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FMS EMGZ411 Operating Manual

Digital microprocessor controlled tension measuring amplifier
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Operating Manual EMGZ411
Digital microprocessor controlled
Tension Measuring Amplifier
Version 2.04 05/04 sd
This operation manual is also available in german, french and italian.
Please contact your local representative.
Diese Bedienungsanleitung ist auch in deutsch, französisch und italienisch erhältlich.
Bitte kontaktieren Sie die Vertretung im zuständigen Land.
Ce mode d'emploi est également disponible en français, en italien et en allemand.
Veuillez contacter la représentation locale.
Queste manuale d'installazione è disponibile anche in lingua italiano, francese e tedesco.
Vogliate cortesemente contattare la locale rappresentanza.
© by FMS Force Measuring Systems AG, CH-8154 Oberglatt – All rights reserved.

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Summary of Contents for FMS EMGZ411

  • Page 1 Ce mode d'emploi est également disponible en français, en italien et en allemand. Veuillez contacter la représentation locale. Queste manuale d’installazione è disponibile anche in lingua italiano, francese e tedesco. Vogliate cortesemente contattare la locale rappresentanza. © by FMS Force Measuring Systems AG, CH-8154 Oberglatt – All rights reserved.

  • Page 2: Safety Instructions

    Operating Manual EMGZ411 1 Safety Instructions 1.1 Description conditions a) High 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

    Dimensions: Variant with separate housing (EMGZ411.E) Installation and wiring................9 Mounting and wiring of the measuring amplifier Mounting the force sensors Wiring diagram: Variant for insert card support block (EMGZ411) Mounting the distance sensor Operation ....................13 View of the operating panel...

  • Page 4: Definitions

    (0...10V). 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

    The force sensors measure the tension force in the material and transmit the measuring value as a mV signal to the electronic unit EMGZ411. The electronic unit amplifies the mV signal depending on configuration. The resulting feedback value is shown in the display in [N].
  • Page 6 Operating Manual EMGZ411 Interface As standard, the electronic unit supports an RS232 interface. As an option, there is an additional board with CAN-Bus interface available. fig. 2: Block diagram of the electronic unit EMGZ411 E411003e...

  • Page 7: Quick Installation Guide

    Operating Manual EMGZ411 5 Quick installation guide • Check all your requirements such as: – configuration of the analogue outputs (signal level)? – gain switching required? – correction input required? – linking by serial interface etc.? • Draw your final wiring diagram according to the wiring diagrams (refer to „7.3 Wiring diagram variant for insert card support block“...

  • Page 8: Dimensions

    Operating Manual EMGZ411 6 Dimensions 6.1 Dimensions: Variant for insert card support block (EMGZ411) fig. 3: Dimensions of the variant using insert card support block (EMGZ400 series). The support block EMGZ555959 has to be ordered separately. E411004us If the electronic unit should be mounted into a 19“ rack, a multipoint plug is used instead of the support block.

  • Page 9: Installation And Wiring

    „7.4 Wiring diagram: Variant with separate housing“ (fig. 6 and 7). 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 to the terminals of the electronic unit is done according to wiring diagram (fig. 5 resp.

  • Page 10: Wiring Diagram: Variant For Insert Card Support Block (Emgz411)

    Operating Manual EMGZ411 7.3 Wiring diagram: Variant for insert card support block (EMGZ411) fig. 5: Wiring diagram: Variant for insert card suppor block E411006e Caution Bad earth connection may cause electric shock to persons, malfunction of the total system or damage of the measuring amplifier! It is vital to ensure that proper earth connection is done.
  • Page 11 Operating Manual EMGZ411 fig. 6: Wiring diagram: Variant with separate housing E411014e fig. 7: Screw terminal arrangement on terminal board E411001e...

  • Page 12: Mounting The Distance Sensor

    (refer to fig. 8). Optical distance sensor CMGZ581934 FMS recommends to use the optical distance sensor CMGZ581934 because its accuracy and signal output is adapted to the FMS tension measuring amplifiers and tension controllers. fig. 8: Mounting of the distance sensor CMGZ581934 E411012e The distance sensor operates with the 3-beam-correction principle.

  • Page 13: Operation

    Operating Manual EMGZ411 8 Operation 8.1 View of the operating panel fig. 9: Operating panel: Variant for insert card support block (EMGZ411) E411007e fig. 10: Operating panel: Variant with separate housing (EMGZ411.E) E411008e...

  • Page 14: Calibrating The Measuring Amplifier

    Operating Manual EMGZ411 8.2 Calibrating the measuring amplifier Parametrizing the measuring amplifier The following parameters have to be set resp. to be checked before the first calibration is done (ref. to „10. Parametrisation“): • Nominal force • Unit of force •...
  • Page 15 • Offset adjustment has to be done as described under „Simulating method“. • The Gain value will be calculated by the following formula and then inputted in the parameter gain channel A (refer to „10. Parametrization“). fig. 12: Force vectors in the FMS force measuring bearing C431012e GainFeedba δ...

  • Page 16: Additional Settings

    Operating Manual EMGZ411 8.3 Additional settings Setting of the lowpass filters The measuring amplifier provides 3 lowpass filters independently adjustable from each other. They are used to prevent noise which is added to the signals. Signal variations which are faster than the cut-off frequency are then suppressed. The lower the cut-off frequency, the more sluggish the output signal will be.

  • Page 17: Setup Of The Correction Input

    The measuring amplifier is able to do that correction. You can select between cosine correction and linear correction. FMS recommends using the cosine correction because it calculates the effective correction at any time. If the simulating setup of the cosine correction is not possible, the linear correction may be used.
  • Page 18 Operating Manual EMGZ411 Variation of the gain factor in relation to the wrap angle The gain factor is adjusted by a correction factor k depending on the wrap angle γ to provide the correct feedback values in the display and at the outputs. If the measuring amplifier is calibrated at γ...
  • Page 19 Operating Manual EMGZ411 Linear correction If the three points k1, km, k2 can’t be reached during simulating setup, a linear correction can be calculated. A straight line is centered to the effective correction curve by setting the parameters Correction at 0V and Correction at 10V to appropriate values (fig. 14).

  • Page 20: Serial Interface (Rs232)

    Operating Manual EMGZ411 9 Serial interface (RS232) The serial interface is operated for example by a personal computer as a kind of „question and answer“ game: The PC sends a question resp. a command; the measuring amplifier will send an answer back. If the answer is missing, the measuring amplifier or the connection cable may fail.

  • Page 21: Read Parameter

    Operating Manual EMGZ411 9.3 Read parameter command answer purpose RP01<CR> XXXXX<CR> Offset channel A RP02<CR> X.XXX<CR> Gain channel A RP05<CR> X.XXX<CR> Gain1 channel A RP06<CR> X.XXX<CR> Gain2 channel A RP07<CR> XXXX<CR> Nominal force RP09<CR> X<CR> Unit of force RP10<CR> X.X<CR>...

  • Page 22: Write Parameter

    Operating Manual EMGZ411 9.4 Write parameter command answer purpose WP01XXXXX<CR> PACC<CR> / FAIL<CR> Offset channel A WP02X.XXX<CR> PACC<CR> / FAIL<CR> Gain channel A WP05X.XXX<CR> PACC<CR> / FAIL<CR> Gain1 channel A WP06X.XXX<CR> PACC<CR> / FAIL<CR> Gain2 channel A WP07XXXX<CR> PACC<CR> / FAIL<CR>...

  • Page 23: Parametrization

    Operating Manual EMGZ411 10 Parametrization 10.1 Parameter list Parameter Unit Default Selected Find offset A (Parameter function) Calibration A (Parameter function) _______ Cal. gain 1 A (Parameter function) _______ Cal. gain 2 A (Parameter function) _______ Cal. gain cos 1 (Parameter function) Cal.

  • Page 24: Schematic Diagram Of Parametrization

    Operating Manual EMGZ411 10.2 Schematic diagram of parametrization fig. 16 E411010e...

  • Page 25: Description Of The Parameters

    Operating Manual EMGZ411 10.3 Description of the parameters The parameter changing mode will be activated by pressing the ↵ key for 3 seconds. Generally, the parameters are settable using the keys as follows: ↵ choose ↑ ↓ switch the selections or increase / decrease numeric values ←...
  • Page 26 Operating Manual EMGZ411 Calibration gain cos 1 Use: Only used if Parameter Input correction is set to Cosine. In this parameter, using the ↑ ↓ keys you can input the force value referring to the calibration load you applied to the sensor (force feedback value).
  • Page 27 Use: To get the correct force value, the electronic unit has to know the sensitivity of the force sensors, that means how much signal the sensor will answer by nominal force. Standard for FMS force sensors is 1.8mV/V. Range: Default:...
  • Page 28 Operating Manual EMGZ411 Minimum limit value Use: The digital output „Limit value min.“ will be activated if the threshold value stored in this parameter is passed under. If the parameter contains a zero value, limit switch monitoring is inactive. Range:...
  • Page 29 Operating Manual EMGZ411 Scale output 1 Use: At default setting of 1.00, the output 1 (±10V / 0...10V / 0...20mA / 4...20mA) provides the nominal signal level (10V resp. 20mA) when reaching the nominal force value. If the scale value stored here is reduced, the nominal output signal is reduced too;...
  • Page 30 Operating Manual EMGZ411 Correction at 0V Use: This parameter is used if parameter Input correction is set to Linear. The correction factor stored here is used if the correction input (terminals d6 / d8 resp. 7 / 8) shows 0V. With this value the linear correction is calculated during operation.
  • Page 31 Operating Manual EMGZ411 Baud rate RS232 Use: Setting of the transmission rate of the RS 232 interface. Range: 300, 600, 1200, 2400, 4800, 9600 baud Default: 9600 7 or 8 data bit Use: Setting of the number of data bits of the RS 232 interface.

  • Page 32: Trouble Shooting

    Operating Manual EMGZ411 11 Trouble shooting Error Cause Corrective action „Err1“ is displayed: Force sensors are wrong Exchange wires on terminals z6 / z8 (resp. 2 / 3) A/D-converter receives connected values < -9.7mV continuously Parting of the cable Replace connection cable between force sensor and measuring amplifier „Err2“...

  • Page 33: Technical Data Emgz411

    Digital input 4 (not connected) 24VDC galvanic separated Interface RS232 standard Interface RS485 galvanic separated Option Interface CAN-Bus Option Power supply 24VDC (18...36VDC) 0.15A (EMGZ411.E: 230VAC, 110VAC or 24VDC) Main connector DIN41612 type F b+d+z Temperature range 0...50°C [32...122°F] Weight 0.22kg [.5 lbs]...
  • Page 34 Operating Manual EMGZ411...
  • Page 35 Operating Manual EMGZ411...
  • Page 36 Operating Manual EMGZ411 FMS Force Measuring Systems AG FMS USA, Inc. FMS (UK) Aspstrasse 6 925 East Rand Road Suite 207 Highfield, Atch Lench Road 8154 Oberglatt (Switzerland) Arlington Heights, IL 60004 (USA) Church Lench Tel. 0041 44 852 80 80 Tel.

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