MD1,MT1,MR1 MD2,MT1,MR1 MD1,MT3 MD2,MT3 MD1,MT3,MR1 MD2,MT3,MR1 Specifications Loadcell Input AI1 Input Range ±4 mV/V (0-20mV) Excitation 5 Vdc ±20 %, 250 mA maximum current Signal processing rate 100 Hz (response time setting≤ 0.5 s) Input sensitivity 0.5 µV/division maximum Zero range... -
Page 8: Digital Inputs Inx (Except In0)
EMC INDUSTRIAL GROUP LTD Specifications Terminal voltage Switching threshold 1.55 mA Hysteresis 0.2 mA Namur fault ‹0.1 mA or ›6 mA IN0 set to AC Voltage range 0.2 to 50 Vac Digital Inputs INx (except IN0) High voltage › 8 V Low voltage ‹... -
Page 9: Dimensions
DIN rail mount Connections Motor integration The following diagrams show various methods to connect a ModWeigh to a VSD drive or motor contac- tor. VSD Drive, keypad run/stop ModWeigh keypad used to start and stop the system. Can be used for batching applications. -
Page 10: Batch Weighing
STOP VSD OK NOT stop [INx, -1] run motor [OUT3, 56] VSD run input Motor Contactor, keypad run/stop ModWeigh keypad used to start and stop system. Contactor used to run motor. +24V run motor overload [OUT3, 56] motor contactor overload... -
Page 11: Belt Track Switches
EMC INDUSTRIAL GROUP LTD Connections +24V run motor [OUT3, 56] motor contactor (mc) START batch start [INx, 29] PAUSE pause [INx, 30] STOP NOT stop [INx, -1] disable START key • External Buttons for Batching – Method 3 Pressing START will reset the total and start the motor. If running, pressing PAUSE/STOP will stop the motor and pause. -
Page 12: Run/Stop/Pause Logic
Connection Principles ModWeigh instruments can be configured in many different ways to suit any given application. The display is normally located to suit an operator. The transmitter can be located in the field to reduce field wiring or can be located with the display for a more conventional approach. -
Page 13: Connection Diagram - Mp2
{MT1} OUT5 weight fault OUT6 belt speed fault OUT7 material feed OUT8 alarm alert COM3 PC, PLC −D TOTALISER ModWeigh Display Pulse Output MD1,MD2 +/~ OUT0 input −/~ OUT0 Analog Outputs +mAO2 Analog Input 2 platform weight +VI2 −mAO2 +mAI2... -
Page 14: Connection Diagram - Mp1
{MT1} OUT5 weight fault OUT6 belt speed fault OUT7 material feed OUT8 alarm alert COM3 PC, PLC −D TOTALISER ModWeigh Display Pulse Output MD1,MD2 +/~ OUT0 input −/~ OUT0 Analog Outputs +mAO2 Analog Input 2 platform weight +VI2 −mAO2 +mAI2... -
Page 15: Connection Diagram - Mt1
{MT1} OUT5 weight fault OUT6 belt speed fault OUT7 material feed OUT8 alarm alert COM3 PC, PLC −D TOTALISER ModWeigh Display Pulse Output MD1,MD2 +/~ OUT0 input −/~ OUT0 Analog Outputs +mAO2 Analog Input 2 platform weight +VI2 −mAO2 +mAI2... -
Page 16: Connection Diagram - Mt3
The loadcell(s) may be wired directly to the loadcell terminals or connected together in the field with a junction box and connected to the ModWeigh unit with a single cable. When connected to the terminals only a 4-wire connection is used, and digital corner adjustments are possible. -
Page 17: Tacho Connections
EMC INDUSTRIAL GROUP LTD Connections Loadcell 1 1 −E −EX/0V +SIG −S −SIG +SEN −SEN −E LOADCELL(s) −S optional sense for 6 wire connection Loadcells Wired to Junction Box 1 −E For best accuracy use a 6-wire connec- −S tion to controller −E −S Loadcell 1... -
Page 18: Multidrop Systems
An external Modbus master can alternatively be connected to an RS232 COM1 port. An MR1 unit cannot share the bus with a non ModWeigh master such as a PLC. A PLC could be con- nected using the COM3 port on the MR1. - Page 19 EMC INDUSTRIAL GROUP LTD Setup SETUP Basic Settings Loadcell OUT1 Calibration OUT2 Inputs Internal Signals Outputs OUT3 OUT4 OUT5 OUT6 OUT7 OUT8 COM1 Communications & Display Macros COM2 Information, Resets & Final Calibration Setup Diagram The Setup contains Settings Macros which are described next.
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Page 20: Keypad
EMC INDUSTRIAL GROUP LTD Setup Keypad MD1,MP1 Keypad ALARM SELECT DISPLAY SOFT KEYS SETUP BACK LEFT ENTER RIGHT DOWN MD2,MP2 Keypad ALARM SELECT DISPLAY SOFT KEYS SETUP BACK LEFT ENTER RIGHT DOWN SOFT keys The function of the 5 soft keys is indicated on the display. ALARM key Used to access the alarm list menu. -
Page 21: Description Of Menus
EMC INDUSTRIAL GROUP LTD Setup You can use the UP and DOWN keys to highlight a menu or sub-menu item, then press the ENTER key to continue from there. When viewing a setting, the UP and DOWN keys will move between the set- tings. -
Page 22: Macros
Used to encode printable characters (Unicode values 0 to 65536) outside the ASCII range.Sends the Unicode characters out COM1 with UTF8 encoding. Some characters can be used in the “system name macro” to appear on a ModWeigh display. arg0 and arg1 must be in the range 1 to 128. - Page 23 EMC INDUSTRIAL GROUP LTD Macros Alternate Instructions ‹ ‹ UC = (arg0 - 1) + (arg1 - 1) × 128 ALT0 arg1› arg0› UC = (arg0 - 1) + (arg1 - 1) × 128 + 16384 ‹ ‹ ALT1 arg1› arg0›...
- Page 24 EMC INDUSTRIAL GROUP LTD Macros Print Instructions PRINT_MENU_HEADING PRINT_MENU_PATH ‹column› is a number 1 to 99. Columns are numbered from 0. PRINT_QUICK_KEY FORMAT “format” NEWLINE ‹macro› is number 1 to 99. If ‹macro› = 101, lists macro number in NEWPAGE VALUE.
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Page 25: Adjusting A Macro
EMC INDUSTRIAL GROUP LTD Macros Looping and Control Instructions DRIVE_BIT ‹bit› value test IF ‹condition› 1-150 See I/O Function Table IF_EVENT ‹event condition› value test value test AND ‹condition› VALUE›=0 VALUE_ALTERED VALUE›0 VALUE_NOT_ALTERED OR ‹condition› VALUE=0 VALUE_VIEW_ONLY ELSE VALUE‹›0 DEC_temp1=0 END_IF VALUE‹0 with_stack... -
Page 26: Software Updating
Press this key to delete the code at the cursor. Software Updating ModWeigh instrument software can be upgraded in the field to add new features and other improve- ments. The following diagram shows the setup required for this purpose. Update with USB Drive... -
Page 27: Update With A Pc
ENTER at each stage. Restore and/or check settings. If this does not work, then turn the power off to the ModWeigh instrument and back on again as in- structed by the ModUpdater program. If you have any problems, you can contact your supplier. -
Page 28: Initial Setup
EMC INDUSTRIAL GROUP LTD Initial Setup Step Quick Keys Change the totaliser resolution and when the totaliser operates 234x OUTPUTS Change the 4-20mA output calibrations 241x 242x Set the digital output terminal functions 243x INFORMATION, RESETS & FINAL CALIBRATION Set key locks or customise the display 256xx Calibration setup 2651x... -
Page 29: Calibrate Belt Speed & Length
EMC INDUSTRIAL GROUP LTD Calibrate Belt Speed & Length Step Quick Keys Enter platform length 2223 mechanical measurement Calibrate Belt Speed & Length The belt speed tacho must be calibrated and some system length measurements entered into the in- strument. Following are three typical calibration methods which are characterised by how the belt speed is to be calibrated. -
Page 30: Belt Running
EMC INDUSTRIAL GROUP LTD Calibrate Correction Factor Step Quick Keys Calibrate loadcell 22321 remove all weights and set to 0 22322 apply test weights & enter test weight value Belt Running Dynamic weight calibration is done using either test weights applied to the weighing rollers or chains applied to the belt over the weigh platform with the belt running. -
Page 31: Using Chains
EMC INDUSTRIAL GROUP LTD Re-Calibration Step Quick Keys Calibrate zero with belt run- • run belt with no material and no test weights ning 26521 set to 1 to calibrate (press EDIT, 1 & ENTER) Calibrate with material 26522 set ‘measurement method’ to 4 or 5 (material) 4: quicker test 5: more accurate;... -
Page 32: Setup - Mw95A Belt Weigher
EMC INDUSTRIAL GROUP LTD Basic Settings SETUP – MW95A BELT WEIGHER Basic Settings Basic Settings Inputs Internal Signals Outputs Communications & Display Information, Resets & Final Calibration Engineering units These settings affect the engineering units that will be used for many other settings. The engineer- ing units can be changed at any time. -
Page 33: Clock
EMC INDUSTRIAL GROUP LTD Inputs Clock The unit has a real time clock. The clock is used to date stamp printouts and can cause printouts (or other events) to occur at user set times during the day or week. The clock will run continue to run for a few days or weeks without power. -
Page 34: Enter The Tacho Constant
EMC INDUSTRIAL GROUP LTD Inputs * Q2221 tacho constant (belt travel for 1000 tacho pulses) 8160 1.000 m Enter the Tacho Constant With this method, the tacho constant is obtained by calculation. This applies when for example the ta- cho is connected to the motor and gear box which drives the drum. It can also be used for a trailing wheel tacho. -
Page 35: Loadcell Input (Platform Weight)
EMC INDUSTRIAL GROUP LTD Inputs Q2227 belt speed response time 8162, g4 4=2s The response time for the speed signal. This should be adjusted to give a steady speed reading under normal conditions. Q2228 internal belt speed (set to 0 when using tacho) 8272, g4 0.000 m/s,m/min Set to 0 when using a tacho to measure the belt speed. -
Page 36: Calibrate Loadcell
EMC INDUSTRIAL GROUP LTD Inputs * Q22321 AI1 zero (remove all weight & set to zero) 8910 (shows weight) kg,t,g * Q22322 AI1 span (apply weight & enter weight value) 8912 (shows weight) kg,t,g Calibrate loadcell A known weight is applied to the weighing platform. This weight simulates a weight on the belt but is applied directly to the loadcell. - Page 37 EMC INDUSTRIAL GROUP LTD Inputs If you know or can estimate the deadload, key this in followed by ENTER. This value is the total weight of the mechanical components applied to the loadcell but excluding any material weight. Press and hold the BACK key to return to normal operation. If the deadload is unknown (as is usually the case), a loadcell zero should be performed.
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Page 38: Current/Voltage Input
EMC INDUSTRIAL GROUP LTD Internal Signals Re-zero the weight (use ‘AI1 zero’ QK22321 or ‘zero calibration’ QK26521). Current/Voltage input When AI2 is available, a remote setpoint signal can be connected as either a current (eg 4 to 20mA) or as a voltage (eg 0 to 10V). The transmitter auto-detects whether the current or voltage input is active and uses the relevant calibration from the following settings. -
Page 39: Flowrate
EMC INDUSTRIAL GROUP LTD Internal Signals Q23123 zero tracking band (set to 0 to disable) 8216, g5 0.0 divs Zero tracking is disabled if set to 0. When not set to zero, automatic zeroing is enabled. When enabled, the average weight is continu- ously measured over the belt length setting. -
Page 40: Limits
EMC INDUSTRIAL GROUP LTD Internal Signals Q2343 pulse output division 8314 0.02 kg,t,g Set the resolution of the external totaliser. Q2344 total weight 8730 0.00 TU Displays the weight totaliser. The total is retained after a power failure. Q2345 running total 8732, g6 0.00 TU Displays a running weight total. -
Page 41: Memory Storage
EMC INDUSTRIAL GROUP LTD Internal Signals Q2367 fault delay 8486, g8 10 s Delay used for belt speed, low platform weight and error limit faults. Q2369 fault options 8454 Allows selected faults to not raise an alarm. Speed demand The speed demand is a 0 to 100% signal used to control the flowrate. Q23731 speed demand (flow control speed signal) 8792... -
Page 42: User Data
EMC INDUSTRIAL GROUP LTD Outputs User data Additional user data which for example may be used by macros. The PERM settings are retained when the power is removed from the controller. The TEMP settings are not retained when the power is removed from the controller. Retained Q23911 perm 1... -
Page 43: Digital Outputs
EMC INDUSTRIAL GROUP LTD Communications & Display capacity of the signal). Q2424 AO2 current low 8536, g10 4.000 mA This is the low point of the analog output signal within the range 0 to 20 mA (typically set to 4mA). Q2425 AO2 current high 8538, g10... -
Page 44: Comms Port 2 - Rs485
EMC INDUSTRIAL GROUP LTD Communications & Display Q2515 COM1 handshake enable [0=disable, 1=enable] 8584, g12 When set to 1, hardware handshaking is enabled. Set to 0 to disable hardware handshaking. Q2510 COM1 error count 8810, g12 Comms port 2 - RS485 Q2521 COM2 baud rate (8 data, no parity, 2 stop) 8590, g12... -
Page 45: Printing & Macros
EMC INDUSTRIAL GROUP LTD Communications & Display Printing & Macros Q2551 print settings and macros 8922, g13 Used to start a print out of the settings or of the macros. Select the number of the print out required. number printout print quick settings print main settings print service macros... - Page 46 EMC INDUSTRIAL GROUP LTD Communications & Display Macro subroutines Q25541 system name macro 2000, g4 This macro sets the units name. This name is displayed by the display to identify the unit. Q25542 print key subroutine 2100, g13 A subroutine used by the print key macro. Q25543 print total key subroutine 2200, g13...
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Page 47: Display (Md1,Md2,Mp1,Mp2)
EMC INDUSTRIAL GROUP LTD Communications & Display Display (MD1,MD2,MP1,MP2) Operator menu 1 locks These settings allow operator menu items to be locked. These settings allow functions assigned to the number keys to be locked (ie password protected, locked out entirely or confirmation of the action requested). setting lock function Never locked... - Page 48 EMC INDUSTRIAL GROUP LTD Communications & Display Q25653 secondary line options 8648, g14 Controls the secondary line, below the main large display. Add up the numbers in the following table to change the display as described. Secondary line N2U2 (1234.56t) N1U1 (100%) Value Display...
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Page 49: Usb
8938 Set to 1 to save the setup to a file on a USB drive. It is saved in a folder called ModWeigh\Setup. The file will be named ‘AA PP SSSSS MM.csv, where AA is the modbuss address of the unit, PP is the prod- uct number, SSSSS is the units serial number and MM is the model of the unit. -
Page 50: Reset Settings
EMC INDUSTRIAL GROUP LTD Info, Resets & Final Cal Q2614 CPU type 8858 Displays the CPU type. Q2615 product key 8864 Displays the product key if it has been applied. Q2616 P-Module serial number 8860 Displays the serial number of the P-Module. Q2617 MR1 serial number 8862... - Page 51 EMC INDUSTRIAL GROUP LTD Info, Resets & Final Cal Before initiating a zero adjustment, the belt should be running with no material on the belt. Once suc- cessfully completed the average flowrate should read zero. Zero Calibration uses sets QK 2221 tacho constant QK 22333 deadload QK 2225 belt length QK 23126 zero weight...
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Page 52: Remote Operation Of Calibration
EMC INDUSTRIAL GROUP LTD Basic Settings Method Description 5 material long The total is measured as a known amount of material is passed over the conveyor. After the operator indicates the material test is complete, measur- ing continues until a whole number of belt rotations has occurred. uses sets QK 2225 belt length... -
Page 53: Communications & Display
EMC INDUSTRIAL GROUP LTD Communications & Display Q921922 weekday & time for DST 9914 Selects the day of the week and time when the daylight saving correction will be made. Q921923 start of daylight saving 9916 Selects the time of the year when daylight saving will start. Q921924 end of daylight saving 9918... -
Page 54: Compactcom
EMC INDUSTRIAL GROUP LTD Information & Resets Q925697 select loadcell transmitter Shows the currently connected unit and allows it to be manually selected. Q925698 select comm port select comm port description COM1 RS232 port COM2 RS485 port USB device (only if currently connected) USB host (only if currently connected) Shows the current comm port and allows it to be manually selected. - Page 55 EMC INDUSTRIAL GROUP LTD I/O Function Table Input Functions (edge sensitive ) CONTROL1 acquire zero 0 Ϯ The control1 register contains 16 level sensitive input signals. This register has 5 1 Ϯ control sources which are combined together. 2 Ϯ 3 Ϯ...
- Page 56 EMC INDUSTRIAL GROUP LTD I/O Function Table Output Functions limit 1 output limit 2 output limit 3 output in remote flowrate mode OUT0 OUT9 MO3 fitted disable macros MR1 connected Output Functions This register hold the state of inputs IN1 to IN8 and outputs OUT1 to OUT8. The status of IN0, IN9, OUT0 and OUT9 are in the status3 register OUT1 OUT2...
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Page 57: Operating Details
Modbus Access The communications ports of the ModWeigh Controllers (COM1 and COM2) use Modbus protocol. This can be used to access any data value and any user setting. The Modbus protocol supported is RTU. (ASCII mode is not supported). Transmission is with 8 data bits, no parity and 2 stop bits. -
Page 58: Operation
EMC INDUSTRIAL GROUP LTD Display are translated into Modbus register addresses. (Note with Modbus protocol, the actual address transmit- ted is one less than the register address. With some systems, you must specify an address one less than expected). Address Modbus Register Address Data description 1000 to 4999... -
Page 59: Keys
EMC INDUSTRIAL GROUP LTD Keys Zeroing status. The bar graph shows the belt rotation, the line extends from zero to full length over one belt revolution. The dots show that the platform weight was within the zero band for each of the last 3 belt revolutions. The absence of a dot indicates the weight was outside the band. -
Page 60: Actions
EMC INDUSTRIAL GROUP LTD Keys Icon Description Press key for menu of special functions. Press EDIT key to edit the setting. Icon Description The setting is locked. Password must be entered to edit. The setting can only be viewed. The setting has been changed from the default. The setting is being edited. - Page 61 EMC INDUSTRIAL GROUP LTD Keys For details on an alarm in the list, use the UP, DOWN and ENTER keys, or key in the number next to the alarm. Press BACK to exit the alarm menu, or press 6 to clear the alarms and exit the menu. Alarms Alarm Comments AI1 <...
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