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Installing Tecnotion Ironless Linear Motors TECNOTION B.V. PO BOX 23 7600 AA ALMELO THE NETHERLANDS Document nr. 4022.363.4197.1 Version 2.1 Issue Date: February 2005...
Introduction Generally a linear motor system is a part of a specific machine. Tecnotion’s linear motors can be combined with numerous application devices. This installation manual is intended for those technicians who construct a machine that includes a linear motor system When installing a linear motor system one should be familiar with some important safety remarks.
The manufacturer also declines all responsibility in case of accident or damage in conditions that differ from those indicated in the manual; Tecnotion also declines all responsibility for damage caused by improper use of the Linear Motor.
TECNOTION INSTALLING IRONLESS LINEAR MOTORS 1.2. Safety warnings The Linear Motor is used as a part of a machine. The user has to take care that the machine as a whole fulfils all CE requirements. The magnet yokes contain a strong magnetic field. Lose iron objects that are brought within 5cm of the yokes, can be drawn into the yokes and cause damage.
Be sure that there is no possibility of accidental connections. 1.3. EC declaration Tecnotion B.V. declares that the all linear motors produced by Tecnotion are manufactured in accordance with the applicable European directives and in conformity with the following standards:...
2. Components Figure 1: A complete ironless linear motor system An ironless linear motor of Tecnotion is not a system on itself. It contains several components, such as a coil unit and magnet yokes. The components should be build within a total machine concept or a working unit.
TECNOTION INSTALLING IRONLESS LINEAR MOTORS 2.1. Basic components The basic Linear Motor components supplied by Tecnotion are: • The coil unit (the N and S version differing in voltage and current requirements) Figure 2: Coil unit • The magnet yoke (in different lengths, varying in outer dimensions...
• fixing components, like bolts and pins; • additional devices, like a servo controller and a linear encoder; • the right tools. These features are no part of Tecnotion’s standard delivery. If desired Tecnotion can supply all additional components as well as some types of devices.
2.2.2. Controller and measurement unit Required is: • An appropriate servo controller/amplifier • A ruler and a linear encoder or an analogue Hall module • Power supply, cabling and connectors For more information please contact Tecnotion. DOCUMENT NR 4022.363.4197.1 COMPONENTS...
TECNOTION INSTALLING IRONLESS LINEAR MOTORS 2.2.3. Tools Necessary for the installation is: • Allen Key set Occasionally useful are: • Heat sink compound (optional) • Wipes to clean mounting surfaces DOCUMENT NR 4022.363.4197.1 COMPONENTS...
TECNOTION INSTALLING IRONLESS LINEAR MOTORS 3.1. Installation order Figure 5: Ironless linear motor system Y oke Coil unit Magnet S lide Mounting surface for magnet track Figure 6: Coil unit, slide, magnet yoke and mounting surface, schematically The installation order of this instruction manual must be followed.
TECNOTION INSTALLING IRONLESS LINEAR MOTORS 1. Mount the magnet yokes to the mounting surface of the machine. 2. Mount the coil unit to the involved machine parts 3. Connect the wiring to the coil unit. From a magnetical point of view the installation order of the mechanics is not critical, because no attraction is present between the coil unit and magnet yokes.
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TECNOTION INSTALLING IRONLESS LINEAR MOTORS Specifications: • Surface for coil unit having a flatness better then 0.1mm. • Surface for the track of magnet yokes having a flatness better than 0.1mm. The track of the magnet yokes – from now on to be called the magnet track –...
(A1 and A2) will be obtained. The dimensions of the coil units and magnet yokes can be found on the internet site of Tecnotion: www.tecnotion.com. 3.3. Magnet track mounting instructions Especially the magnet yokes must be handled with care.
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TECNOTION INSTALLING IRONLESS LINEAR MOTORS The following yokes can be mounted with mechanical contact using the mutual attraction force of the magnet yokes. Take care: apply the principle of controlled rotational mounting. Uncontrolled approach may cause damage to the magnets (see Figure 9).
TECNOTION INSTALLING IRONLESS LINEAR MOTORS 3.4. Coil unit mounting instructions Be sure that the mounting surfaces are free of contamination. Particles > 0.1mm can cause inaccurate placement and consequently damage to your Linear Motor. The mounting of the coil unit on appropriate and clean mounting surfaces is very straightforward because no attraction forces are present between coil unit and magnet yokes.
TECNOTION INSTALLING IRONLESS LINEAR MOTORS 3.5. Electrical Connections Before starting any activity on the wiring, make sure that the mains are disconnected. Work carefully according the instructions belonging to the applied servo controller. Be sure your machine meets the requirements of the EN 60204 standard.
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PT C KT Y green Linear motor S lide Figure 10: Wiring scheme UM, UL and UX series ironless S ervo amplifier gr/ye Linear motor S lide Figure 11: Wiring scheme UC series ironless DOCUMENT NR 4022.363.4197.1 INSTALLATION...
TECNOTION INSTALLING IRONLESS LINEAR MOTORS 3.5.2. Power lines The three phases of the motor’s power cable have to be connected to the servo amplifier in such a way that the positive three phase direction of the motor conforms the positive direction of the linear encoder. This polarization has to be tested, it cannot be seen at first sight.
3.5.4. Temperature Sensor The coil unit of the ironless Linear Motors – except for the UC series – is equipped with two temperature sensors, one of the PTC-1k-type and one of the KTY21-6 type. The PTC resistor is the motor’s standard device for checking the heat production in the coil unit.
±1ºC if this “thermometer” is calibrated at 1 or 2 relevant temperatures (put the complete coil unit into an oven). Contact Tecnotion if more information is needed. Figure 13: Scheme for obtaining a linear voltage signal from the KTY-sensor DOCUMENT NR 4022.363.4197.1...
Internally all ironless linear motors are equally wired and connected, so one test satisfies to find out the polarization of a motor ruler combination. If more axes are constructed in a similar way the polarization will be equal. For more information, please contact Tecnotion. DOCUMENT NR 4022.363.4197.1 INSTALLATION...
TECNOTION INSTALLING IRONLESS LINEAR MOTORS Chapter 4. Operation 4.1. General When you are convinced that your application’s linear motor system is assembled in a proper way, both mechanically and electrically, you can do the next step. You can put your motor system into operation.
TECNOTION INSTALLING IRONLESS LINEAR MOTORS 4.2. Configuring The amplifier can be powered up. The following items should be configured as parameter settings of your specific servo amplifier: • Presence and switch mode of end switches, • Presence of an electromechanical brake, •...
TECNOTION INSTALLING IRONLESS LINEAR MOTORS • Maximum speed (rpm), • Number of increments or periods of feedback device in one rotation (divide pole pitch length by increments per pole pitch). For linear based software: • Pole pitch, • Maximum speed (units!), •...
TECNOTION INSTALLING IRONLESS LINEAR MOTORS 4.4. Starting up Generally spoken, build it up in small steps. Don’t climb the stairs with 2 or 3 steps in one time. Start the tuning with only the speed loop, initially with very low speeds.
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