Table of Contents
Advertisement
Quick Links
Operating Manual EMGZ621A
Digital microprocessor controlled
Double Channel Tension Measuring Amplifier
Version 1.12 02/2007 ff
Firmware Version: ab 2.01
GSD Version ab 1.00
Hardware Rev. D
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.
Advertisement
Table of Contents
Related Manuals for FMS EMGZ621A
Summary of Contents for FMS EMGZ621A
- Page 1 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.
-
Page 2: Safety Instructions
Operating Manual EMGZ621A 1 Safety Instructions 1.1 Description conditions High danger of health Risk of damage Notice for injury or loss of life to machines proper function Note Caution Danger This symbol refers to an This symbol refers to risk of... -
Page 3: Table Of Contents
Calibrating the Measuring Amplifier Additional Settings Parametrization..................18 Schematic Diagram of Parametrization List of the system parameters List of the parameters EMGZ621A Description of the system parameters Description of the Parameters EMGZ621A Service Mode Serial Interface (RS232) ................. 26 PROFIBUS Interface Description ............27 11.1... -
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. Subprint: Electronic extension module which can be plugged to the main board of the electronic unit if required. -
Page 5: System Description
E621A001e 4.1 Functional Description The EMGZ621A 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. The two force sensors of the measuring point measure the tension force in the material and transmit the measuring values as mV signals to the electronic unit EMGZ621A. -
Page 6: Electronic Units Emgz621A
Operating Manual EMGZ621A 4.3 Electronic Units EMGZ621A Common The electronic unit is mounted to a robust aluminium housing. It contains a microprocessor to handle all calculations and communications, the highly accurate sensor power supply and the signal amplifiers for the measuring values of one measuring point. The electronic unit has no trimmers and only few jumpers to keep most accurate long-time and temperature stability. -
Page 7: Quick Installation Guide
Operating Manual EMGZ621A fig. 2: Block diagram of the electronic unit EMGZ621A E621A010e 5 Quick Installation Guide • Check all your requirements such as: – configuration of the analogue inputs (power supply, 4 wire or 6 wire circuit)? – configuration of the analogue outputs (signal level)? –... -
Page 8: Dimensions
Operating Manual EMGZ621A 6 Dimensions fig. 3: Dimensions E611002e... -
Page 9: Installation And Wiring
Operating Manual EMGZ621A 7 Installation and Wiring Caution Proper function of the electronic unit 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. - Page 10 Operating Manual EMGZ621A Caution The processor board is mounted to the housing cover. Improper handling may damage the fragile electronic equipment! Don’t use rough tools such as screwdrivers or pliers! Touch processor board as little as possible! Touch earthed metal part to discharge static electricity before open the housing! fig.
-
Page 11: Wiring Diagram
Operating Manual EMGZ621A 7.2 Wiring Diagram fig. 6: Wiring diagram EMGZ621A E621A0011e... -
Page 12: Mounting The Force Sensors
Operating Manual EMGZ621A 7.3 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. The connection between the force sensors and the electronic unit is done using 2x2x0.75mm [AWG 18] shielded twisted pair cable. -
Page 13: Operating
Operating Manual EMGZ621A 8 Operating 8.1 View of the Operating Panel fig. 7: Operating panel EMGZ621A E621A007 fig. 8: Main operating menu EMGZ621A E621A005e... -
Page 14: Configuring The Electronic Unit
Ref. to nameplate of the force sensor Unit of sensor Ref. to nameplate of the force sensor Sensitivity FMS force sensors = 1.8mV/V (default) Scale output 1...4 Which tension feedback refers to 10V resp. 20mA? Config. output 0-10V and 0...20mA (default) or 0-10V and 4...20mA... -
Page 15: Calibrating The Measuring Amplifier
• Insert material or a rope loosely to the machine. • Press MODE key. Search and select the module Spec.F EMGZ621A 1 and the special function Find offset A with the ↑ ↓ ↵ keys (fig. 8). • Find offset for channel A by pressing the ↵ key for 3 seconds (fig. 8). The electronic unit calculates automatically the new offset value for channel A. - Page 16 • The Gain value will be calculated by the following formula and then inputted in the parameters Gain A / Gain B (refer to „9.5 Description of the parameters EMGZ621A“). fig. 10: Force vectors in the FMS force measuring bearing...
-
Page 17: Additional Settings
The cut off frequency is set in the system parameter Lowpass display or in the parameter EMGZ621A Lowpass output (ref. to „9. Parametrization“). Signal variations which are faster than the cut off frequency are then suppressed. The lower the cut off frequency, the more sluggish the display value resp. -
Page 18: Parametrization
11: Parametrization EMGZ621A E621A006e The parameters are split into the modules system parameters and parameters EMGZ621A 1. The parameter changing mode is activated by pressing the PARA ↵ key for 3 seconds. The required module is then searched with the ↑ ↓ keys and selected with the PARA ↵ key (fig. 11). Each module has its own parameter set. -
Page 19: List Of The System Parameters
English, French, Italian, German Measuring System Metric, US standard Metric Lowpass display [Hz] 10.0 Identifier Baud rate 2400, 4800, 9600, 19200 9600 9.3 List of the parameters EMGZ621A Parameter Unit Default Selected Offset A [Digit] –8000 8000 Gain A 0.100 9.000... -
Page 20: Description Of The System Parameters
Operating Manual EMGZ621A 9.4 Description of the system parameters The parameter changing mode is activated by pressing the PARA ↵ key for 3 seconds. By pressing the PARA ↵ key again, the system parameters are selected (ref. also to fig. 11). -
Page 21: Description Of The Parameters Emgz621A
The parameter changing mode is activated by pressing the PARA ↵ key for 3 seconds. The module Params EMGZ621A 1 is then searched with the ↑ ↓ keys and selected with the PARA ↵ key (ref. also to fig. 11). - Page 22 Sensitivity Use: This parameter stores the sensitivity of the force sensors, that means how much signal per volt excitation the sensor will give when loaded with nominal force. Standard for FMS force sensors is 1.8mV/V. Range: 0.1 to Default: Increment:...
- Page 23 Operating Manual EMGZ621A Max. limit Use: The digital output and the LED „Max. Limit A+B“ will be activated if the tension feedback passes over the threshold value stored here. All other function is identical with Min. limit. |A–B| > limit Use: The digital output and the LED „|A–B| >...
- Page 24 Operating Manual EMGZ621A Lowpass output 2 (A+B) Use: Identical with Lowpass output 1 but the filter acts to the output 2 (A+B). Scale output 2 (A+B) Use: Identical with Scale output 1 but the parameter acts to the output 2 (A+B).
-
Page 25: Service Mode
Operating Manual EMGZ621A 9.6 Service Mode fig. 13 E614012e The service mode contains internally used values. These need usually no modification. However they could be helpful while trouble shooting. Each function module has its own set of service parameters. Note... -
Page 26: Serial Interface (Rs232)
Operating Manual EMGZ621A 10 Serial Interface (RS232) (Optional) -
Page 27: Profibus Interface Description
Operating Manual EMGZ621A 11 PROFIBUS Interface Description 11.1 Wiring of the PROFIBUS Data Cable Wiring of the PROFIBUS cables The standardized PROFIBUS cable type A (STP 2x0.34 ) [AWG] has to be used for the PROFIBUS data cable. The cables are bared referring to fig. 6 and connected to the terminals according to the wiring diagramm. -
Page 28: Setting The Profibus Address
Operating Manual EMGZ621A 11.2 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 2...125. -
Page 29: Profibus Interface Description
The GSD file can also be supplied on a floppy disk on request. In this case please contact FMS customer service. Read in the GSD file into the PROFIBUS DP Master How to read in the GSD file into the control system (DP Master) is depending on the used control system. -
Page 30: Configuration
Operating Manual EMGZ621A 12.4 Configuration The configuration defines how many process data (byte and word) are sent during the cyclic communication from the control system to the tension controller and from the tension controller to the control system. To ensure maximum flexibility using the measuring amplifier, there are different modules supplied. -
Page 31: Interface Can-Bus
Operating Manual EMGZ621A 13 Interface CAN-Bus (Option) 14 Interface DeviceNet (Option) -
Page 32: Technical Reference
Operating Manual EMGZ621A 15 Technical Reference 15.1 Additional Setting Elements fig. 14 View of main board K600028e Element Function D111 Status LED power supply: VCC ok D114 Status LED power supply: +15VDC ok D115 Status LED power supply: –15VDC ok D408 Status LED dig. -
Page 33: Dip-Switch For The Analogue Inputs / Outputs
Operating Manual EMGZ621A 15.2 Dip-switch for the Analogue Inputs / Outputs 15.2.1 Main Board fig. 16 View of main board K600028e Setting of the Dip-switch Sensor excitation Sensor signal 4/6-wire circuit Dip- 5VDC 10VDC ±9mV 0...10V 4-wire 6-wire switch factory set. - Page 34 Operating Manual EMGZ621A 15.2.2 Subprint (Rev. D) fig. 17: The Dip-switch and solder bridges E600014e Setting of the Dip-switch Sensor exitation Sensor signal 4/6-wire circuit Dip-switch 5VDC 10VDC ±9mV 0...10V 4-wire 6-wire factory set. factory set. factory set.
- Page 35 Operating Manual EMGZ621A Note The Dip-switch, jumpers and solder bridges are factory set and need no customization. Caution Wrong setting of the Dip-switches and solder bridges may cause malfunction of the electronic unit or the total system! Setting of the solder bridges, Dip-swtitch and jumpers must be...
- Page 36 Operating Manual EMGZ621A 15.2.3 Subprint (Rev. C) Revision B J205 J203 J101 J210 J211 J209 J212 J208 J201 J100 fig. 18: The Jumpers and solder bridges E600015e Channel 2...4 Analogue output Analogue output (subprint) ±10V 0...10V J100 Setting the sensor excitation (solder bridges) Channel 2...4...
-
Page 37: Technical Data
Operating Manual EMGZ621A 15.3 Technical Data Number of measuring points Connection of force sensors 2 separately wired force sensors of 350Ω for each channel Excitation of force sensors 5VDC (default) or 10VDC (with automatic current control) Input signal voltage 0...9mV (max. 12.5mV) or 0...18mV (max. 25mV) -
Page 38: Trouble Shooting
Operating Manual EMGZ621A 16 Trouble Shooting If the electronic unit detects an error, the LED and the digital output Error is activated. In addition, the error state can be read by the interface. Error Cause Corrective action Display shows A function can’t be performed... - Page 39 Operating Manual EMGZ621A Error Cause Corrective action Limit switches of channel Limit values wrong Set parameter Min. limit / Max. limit to parametrized an appropriate value n do not work Dig. outputs do not work Wiring error Check wiring of the dig. outputs (open collector, ref.
- Page 40 Operating Manual EMGZ621A 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. +41 44 852 80 80 Tel.
Need help?
Do you have a question about the EMGZ621A and is the answer not in the manual?
Questions and answers