Closed loop tension control principle

1. Force sensors measure the effective material tension.
2. The tension controller amplifies the measured signal from the force sensor and calculates an output value from the difference between the reference and feedback values.
3. The drive, brake, or clutch converts the output value from the tension controller into a corresponding torque or speed.
4. Constant tension in the process material can be maintained.

Advantages

• Defined, adjustable material tension
• Reproducible values in physical units (Newtons, Pounds, etc.)
• Known manufacturing conditions for finished products (quality recording capability)
  

LMGZ Force Measuring Bearing

The LMGZ series tension sensors offer the highest accuracy, reliability, and durability in the industry. The ultra flat sensor can be used in the most stringent space conditions.

A203 Series Force Measuring Sensors

The A203-Series Force Measuring Sensors is for use in live shaft roller applications. The straightforward mounting concept of the A 203 sensors saves time and money. The installation to the machine side frame is simply accomplished with only using a single mounting screw.

C203 Force Measuring Sensor

The dual flexion beam sensors of the C203 series set new benchmarks with regards to precision, reliability and economic efficiency.

CA203 Force Measuring Sensor

The CA203 series is made for dead shaft applications. FMS dual flexion beam technology sensors set new benchmarks with regards to precision, reliability and economic efficiency.

F202 Force Measuring Sensor

The F202 Series Force Measuring Sensor is for use in live shaft roller applications where limited space is available. Their slim design provides a new option for accurate web tension measurement on machines where wider sensor designs simply did not fit. The sensor is easily mounted to the machine side frame with two shoulder bolts.

FA202 Force Measuring Sensor with Dead Shaft Adapter

The FA202 Series Force Measuring Sensor is for use in dead shaft roller applications where limited space is available. The slim sensor design provides a new option for accurate web tension measurement on machines where wider sensor designs simply will not fit. The range of adapters covers the most popular shaft diameters.

LMGZ.D Double Range Force Measuring Bearing

The LMGZ.D double range force measuring bearing sensors offer the highest accuracy, reliability, and durability in the industry. Especially when processing widest kinds and widths of materials.

CZ205 Force Measuring Journal

The force measuring journals of the CZ 205 Series undertake the tension measurement in all kinds of continuous material processing applications.

UMGZ Force Measuring Bearing Block

The UMGZ force measuring blocks are ruggedly constructed, accurate and very reliable. They are used in normal and dry ambient conditions.

UMGZ.P Force Measuring Block

UMGZ.P force measuring blocks are a first-rate substitute for the discontinued Philips products PR 9951/52. They are with regards to the outline dimensions and mounting holes 1-to-1 compatible with the former Philips blocks. UMGZ.P blocks feature all typical characteristics of FMS products like simplicity, quality and enduring precision. They are the ideal sensors for a retrofit.

SMGZ Force Measuring Bearing Block

SMGZ force sensors are used in difficult ambient conditions, e.g. hydrocarbon media like, rolling oils or in high temperatures environments. They can be used in virtually any metal strip process.

PMGZ Force Measuring Bearing Block

These force sensors are perfect for difficult ambient conditions, e.g. cooling water, wet paper pulp, high temperatures, humidity, acids and bases. They can be used in virtually any wet environment.

IMGZ Series Force Measuring Roller

The measuring sensors are integrated in the roller and measure the forces which are acting on the roller in an accurately and effective manner.

RMGZ900 Force Measuring Roller

The RMGZ900 series force measuring rollers are designed as self contained cantilever mount sensors that minimise machine space requirements in continuous material processing applications.

RMGZ900mini Force Measuring Roller

The RMGZ900mini series sensors are designed as self contained cantilever mount sensors that minimise machine space requirements in narrow material processing applications.

RMGZ100 Force Measuring Roller

FMS force measuring rollers of the RMGZ100 series are used to measure the tension in ropes, cables, wires and narrow web materials.

RMGZ200 Force Measuring Roller

The Force Measuring Rollers of the RMGZ200-series are used to measure the material tension in wire and cable producing machinery such as planetary cage, tubular and rigid frame stranding machines as well as in bunchers and twisters. The rollers comprise a device for proper alignment and adjustment of the force measuring direction. This prevents centrifugal forces influencing the measuring results.

RMGZ300A Force Measuring Roller

The RMGZ300A Series force measuring roller is used to measure the tension in wires, cables and similar materials. This dedicated measuring roller family was developed to work in rotating applications with high revolutions.

RMGZ400 / 600 Force Measuring Roller

FMS force measuring rollers of the RMGZ400/600 series are used to measure the tension in ropes, cables, wires and narrow web materials.

RMGZ800A Force Measuring Roller

FMS force measuring rollers of the RMGZ800A series are used to measure the tension in ropes, cables, wires and narrow web materials - made for higher forces and stability

CR Force Measuring Roller

The force measuring rollers of the CR 208, CR 210 and CR 212 Series are ideal devises to measure tensions in wires, cables and narrow flat materials.

DMGZ Load Cell

The DMGZ300 series load cells measure force in the direction of the center axis of the sensor.

AMGZ Series Force Measuring Journal

The AMGZ Series sensors are designed as dead shaft sensors to allow easy roller change in continuous material processing applications.

ZMGZ Force Measuring Journal

The ZMGZ series force measuring journals are used to measure the tension in continuous material processing. Force measuring journals are utilized with rollers that have an internal bearing. A bearing mounts to the bearing seat of the load cell and fits inside the roller.

JG205 Force Measuring Journal

JG205 is ideally suited to work under the most stringent environmental requirements, where the exposure to aggressive chemical additives, high temperatures and humidity are factors. Thanks to its special compact and durable design these sensors are effectively used in textile applications.

EMGZ306A Compact Tension Measuring Amplifier

The EMGZ306A series is a single channel analogue tension measuring amplifier.

EMGZ307 Extra Robust Tension Measuring Amplifier

The EMGZ 307 series is a single channel analogue tension measuring amplifier in a robust, sealed aluminium housing.

EMGZ309 Digital Tension Measuring Amplifier

Digital plug & play amplifier with Ethernet capability. Parameter set-up is carried out either via the 3 keys or through a web browser.

EMGZ309-EIP Measuring Amplifier with EtherNet/IP Bus

EMGZ309.EIP amplifiers are an innovative enhancement of the successful 309 series. They are available with a built-in field bus based on EtherNet/IP technology (CIPTM Common Industrial Protocol IEC61158). The popular EtherNet/IP bus offers data transfer with cycle times of ≥2ms. The fast data rates enable real time tension control over the fieldbus.

EMGZ310 Digital Tension Measuring Amplifier

This versatile product includes latest technology and can replace the previous generation of analogue pot adjustment units. Setup is straightforward. All parameters are easily accessible via three keys. Calibration and offset compensation is done via the alphanumeric display efficiently and with high precision.

EMGZ310ComoACT Smartphone controlled Digital Tension Measuring Amplifier

The smartphone function allows the best visibility of tension display and quick configuration even with poor access to the electrical cabinet. With its simple and easy to use operation combined with its compact design, the new EMGZ310.ComACT tension amplifier from FMS has the potential to increase product quality and output while reducing product wastage with minimal investment.

EMGZ321 Left/right Tension Measuring Amplifier

The EMGZ321, a left/right strain gauge amplifier, measures the material tension on both sides of the roller independently. Thus it is possible to monitor the load distribution over the measuring roller with great accuracy.

EMGZ321.EIP Left/Right Tension Measuring Amplifier with EtherNet/IP-Bus

EMGZ321.EIP amplifiers are an innovative enhancement of the successful EMGZ321 series. With a built-in EtherNet/IP field bus the electronics offers data transfer with cycle times down to 2ms. The fast data rates enable real time tension control over Ethernet. This two channel strain gauge amplifier measures the material tension on both sides of the roller independently. Thus it is possible to monitor the load distribution over the measuring roller with great accuracy.

EMGZ470.D/472.D PROFIBUS® Tension Measuring Amplifier

The EMGZ470/472 is a double channel, digital tension measuring amplifier with integrated PROFIBUS® interface and suitable for 1 or 2 double range force sensors LMGZ.D

EMGZ470/472A.W PROFIBUS® Tension Measuring Amplifier

The EMGZ470/472 is a single channel, digital tension measuring amplifier with integrated PROFIBUS® interface.

EMGZ473.W Tension Measuring Amplifiers

Tension measuring amplifier with PROFIBUS® interface in a robust aluminium housing.

EMGZ474 PROFIBUS® Tension Measuring Amplifiers

Tension measuring amplifier with PROFIBUS® interface made for DIN rail assembly.

EMGZ480 Force Measuring Amplifier with CAN-BUS® Interface

In the tension measuring amplifiers of the EMGZ480 series parameter setting and data transmission are performed via an integrated CAN-Bus interface using the Open CAN CiA-DS 301® protocol. The amplifiers come in rugged, resilient aluminium housings. They were designed for dependable operation in rotating stranding machines for the most demanding environments.

EMGZ490 Tension Measuring Amplifier with PROFINET Interface

The amplifier EMGZ 490 has been designed to work in PROFINET RT networks. Its field of applications is in production lines where tension of moving webs needs to be monitored or controlled. Making full use of the PROFINET RT features this amplifier can cope with very fast applications

EMGZ600 Series Digital Tension Measuring Amplifier

Microprocessor controlled tension measuring amplifier for up to 4 channels with user programming keys, LCD display, robust housing and several special functions built-in.

ExMGZ100/200.ATEX Intrinsically Safe Barrier for Zone 1

The ExMGZ100/200.ATEX intrinsically safe barrier is used for applications in intrinsically safe or explosion-proof environments. It is designed for single or double channel tension measurement and is placed between amplifier respectively controller and force sensor.

CMGZ309 Digital Tension Controller

The CMGZ309 tension controller responds to a broad range of missions. Its field of application is in production lines where moving web products are manufactured, processed or finished.
All internal parameters are also accessible through a web browser. The CMGZ309 is a versatile and economic PID tension controller that solves even your most demanding control tasks.

CMGZ309.EIP Web Tension Controller with EtherNet/IP Interface

The CMGZ309.EIP is a web tension controller with integrated EtherNet/IP bus interface. The fast data rates enable real-time tension control via your in-house Ethernet network. Design and functionality of this electronics is optimised for precise close loop tension control in web processing machinery.

CMGZ480 Controller with CAN-BUS©

Thanks to its specific features the controller CMGZ 480 is ideally suited for fast application e.g. in stranding machines.
They were designed for dependable operation in the most demanding environments. The rugged, resilient aluminium housings is sealed and rated for a protection class of IP67.

RTM X2.MP Radio Based Encoder Signal Transmission for Wire Control Systems

RTM X2.MP is an advanced solution for wire control in Bow Type Stranding Machines. The fully equipped MP-system can transmit up to 16 digital inputs, 16 digital outputs, one analogue input, one analogue output, two force measuring rollers and 4 encoder channels. The later can e.g. be used for close loop control of drives and the control of the traverse guide in individual bobbins.

RTM X42 Wireless Multi-channel Tension Control, System Overview

The RTM X42 utilizes force sensors to measure the tension of individual wires or strands, and transmits this data wirelessly from the rotating to the static part of the machine. The new RTM X42 series is available in 5 variants for pure monitoring solutions or for tension control via a PLC. A sophisticated range of interface options allows a quickly and efficiently integrations into the existing communication and control infrastructure of the stranding machine. RTM X42 is primarily suitable for Cage or Tubular Stranders.

RTM X42.IO Wireless Multi-channel Tension Control with Analogue Outputs

The RTM X42.IO series utilizes force sensors to measure the tension of individual wires or strands, and transmits this data wirelessly from the rotating to the static part of the machine. Analogue outputs can interface a PLC or equivalent devices for controlling purposes. Designed as a flexible multi-channel system, RTM X42.IO is primarily suitable for Cage or Tubular Stranding Machines with up to 42 pay-off stations.

RTMX 42.PC Wireless Multi-channel Tension Monitoring with PC-RTM-Software Package

The RTM X42.PC System with its PC-based processing and analysis unit is optimised for tension monitoring. It provides for the efficient and accurate measurement, transmission, and evaluation of material tension values on rotating Wire Processing Machinery. Designed as a flexible multi-channel system, RTM X42.PC is primarily suitable for Cage or Tubular Stranding Machines with up to 42 pay-off stations.

RTM X2 - The Cost-Effective System for Wireless Tension Control (2 channels)

The FMS RTM X2 transmits wire tension data from the inner to the static machine part of rotating machinery. The tension of the strands can so be individually measured, controlled and monitored. The system is comprised of force sensors, an EMGZ482-Transmiter and EMGZ482-Receiver. RTM X2 is primarily suitable for Bow Stranders, Bunchers and Twisters.

RTM 01/02 Radio Transmitted Tension Monitoring System (multi-channel)

The FMS radio transmitted tension monitoring system (RTM) is designed to monitor tension of individual wires or cables in rotating applications. This system sends all the collected data via radio transmission. The RTM system is a complete tension monitoring package designed to easily retrofit onto older machines. It is ideal for upgrading existing machinery to current tension measuring technology.

Have a look at the RTM system video

Closed loop control

1. The web guide sensor detects the position of the material web.
2. The web guide controller calculates the deviation from the reference position and drives the steering frame actuator accordingly.
3. The steering frame actuator maintains the position of the material web at the reference location, thereby laterally controlling the web material.

FMS-webMASTER

The FMS web guide is mounted as close as possible to the location where the positional accuracy is required. With an FMS-webMASTER, the length of the steering frame (L) should be the same as the maximum material width (Mmax). For optimal control, the web guide sensor is mounted as close as possible to the outfeed of the steering frame. With an FMS-webDIRECTOR the guiding of the material will take place over a virtual turning point in the infeed run of the steering frame.

FMS-winderGLIDE

FMS-winderGLIDE The actuators of the FMS-winderGLIDE series have been specifically developed for use in unwind and winding stations. Utilizing powerful drives ensures they are suitable for moving large rolls and stands. The web guide sensor is mounted as close as possible to the nearest idler roller. The electric drives of the FMS actuators offer superior operation when compared to hydraulic drives when processing foodstuff and pharmaceutical packaging because there is no risk of contamination with e.g. oils or other hydraulic liquids.

US01B/04B Series Ultrasonic Edge Sensor

The ultrasonic sensors US01B/04B are suitable for the detection of all materials with the exception of sound transmissive ones (e.g. no open weave textiles). They are factory set, so that no adjustments are necessary. The main advantage of the US series is the reliable detection of transparent films.Due to the various sizes the sensors have a wide application range.

AZS01B/04B BlueFlash Optical Edge Sensor

The AZS BlueFlash series are optical edge sensors for the detection of all opaque materials. The used ultra linear, high resolution material edge mapping system provides to BlueFlash clear advantages compared to ultrasonic sensors. Two standard sizes cover a large material bandwidth.

DLS2 Line and Edge Sensor

The DLS2 digital line and edge detection sensor is self-adjusting and easy to apply in all types of web guiding applications. In line detection mode, the sensor can handle a solid line, an intermittent line, and also a line that is adjacent to or crossed by a pattern. The sensor can even sense holographic pattern.

Manual Sensor Adjustment BKS.V.A

The manual sensor adjustment BKS.V.A allows positioning of the sensors over the total width of the material. It consists of a steel profile, which is fixed to the steering frame, or separately mounted. The sensors are attached to the profile with brackets that may be moved sideways.

Manual Sensor Adjustment BKS.V

The manual sensor adjustment BKS.V allows positioning of the sensors over the total width of the material. Because of the closed steel profile the BKS.V allows larger distances between supports. Profiles of 20mm and 40mm are available.

Motorized Sensor Adjustment BKS.T

The motorized sensor adjustment BKS.T consists of an aluminium profile with a carriage that can be positioned over the total range of movement without play, by a stepper motor. Thus the material edge can be automatically searched over the complete width of the web. One motorized sensor adjustment is required per sensor.

BKS309 Series Digital Web Guide Controller

With Ethernet capability and easy to operate.

FMS-webMASTER BKS015 Ultra-compact Web Guide

The price - performance ratio of the BKS015 it’s hard to outgo for narrow web applications. The electronic control unit is integrated into the steering frame. The ultra-compact web guide provides enhanced material control for increased line speeds and improved quality. It is the ideal solution for existing as well as new narrow web production lines.

FMS-webMASTER BKS015 EE Web Guide with External Electronic

The BKS015 EE is the ideal solution for existing as well as new narrow web production lines. This ultra-compact and cost-consciously design with external electronic unit solves the most demanding mounting issues in your machine.

FMS-webMASTER 020

The steering frames of the FMSwebMASTER 020 series have been specifically developed for use in narrow web applications such as: label printing presses, small slitters and rewinders, film conversions, small packaging lines, etc. They are characterized by a compact and robust construction and are available with the controller integrated into the frame on either side.

BKS020 Splice Table

Straightforward, rugged splicing table to handle all kind of material webs on the FMS webMASTER steering frames of the Series BKS020. The work bench is made of stainless steel with straight and diagonal tracks to support accurate straight and angular cuts.
The web is clamped over the rollers by means of pneumatic elements. As an option the splicing table can be equipped with a micro adjuster to precisely align the web in vertical direction (e.g. for the adjustment of label pattern).

FMS-webMASTER 040

The steering frame FMS-webMASTER 040 offers many possibilities thanks to the modular design. It is therefore suitable for all types of machines. It is characterized by a compact and robust construction. The sensors are mounted to the steering frame using a manual or motorized sensor adjustment.

FMS-webDIRECTOR 041/042

The steering frames FMS-webDIRECTOR have been specifically developed for use in machines which have long, free spans. Due to the design with the turning point outside of the steering frame it can also correct large deviations in the web position. Thanks to the modular design the steering frames are adaptable to many different customer requirements.

FMS-winderGLIDE Type D.3 Actuator

The Type D.3 actuator is designed to equip medium-sized unwind and rewind stands. Thanks to its fast stepper motor and its spindle/ball screw systems the actuator works backlash free and with highest accuracy.

FMS-winderGLIDE Type D.6 Actuator

The FMS-winderGLIDE D.6 is an actuator designed for guiding heavy unwind and rewind stands. It utilizes a powerful and high accuracy stepper motor with 2500N of thrust force. When compared to hydraulic systems, this actuator operates clean and is suitable for the food and pharmaceutical packaging industry.