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Operating manual EMGZ308 
 

 

6 Installation and wiring 

Caution

 

Proper function of the Tension Measuring Amplifier is only guaranteed with the 
recommended application of the components. In case of other arrangement, heavy 
malfunction can be the result. Therefore, the installation instructions on the following 
pages must be followed strictly. 

Caution

 

Local installation regulations are to preserve safety of electric equipment. They are not 
taken into consideration by this operating manual. However, they have to be followed 
strictly. 

Caution

 

Improper handling may damage the fragile electronic equipment! Don’t touch the 
electronic unit! Don’t use rough tools as screwdrivers or pliers! Touch earthed metal part 
to discharge static electricity before touching the electronic unit! 

 

6.1  Mounting and wiring of the electronic unit 

The aluminium housing of the measuring amplifier may be mounted to any place in the 
machine, but usefully a position close to the force sensors is chosen. Wiring to the 
terminals is done according to wiring diagram (fig. 5). 
 

 

fig. 4: Screw terminal arrangement on the electronic pc board 

E308009e

 

Содержание EMGZ308

Страница 1: ...st This operation manual is also available in German Please contact your local representative Diese Bedienungsanleitung ist auch in Deutsch erhältlich Bitte kontaktieren Sie die Vertretung im zuständigen Land by FMS Force Measuring Systems AG CH 8154 Oberglatt All rights reserved ...

Страница 2: ...plifier is only guaranteed with the recommended application of the components In case of other arrangement heavy malfunction can be the result Therefore the installation instructions on the following pages must be followed strictly Local installation regulations are to preserve safety of electric equipment They are not taken into consideration by this operating manual However they have to be follo...

Страница 3: ...fier EMGZ308 5 4 4 Block diagram 6 5 Dimensions 7 6 Installation and wiring 8 6 1 Mounting and wiring of the electronic unit 8 6 2 Mounting the force sensors 9 6 3 Wiring 9 7 Setting into operation 10 7 1 View of the setting elements 10 7 2 Configuring gain and offset 10 7 3 Configuring the output 11 7 4 Configuring the lowpass filter 12 7 5 Calibrating the measuring amplifier 13 7 6 Scaling the i...

Страница 4: ...System components The EMGZ308 consists of the following components refer also to fig 1 Force sensors For mechanical electrical conversion of the tension force Force measuring bearing load cell Force measuring roller Force measuring journal Force measuring bearing block Measuring amplifier EMGZ308 Hybrid module for supplying the force sensors and amplification of the mV signal One single electronic...

Страница 5: ...e force sensors are supplied from the EMGZ308 by a very accurate power supply 4 3 Measuring amplifier EMGZ308 The EMGZ308 is a single or double channel analog Tension Measuring Amplifier based on a hybrid circuit per channel It is delivered in a robust aluminium housing All connections are led through glands to screw terminals There can be connected 1 or 2 force sensors of 350Ω to each channel The...

Страница 6: ...aximum thermal stability and vibration proof conditions are needed The signal is pre amplified with a fixed value and has to be evaluated digitally for ex by a PLC so that offset and gain can be calculated 4 4 Block diagram fig 2 The block diagram shows the single channel version E308002e ...

Страница 7: ...Operating manual EMGZ308 7 5 Dimensions 8 x M16 x 1 5 EMGZ308 SERIES CHANNEL 1 CHANNEL 2 fig 3 E308013e ...

Страница 8: ...eration by this operating manual However they have to be followed strictly Caution Improper handling may damage the fragile electronic equipment Don t touch the electronic unit Don t use rough tools as screwdrivers or pliers Touch earthed metal part to discharge static electricity before touching the electronic unit 6 1 Mounting and wiring of the electronic unit The aluminium housing of the measur...

Страница 9: ...e force sensor side the shield should stay open 6 3 Wiring fig 5 Wiring diagram E308007e There can be connected 1 or 2 force sensors per channel Using 2 force sensors the connections will be wired parallel The output signal of the measuring amplifier then will correspond to the average value of the 2 sensors The connection between force sensors and measuring amplifier has to be done using 2x2x0 75...

Страница 10: ...red by jumpers The settings can be made individually for each channel Gain and offset with infinite setting If gain and offset are adjusted with the trimmers the jumpers have to be set according to fig 7 Gain and offset then may be adjusted using the trimmers refer to 7 5 Calibrating the measuring amplifier fig 7 Jumper setting for infinite gain and offset adjustment E308010a ...

Страница 11: ...e nominal force of the sensor is applied 7 3 Configuring the output Each channel provides a voltage output 10V and a current output 0 20mA or 4 20mA which are active simultaneously The signal of the current output is configured as follows Current output 0 20mA The jumpers have to be set according to fig 9 This is the standard FMS factory setting Current output 4 20mA The jumpers have to be set acc...

Страница 12: ... lower the cut off frequency the more sluggish the signal will be The configuration is made by soldering a non polarized capacitor to the respective soldering points refer to fig 6 The capacitor will be determined referring to the following formula or table Cut off frequency Hz Capacitor µF 1 10 C 10 F 2 5 5 2 10 1 C Capacity µF 20 0 5 F Cut off frequency Hz 50 0 2 100 0 1 200 0 05 500 0 02 1000 0...

Страница 13: ...nal and Signal Insert material or a rope loosely to the machine Adjust the offset trimmer until the output value is zero Load material or rope with a defined weight fig 11 Adjust the gain trimmer until the output value shows the needed value i e 10V corresponding to 500N Notice If the measuring amplifier is operated with fixed gain and offset signal conditioning has to be done with additional equi...

Страница 14: ...requency refer to 7 4 Configuring the lowpass filter Ground terminal of the output isn t 0V Connect Gnd terminal of the output with earth terminal PE Adjusting of the trimmers causes no result Jumpers are set to fixed gain fixed offset Set jumpers to variable gain variable offset Display shows inaccurate value Display scaling not correct Proceed display scaling refer to 7 6 Scaling the integrated ...

Страница 15: ...0mV variable 9mV Temperature drift offset fixed 20ppm K 11ppm F variable ca 50ppm K 28ppm F Linearity error 0 1 Tension output 10V min 1kΩ Current output 0 4 20mA max 500Ω Lowpass cut off frequency adjustable ca 1 1000Hz Power supply 24VDC or 100 240VAC max 0 2A see name plate Power consumption max 2 5W Temperature range 10 60 C 14 140 F Protection class IP54 ...

Страница 16: ...1 44 850 60 06 info fms technology com www fms technology com FMS USA Inc 925 East Rand Road Suite 207 Arlington Heights IL 60004 USA Tel 847 392 7872 Fax 847 392 7873 fmsusa fms technology com FMS UK Highfield Atch Lench Road Church Lench Evesham WR11 4UG Great Britain Tel 01386 871023 Fax 01386 871021 fmsuk fms technology com ...

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