FMS EMGZ309 User manual

Operating Manual
EMGZ309
Digital Microprocessor Controlled Tension Amplifier
Version 2.12 08/2017 NS
Firmware Version V2.10
Diese Bedienungsanleitung ist auch in Deutsch erhältlich.
Bitte kontaktieren Sie Ihren nächstgelegen FMS Vertreter.
© by FMS Force Measuring Systems AG, CH-8154 Oberglatt – All rights reserved.

Operation Manual EMGZ309
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Table of contents
1 Safety Instructions ..................................................................................... 3
1.1 Description conditions 3
1.2 List of safety instructions 3
2 System Description ................................................................................... 4
2.1 Functional description 4
2.2 Block Diagram 4
3 Quick Installation Guide ............................................................................ 5
3.1 Preparations for Set-up 5
3.2 Installation Procedure 5
3.3 Installation and wiring 5
3.4 Mounting the Force Sensors 6
3.5 Wiring the Amplifier 6
4 Configuring the Amplifier ......................................................................... 8
4.1 Power up the EMGZ 309 8
4.2 Operating Panel 8
4.3 Change the Measuring Units 9
4.4 Change the Device Mode 9
4.5 Offset Compensation 9
4.6 Offset Compensation over the Operating Panel 10
4.7 Calibration 10
4.8 Calibration over the Operating Panel 11
4.9 Analytic Calibration Method) 12
5 Operation .................................................................................................. 14
5.1 Operating the EMGZ309 over the Operating Panel 14
5.2 Display Value Selection State 15
5.3 Displaying of Overload, Over and Underflow 15
6 Parameterization over the Operating Panel ......................................... 16
6.1 Reset to Default Parameter Set 18
6.2 Parameter List 19
6.3 Description of Parameters 20
7 Parameter Setting via a PC .................................................................... 25
7.1 Parameterization in an Ethernet Network via Web Browser 26
7.2 Offset Compensation via the Web Browser 30
7.3 Calibration via the Web Browser 30
7.4 Connecting the EMGZ309 Amplifier with a PC (Peer-to-Peer) 32
8 Dimensions .............................................................................................. 35
9 Technical Specification ........................................................................... 37

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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 of life. It has
to be followed strictly.
b) Risk of damage of machines
Caution
This symbol refers to informations, that, if ignored, could cause heavy mecanical
damage. This warning has to be followed absolutely.
c) Note for proper function
Note
This symbol refers to an important information about proper use. If not followed,
malfunction can be the result.
1.2 List of safety instructions
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.
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.
Bad earth connection may cause electric shock to persons, malfunction of the
total system or damage of the electronic unit! It is vital to ensure that proper
earth connection is done.
Improper handling of the electronic boards may cause damage to the fragile
equipment! Don’t use rough tools such as screwdrivers or pliers! Operators
handling the electronic boards must wear a well earthed bracelet in order to
discharge static electricity.

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2 System Description
Fig. 1: System Configuration EMGZ309 Tension Measuring Amplifier E309012e
2.1 Functional description
The digital tension measuring amplifiers EMGZ309 are suitable for tension
measurement with all FMS force sensors. This versatile product comes as a plug &
play unit and is very easy to setup through the operating panel. Alternatively, more
advanced users can access all the internal parameters through a Web Browser
and set up the device over a PC. The amplifier is then either connected to a
network (e.i. Ethernet) or via a peer-to-peer configuration to a laptop or local PC. A
wealth of options allows the optimization of the amplifier to almost any
application.
2.2 Block Diagram
Fig. 2: Block diagram EMGZ309 Tension Measuring Amplifier E309011e

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3 Quick Installation Guide
In a Plug & Play configuration the set-up of the EMGZ309 and force sensor is
limited to only the offset compensation and the calibration.
3.1 Preparations for Set-up
1. Read the Operation Manual of your force measuring sensors
2. Check your requirements such as:
– Desired output configuration 0…10V or 0/4… 20mA
– Display unit of nominal force
3. Draw the wiring diagram for your configuration (ref. to 3.5 “Wiring the
Amplifier“)
4. If required, determine special parameters (ref. to 6“Parameterization over
Operating Panel”)
3.2 Installation Procedure
1. Mount your force maesuring sensors to the machine frame (ref. to paragraph
3.4)
2. Wire the Force Measuring Sensor(s) (ref. to Fig. 3)
3. Connect the amplifier to the power supply.
4. The power supply voltage must be in the range 18 to 36V DC.
5. Perform offset compensation and calibration (ref. to chapters 4.5 to 4.9)
6. If required, do additional settings (ref. to 6“ Parameterization over Operating
Panel”)
3.3 Installation and wiring
Caution
In order to improve the natural convection and keep the temperature of the
amplifiers that are mounted in a cabinet, to a minimum, a distance of at least
15mm (0.6”) between the devices must be kept.
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.

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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.
3.4 Mounting the Force Sensors
Mounting of the force sensors is done according to the FMS Installation manual
which is delivered together with the force sensors.
3.5 Wiring the Amplifier
One or two force sensors can be connected to the measuring amplifier. When
using two force sensors, the sensors are internally connected in parallel. The
output signal of the measuring amplifier will then correspond to the average value
of the two sensors.
The connection between force sensors and measuring amplifier has to be done
using a 2x2x0.25mm2[AWG 23] shielded twisted-pair cable. The cable must be
installed separate from power lines.

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Fig. 3: Wiring Diagram EMGZ309 EMGZ_309_BA_Manual.ai
Ethernet connectors EMGZ_309_BA_Manual.ai
Caution
Bad earth ground connection may cause electric shock to persons, malfunction of
the total system or damage of the electronic unit! It is vital to ensure that proper
earth connection is done.
Note
The shield should be connected only to the electronic unit. On the force sensor
side the shield should stay open.

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4 Configuring the Amplifier
4.1 Power up the EMGZ 309
1. Connect the first force sensor (see Fig.3 Wiring Diagram EMGZ309)
2. Check whether applying a force in measuring direction (in the direction of the
red point) on the first sensor results in a positive output signal. If not, exchange
the two signal wires of the corresponding force sensor in the terminal block
(terminals 12/13).
3. If applicable, connect the second force sensor.
4. Check whether applying a force in measuring direction on the second sensor
results in a positive output signal. If not, exchange the two signal wires of the
corresponding force sensor in the terminal block (terminals 22/23)
4.2 Operating Panel
Fig. 4: Operating Panel EMGZ309.W E309007e
The keys on the operating panel have the following functions:
Key Key Function
Change the selections or increase / decrease the values
Enter
>0< + PARA Enter Offset Compensation Procedure. Press the two keys at
the same time for longer then 3 sec.
Cal + PARA Enter Calibration Procedure. Press the two keys at the same
time for longer then 3 sec.
PARA Enter the Parameter Setting Mode. Press the key at the same
time for longer then 3 sec.

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4.3 Change the Measuring Units
The default tension measuring units is N (Newton). The user can, however, select
another unit before the calibration process. To select the units of measure, follow
the steps below:
1. Hold the PARA key until the display changes to [Dis. Filt]
2. Scroll the menu by pressing the key until the display shows [Unit]
3. Press the and the word [Unit] will start flashing indicating that the unit of
measure can now be changed.
4. With every press of the keys the display will change from N, kN, then
to lb, g, kg.
5. Stop at the desired unit and press the again to confirm the selection.
6. Press the PARA key for longer then 3 sec. to save the setting and return to the
Operating State. Or if no action is taken after 30 seconds, the value will be
stored in the system automatically.
4.4 Change the Device Mode
The EMGZ309 amplifiers have two Device Modes:
● Display of Force Gauge: Tension data are displayed in a force unit
● Display of Voltage Gauge: Tension data are displayed in Volt (V)
1. Go to Parameter Selection Mode (press PARA key longer than 3 sec).
2. Go to Parameter [DevicMod]
3. With the key select desired Device Mode [ForcGaug] or [VoltGaug] and
confirm selection with the key .
Note
Each change of the Device Mode requires a re-calibration of the system (see
chapter 4.8).
4.5 Offset Compensation
With the Offset Compensation you can compensate the roller weight. It is always
performed before the calibration. The Force Measuring Sensor should not be
loaded while the Offset Compensation is being done. There are two possible ways
performing the offset compensation.
A) Offset compensation over the operating panel (see chapter 4.6)
B) Offset compensation via the Web Browser.
For this method proceed to chapter 7.2; Fig. 22 and 23.

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4.6 Offset Compensation over the Operating Panel
1. Press the two keys >0< and PARA at the same time for longer then 3 seconds.
2. The display will show [Offset Complete] when the process is finished (see Fig. 5
State diagram offset compensation).
Fig. 5: State diagram offset compensation EMGZ309013e
4.7 Calibration
By calibrating (setting the Gain), amplifier and
load cells are adjust so that the display gives the
actual tension value. There are two methods of
calibrating the system. The first method uses a
defined weight (see Fig. 6). This method is the
preferred one since it delivers the most accurate
results. The second method is based on a
calculation method in conjunction with the FMS
Calculator. This Calculator can be down loaded
from the FMS web page. Please consult the
factory for this option.
The calibration can be performed over the
Operation Panel or via the Web Browser. For the
later proceed to chapter 7.3, Fig. 22 and 23.
Note
If the Device Mode is set to [VoltGaug], the force corresponding to the calibration
weight must be input in Volt (V) in the following calibration procedure. The
parameters System Force [SysForce] and Force at maximum output [F@OutMax]
won’t be requested (see also chapter 7.3, section B).
Fig. 6: Calibrating the
measuring amplifier
C431011e