Table of Contents
Advertisement
Quick Links
Operating Manual EMGZ421
Digital microprocessor controlled
Double Channel Tension Measuring Amplifier
Version 2.05 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.
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for FMS EMGZ421
Summary of Contents for FMS EMGZ421
- 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 EMGZ421 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 (EMGZ421.E) Installation and wiring................9 Mounting and wiring of the measuring amplifier Mounting the force sensors Wiring diagram: Variant for insert card support block (EMGZ421) Wiring diagram: Variant with separate housing (EMGZ421.E) Operation ....................12 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
1: Basic structure of the EMGZ421 tension measuring amplifier E421001e 4.1 Functional description The EMGZ421 is a double channel strain gauge amplifier for a single measuring point. The material tension can be measured on both sides of the measuring roller independently. - Page 6 The strain gauge amplifier section written above is integrated twice to provide independent evaluation of each force sensor. 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 EMGZ421 E421002e...
-
Page 7: Quick Installation Guide
Operating Manual EMGZ421 5 Quick installation guide • Check all your requirements such as: – configuration of the analogue outputs (signal level)? – gain switching 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 EMGZ421 6 Dimensions 6.1 Dimensions: Variant for insert card support block (EMGZ421) 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 (Emgz421)
Operating Manual EMGZ421 7.3 Wiring diagram: Variant for insert card support block (EMGZ421) fig. 5: Wiring diagram: Variant for insert card suppor block E421005e 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 EMGZ421 fig. 6: Wiring diagram: Variant with separate housing E421010e fig. 7: Screw terminal arrangement on terminal board E411001e...
-
Page 12: Operation
Operating Manual EMGZ421 8 Operation 8.1 View of the operating panel fig. 8: Operating panel: Variant for insert card support block (EMGZ421) E421006e fig. 9: Operating panel: Variant with separate housing (EMGZ421.E) E421007e... -
Page 13: Calibrating The Measuring Amplifier
Operating Manual EMGZ421 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 sensor A • Nominal force sensor B •... - Page 14 • The Gain value will be calculated by the following formula and then inputted in the parameters gain channel A / gain channel B (refer to „10. Parametrization“). fig. 11: Force vectors in the FMS force measuring bearing C431012e GainFeedba GainFeedba δ...
-
Page 15: Additional Settings
Operating Manual EMGZ421 8.3 Additional settings Setting of the lowpass filters The measuring amplifier provides 5 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 16: Serial Interface (Rs232)
Operating Manual EMGZ421 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 17: Read Parameter
Operating Manual EMGZ421 9.3 Read parameter command answer purpose RP01<CR> XXXXX<CR> Offset channel A RP02<CR> X.XXX<CR> Gain channel A RP03<CR> XXXXX<CR> Offset channel B RP04<CR> X.XXX<CR> Gain channel B RP05<CR> X.XXX<CR> Gain1 channel A RP06<CR> X.XXX<CR> Gain1 channel B RP07<CR>... -
Page 18: Write Parameter
Operating Manual EMGZ421 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 WP03XXXXX<CR> PACC<CR> / FAIL<CR> Offset channel B WP04X.XXX<CR> PACC<CR> / FAIL<CR> Gain channel B WP05X.XXX<CR> PACC<CR> / FAIL<CR>... -
Page 19: Parametrization
Operating Manual EMGZ421 10 Parametrization 10.1 Parameter list Parameter Unit Default Selected Find offset A (Parameter function) Calibration A (Parameter function) _______ Find offset B (Parameter function) Calibration B (Parameter function) _______ Cal. gain 1 A (Parameter function) _______ Cal. gain 1 B... -
Page 20: Schematic Diagram Of Parametrization
Operating Manual EMGZ421 10.2 Schematic diagram of parametrization fig. 13 State Diagram EMGZ421 E421009e... -
Page 21: Description Of The Parameters
Operating Manual EMGZ421 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 22 Operating Manual EMGZ421 Calibration B In this parameter, using the ↑ ↓ keys you can input the force value Use: referring to half of the calibration load you applied to the sensor (force feedback value). The processor then calculates the actual gain value and stores it under parameter Gain channel B.
- Page 23 Operating Manual EMGZ421 Offset channel B Use: This parameter stores the value determined with Find offset B in [Digit]. It is not necessary to note this parameter, because a new offset adjustment is done very easy; also when changing the whole electronic unit.
- Page 24 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 25 Operating Manual EMGZ421 Lowpass display Use: The measuring amplifier provides a lowpass filter to prevent noise which is added to the integrated display. This parameter stores the cut-off frequency. The lower the cut-off frequency, the more sluggish the output signal will be. Due to this filter, the value shown in the integrated display will be much more stable in the case of high fluctuations of the force value.
- Page 26 Operating Manual EMGZ421 Scale output 1 (A–B) Use: At default setting of 0.50, the output 1 (±10V) provides the nominal signal level (10V) when the difference A–B is reaching the nominal force of the sensors. If the scale value stored here is reduced, the nominal output signal is reduced too;...
- Page 27 Operating Manual EMGZ421 Identifier Use: This parameter is to identificate the device when using a CAN-Bus interface. For future applications. Range: Default: Increment: Unit: Baud rate RS232 Use: Setting of the transmission rate of the RS 232 interface. Range: 300, 600, 1200, 2400, 4800, 9600 baud...
-
Page 28: Trouble Shooting
Operating Manual EMGZ421 11 Trouble shooting Error Cause Corrective action Force sensor A is wrong Exchange wires on terminals z6 / z8 (resp. 2 / „Err1“ is displayed: connected A/D-converter receives values < -9.7mV Parting of the cable Replace connection cable between force... - Page 29 Operating Manual EMGZ421 If the measuring amplifier recognizes an error, the digital output „Error“ (terminal b16 resp. 30) is activated. In addition, the error state can be requested using the interface.
-
Page 30: Technical Data Emgz421
Digital input 4 (Find offset B) 24VDC galvanic separated Interface RS232 standard Interface RS485 galvanic separated Option Interface CAN-Bus Option Power supply 24VDC (18...36VDC) 0.15A (EMGZ421.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 31 Operating Manual EMGZ421...
- Page 32 Operating Manual EMGZ421 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.
Need help?
Do you have a question about the EMGZ421 and is the answer not in the manual?
Questions and answers