FMS RMGZ400B User manual

Installation Manual RMGZ400B/600B
Force Measuring Roller for Tension Measurement
Version 1.2 05/2015 ff
This installation manual is also available in German.
Please contact your local FMS representative.
Diese Montageanleitung ist auch in Deutsch erhältlich.
Bitte kontaktieren Sie Ihren nächstgelegenen FMS Vertreter.
© by FMS Force Measuring Systems AG, CH-8154 Oberglatt –All rights reserved

Installation Manual RMGZ 400B / 600B-series
20.05.2015 2
Table of Contents
1Safety Instructions.....................................................................................3
1.1 Description Conditions 3
1.2 List of Safety Instructions 3
2Product Information ..................................................................................4
2.1 Dimensions 4
2.2 Options 5
2.3 Order Code 5
2.4 Scope of Delivery 5
3Assembly ....................................................................................................6
3.1 Assembly Conditions 6
3.2 Assembly Preparations 6
3.3 Mounting the Force Measuring Roller on static Machine 7
3.4 Red Point Alignment in a Stranding Machine 7
4Electrical Connection.................................................................................9
4.1 Signals in the Wheatstone-bridge 9
4.2 Signal Assignment on Sensor Cable Connector 9
5Design and Functionality ........................................................................10
5.1 Functional Description 10
6Technical Specification ...........................................................................11

Installation Manual RMGZ 400B / 600B-series
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1Safety Instructions
All safety related regulations, local codes and instructions that appear in the
manual or on equipment must be observed to ensure personal safety and to
prevent damage to the equipment connected to it. If equipment is used in a
manner not specified by the manufacturer, the protection provided by the
equipment may be impaired.
Do not stress the equipment over the specification limits neither during assembly
nor operation. To do so can be potentially harmful to persons or equipment in the
event of a fault to the equipment.
1.1 Description Conditions
a) 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.
b) Risk of damage of machines
Caution
This symbol refers to information, that, if ignored, could cause heavy mechanical
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
The Force Measuring Rollers may not be stressed over the specification
limits neither during assembly nor operation. The unit’s overload protection value
may not be exceeded.
The attachment points for the Force Measuring Rollers on the machine
frame must be properly designed. The bearings need to be appropriately
mounted.
For correct installation and operation, follow the electrical wiring diagram
and instructions in this manual.

Installation Manual RMGZ 400B / 600B-series
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2Product Information
2.1 Dimensions
Fig. 1: Dimensions, outline drawing R400005us
RMGZ 400B / 600B Product Range
Nominal
Force
Order code
Dimensions in mm and [in.]
N
[lbf]
d1
d2
d3
l1
l2
l3
60
[13.5]
RMGZ416B
85
[3.35]
100
[3.94]
110
[4.33]
6.5
[.256]
4
[.157]
13
[.512]
100
[22]
RMGZ421B
200
[45]
RMGZ422B
500
[112]
RMGZ425B
1000
[225]
RMGZ631B
110
[4.33]
125
[4.92]
136
[5.35]
7.5
[.295]
5
[.197]
13.5
[.531]
2000
[450]
RMGZ632B
4000
[900]
RMGZ634B

Installation Manual RMGZ 400B / 600B-series
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2.2 Options
H14 = Right angle connector
H16 = Temperature range up to 120°C, [248°F]
H31= For vacuum applications
2.3 Order Code
Order Code Example:
RMGZ422B. H14. H16
Sensor-Type
Option 1
Option 2
2.4 Scope of Delivery
1 Force Measuring Roller; 1 Straight Connector; Pin ø3x5 [0.118“ x 0.197“]
Installation Manual
Not included:
Sheave; sensor cable; mounting brackets

Installation Manual RMGZ 400B / 600B-series
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3Assembly
3.1 Assembly Conditions
The Force Measuring Rollers RMGZ 400B and RMGZ 600B are defined as “partly
completed machinery” according to the Directives 2006/42/EC, article 2. In
order to assure a proper functionality of the parts and guarantee the essential
health and safety requirements of operators working with it, the following
conditions for the assembly must be met:
Caution
The Measuring Rollers may not be stressed over the specification limits neither
during assembly nor operation. The unit’s overload protection value may not be
exceeded.
Caution
The attachment points for the Force Measuring Rollers on the machine frame
must be properly designed. The bearings need to be appropriately mounted.
Caution
For correct installation and operation, follow the electrical wiring diagram and
instructions in this manual.
3.2 Assembly Preparations
The Force Measuring Rollers RMGZ 400B and RMGZ600B are usually mounted
on a mounting bracket which is in turn installed on the machine frame or on the
rotating base plate of a stranding machine. The built-in flange on the force
measuring roller provides M8 thread holes for easier assembly. If mounting
brackets are used, they need to have mounting holes with a spline groove (see
drawing Fig. 1, detail A).
Mounting brackets and machine must be prepared for the installation of the
force measuring rollers. The corresponding mounting holes must be drilled in the
machine frame.
Caution
If the RMGZ 400B/600B Force Measuring Rollers are used as a replacement for
their predecessor products RMGZ 400A/600A, the 4mm 0[.157“] position pin
must be replaced with the supplied pin ø3x5 [0.118“ x 0.197“].

Installation Manual RMGZ 400B / 600B-series
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3.3 Mounting the Force Measuring Roller on static Machine
The support surface for the mounting brackets on the machine frame must be
meticulously crafted. The brackets are mounted on the machine. The Force
Measuring Roller is screwed to the mounting holes of the mounting brackets
whereas the spline groove holds the position pin preventing the roller from
twisting out of position. Red point and position pin are aligned to each other (see
Fig. 1).Their positions depend on the direction of the resulting force. If the force
acts in the direction of the red point, the measuring amplifier will show positive
measuring values.
3.4 Red Point Alignment in a Stranding Machine
In rotating applications (e.g. in stranding machines) the force measuring rollers
are mounted such that centrifugal forces are compensated. Using FMS RMGZ
sensors this can be achieved by turning the Red Point parallel to the rotation axis
and in direction of the positive force component (refer to Fig. 2).
Fig. 2: RMGZ 400B / 600B Red Point alignment on rotating machines R800004d

Installation Manual RMGZ 400B / 600B-series
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Caution
It is of paramount importance to compensate the centrifugal forces caused by
the rotating base plate of the strander. In fast rotating machines already a small
deviation in parallelism between rotation axis and Red Point (of e.g. 0.3°) can
lead to a zero point error.
The adjustment of the Red Point and hence the quality of the sensor adjustment
as described in chapters 3.4 can be tested after offset compensation and
calibration. If the reading of an unloaded Force Measuring Roller stays at zero
(e.g. 0 N) regardless of the load cell position (e.g. at 12 o’clock or at 6 o’clock
position), the red point is correctly aligned.

Installation Manual RMGZ 400B / 600B-series
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4Electrical Connection
4.1 Signals in the Wheatstone-bridge
Wiring the Force Measuring Roller to the measuring amplifier is achieved by using
a 2x2x0.25mm2[AWG 23] shielded twisted-pair cable. This cable must be
installed away from power lines. The connection is done according to Fig.3. The
shield needs to be connected only to the measuring amplifier.
Caution
In order to avoid ground loops and hence electrical interferences, the cable shield
needs to be connected only to the measuring amplifier. On the force measuring
side the shield must stay open.
4.2 Signal Assignment on Sensor Cable Connector
Fig. 4: Pin Assignment Connector 5-Pol Mini (seen from soldering side) R300004e
Fig. 3: Wiring diagram R400003e

Installation Manual RMGZ 400B / 600B-series
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5Design and Functionality
The Force Measuring Roller RMGZ 400/600 series are used to measure the
tension of individual strands, wires, cables, and similar materials in stranding
machines. An application specific sheave can be mounted on the rotating flange.
The lifetime lubricated deep groove ball bearing is build-in. The mating parts of
the ball bearing form a frictionless gap type seal for the bearing. The force sensor
itself, which consists of two rings connected by a measuring body, is situated
inside the stationary inner ring.
5.1 Functional Description
A foil type strain gauge mounted in a full Wheatstone -bridge configuration
measures the actual tension. Factory set overload protection devices prevent
deformation of the measuring web caused by overload. The load must be applied
in the middle of the bearing so that no tilting forces can act on the bearing and
the measuring body.

Installation Manual RMGZ 400B / 600B-series
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6Technical Specification
Sensitivity
1.8mV/V ±2%
Tolerance of sensitivity
< ±0.2%
Accuracy class
±0.5% (based on F nominal)
Deflection
0.1 mm; [0.004”]
Load rating (bearing)
C dynamic
RMGZ 400B: 11.8 kN; [2652.7 lbf]
RMGZ 600B: 21.2 kN; [4765.9 lbf]
Speed limit
RMGZ 400B: 8500 rpm
RMGZ 600B: 6700 rpm
Temperature coefficient
±0.1% / 10K
Temperature range
–10...+60°C [14...+140°F]
(Option H16: –10...+120°C [14...248°F])
Overload Protection [x Fn]
10 times the rated nominal force
Input resistance
350 Ω
Supply voltage
1...12 VDC
Protection Class
IP 42
Electrical Connector
5-pole mini connector
Sensor Material
Stainless steel
Material of Rotating Flange
Aluminium
Weight
RMGZ 400B: 0.75 kg; [1.65 lbs]
RMGZ 600B: 0.9 kg; [1.98lbs]

Installation Manual RMGZ 400B / 600B-series
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FMS Force Measuring Systems AG
Aspstrasse 6
8154 Oberglatt (Switzerland)
Tel. +41 44 852 80 80
Fax +41 44 850 60 06
info@fms-technology.com
www.fms-technology.com
FMS Italy
Via Baranzate 67
I-20026 Novate Milanese
Tel: +39 02 39487035
Fax: +39 02 39487035
fmsit@fms-
technology.com
FMS USA, Inc.
2155 Stonington Ave. Suite
119
Hoffman Estates, IL 60169
USA
Tel. +1 847 519 4400
Fax +1 847 519 4401
fmsusa@fms-technology.com
FMS UK
Highfield, Atch Lench Road
Church Lench
Evesham WR11 4UG, Great Britain
Tel. +44 1386 871023
Fax +44 1386 871021
fmsuk@fms-technology.com
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