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Operation Manual EMGZ473/474
Digital microprocessor controlled Tension Measuring
®
Amplifier with integrated PROFIBUS
interface
Operation Manual Version 2.03 02/03 ff
Firmware Version 1.04 02/03
GSD Version 1.03 05/02
This operating manual is also available in German.
Please contact your local representative.
Diese Bedienungsanleitung ist auch in Deutsch erhältlich.
Bitte kontaktieren Sie Ihren nächstgelegenen FMS Vertreter.
© by FMS Force Measuring Systems AG, CH-8154 Oberglatt – All rights reserved.
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Summary of Contents for FMS EMGZ473
- Page 1 This operating manual is also available in German. Please contact your local representative. Diese Bedienungsanleitung ist auch in Deutsch erhältlich. Bitte kontaktieren Sie Ihren nächstgelegenen FMS Vertreter. © by FMS Force Measuring Systems AG, CH-8154 Oberglatt – All rights reserved.
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Page 2: Safety Instructions
Operating Manual EMGZ473/474 1 Safety Instructions 1.1 Description Conditions a) Danger of health injury or loss of life Danger This symbol refers to high risk for persons to get health injury or loss life. It has to be followed strictly. -
Page 3: Table Of Contents
Wiring Diagram EMGZ474 Wiring of Power Supply and PROFIBUS Data Cable Setting the PROFIBUS Address PROFIBUS Interface Description ............14 GSD File EMGZ473/474 DP Slave Functional Description Initial Parameters Configuration Process Data Calibrating the Measuring Amplifier ........... 18 Simulating Method, Calibration within the PLC... -
Page 4: Definitions
Strain gauge: Electronic component that will change its resistance while its length has changed. Strain gauges are used in the FMS force sensors for acquisition of the feedback value. -
Page 5: System Description
In addition, a PROFIBUS interface is integrated to the electronic unit. The electronic unit can process the signals of two force sensors (sum signal). EMGZ473: The EMGZ473 is built into a compact aluminium housing according to IP67. The cover has an electrical function identical to the PROFIBUS standard plug (connection of the cables and termination). -
Page 6: Block Diagram
PROFIBUS interface. PROFIBUS interface The EMGZ473/474 operates as PROFIBUS DP slave according to EN 50170. All settings and the entire communication is done by the integrated PROFIBUS interface. 4.4 Block Diagram fig. -
Page 7: Quick Installation Guide
(ref. to „9. Calibrating the measuring amplifier“)? • Draw your final wiring diagram according to the wiring diagram (refer to „7.4 Wiring diagram EMGZ473“ / „7.5 Wiring diagram EMGZ474“) • Install and wire all your components (refer to „7. Installation and wiring“) •... -
Page 8: Dimensions
Operating Manual EMGZ473/474 6 Dimensions 6.1 Dimensions EMGZ473 fig. 3 Outline drawing EMGZ473 E473003us 6.2 Dimensions EMGZ474 fig. 4 Outline drawing EMGZ474 E474001us... -
Page 9: Installation And Wiring
7.2 Mounting the Force Sensors Mounting of the force sensors is done referring to the FMS Installation manual which is delivered together with the force sensors. Wiring of the force sensor cables to the terminals is done according to the wiring diagram (fig. 6 and 7). This means all analogue wiring is done. -
Page 10: Setting Elements On The Electronic Unit
Operating Manual EMGZ473/474 7.3 Setting Elements on the Electronic Unit fig. 5: Setting elements on the electronic unit E473010e... -
Page 11: Wiring Diagram Emgz473
Operating Manual EMGZ473/474 7.4 Wiring Diagram EMGZ473 fig. 6: Wiring and Terminal Schematics EMGZ473 E473009e 7.5 Wiring Diagram EMGZ474 fig. 7: Wiring and Terminal Schematics EMGZ474 E474002e... -
Page 12: Wiring Of Power Supply And Profibus Data Cable
Only one cable connected – Termination set If only one cable is connected (Bus in), the connection must be terminated properly. EMGZ473: The two termination jumpers (J10, J11) have to be set (fig. 5). EMGZ474: Termination is done according to the instructions of the plug manufacturer. -
Page 13: Setting The Profibus Address
Operating Manual EMGZ473/474 7.7 Setting the PROFIBUS Address The measuring amplifier requires a unique PROFIBUS address which indicates it definitely in the whole PROFIBUS network. Therefore no other PROFIBUS device in the network may use the same address. The address has to be between 0...125. -
Page 14: Profibus Interface Description
The PROFIBUS DP master has to know which devices are connected to the PROFIBUS network. For this purpose the GSD file is required. The GSD file for the EMGZ473/474 measuring amplifier can be taken from the following internet address: http://www.fms-technology.com/gsd The GSD file can also be supplied on a floppy disk on request. -
Page 15: Configuration
Operating Manual EMGZ473/474 8.4 Configuration The configuration defines how many process data (byte and word) are sent during the cyclic communication from the control system to the measuring amplifier and from the measuring amplifier to the control system. It is normally set to a fixed value for a program with the programming tool of the control system. -
Page 16: Process Data
Operating Manual EMGZ473/474 8.5 Process Data The number of process data specified in the configuration is transmitted cyclically. There are manin reference value, main actual value, control byte and status byte. Control byte (STB) The control byte transmits the required command to the measuring amplifier. (Module 1 only) Master →... - Page 17 An error appeared during acquiring of the measuring value Overload The sensor power source is overload Read Device Type EMGZ473/474: HIW = 2 User Offset read HIW = User Offset read User Offset written HIW = User-Offset written User Offset found...
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Page 18: Simulating Method, Calibration Within The Plc
Operating Manual EMGZ473/474 9 Calibrating the Measuring Amplifier To get correct measuring values, offset and gain have to be determinated while setting into operation. There are several methods for this task: Method Use with Advantage Simulating method Module 1+2 No settings required for the... -
Page 19: Simulating Method, Calibration Using Initial Parameters
Operating Manual EMGZ473/474 9.2 Simulating Method, Calibration using Initial Parameters The following instructions are referring to a setup and calibration on-site. The material tension will be simulated by a weight (fig. 10). Offste and Gain calibration is done in the measuring amplifier using the initial parameter (ref. -
Page 20: Mathematical Method (Module 1 Only)
• Offset adjustment has to be done as described fig. 11: Force vectors in the FMS force measuring under „Simulating bearing C431012e method, calibration using control byte“. -
Page 21: Configuring The Lowpass Filter
Operating Manual EMGZ473/474 9.5 Configuring the Lowpass Filter The measuring amplifier provides a lowpass filter. It is used to eliminate faulty signal variations which may be caused by unbalanced rollers, vibrations of the machine, or equivalent. Signal variations which are faster than the cut-off frequency are then suppressed. -
Page 22: Trouble Shooting
Operating Manual EMGZ473/474 10 Trouble Shooting Error Cause Corrective action Status byte (ZSB) Force sensor wrong Correct sensor cabling Bit 2+1 = OVERFLOW: connected / cabling defect Force sensor defect Replace force sensor The sensor gives a signal too big ( > ±9.92mV) -
Page 23: Technical Data
PROFIBUS Feedback value 10000 at nominal force of force sensor (7.2mV) Limit value monitoring to be developed – ask FMS customer service PROFIBUS protocol PROFIBUS DP slave according to EN 50170 PROFIBUS data transfer rate up to 12Mbaud PROFIBUS address set by DIP switch (0...125) - Page 24 Operating Manual EMGZ473/474 FMS Force Measuring Systems AG FMS Italy FMS USA, Inc. FMS UK Aspstrasse 6 Via Baranzate 67 2155 Stonington Ave. Suite 119 Highfield, Atch Lench Road 8154 Oberglatt (Switzerland) I-20026 Novate Milanese Hoffman Estates, IL 60169 USA Church Lench Tel.
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