Complete Edition Series MPM
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Manual High Performance Norm-Motors corresponding to efficiency class IE4 complete edition series MPM „cold technology “ increases the motor power up to 4 times © Merkes GmbH Version I/12 1

High Performance Norm-Motors – Series MPM your own notes © Merkes GmbH Version I/12 2

High Performance Norm-Motors – Series MPM Legend of the present manual Version Reason I/12 first edition Improvement of motors subject to technical alterations. All rights reserved. No part of this document is allowed to be reproduced in any form (by either print, photocopy, film shots or any other method) without the written agreement of Merkes GmbH. © Merkes GmbH Version I/12 3

High Performance Norm-Motors – Series MPM Merkes GmbH product lines 2. Merkes GmbH product lines For 15 years Merkes GmbH has established itself as a supplier of special motors. 2.1. Synchronous Servomotors MT series 0.1 Nm to 115Nm, moments of inertia for smooth running MH series from 0.27 Nm to 27.3 Nm, high dynamics, high energy density, 10-poles and pole winding technology. MN series from 0,28Nm to 60Nm, dynamically and produced with high-automation technology All servomotors are available with a variety of options. Keyway, holding brake, resolver, various encoders… 2.2. Synchronous...

High Performance Norm-Motors – Series MPM Merkes GmbH product lines present state asynchronous norm-motors can be replaced by synchronous motors by new materials, existing technical know-how and experience of line production. The loss of engine power is reduced to about half. The MPM motor series (Merkes permanent magnet motor) takes up the basic physical principle of the synchronous motor and combines it with other elements of a proven principle motor serial production. o Based on draft standard EN 60034-31 o Very good motor efficiency Motor housing and ratings of norm-motors IE 4 Suitable...

High Performance Norm-Motors – Series MPM Merkes GmbH product lines Figure 1 shows the torque and power curves for the 1.1 kW, the 2.2 kW and 4.0 kW motor. The solid lines represent the course of the torque and the dashed lines the course of the performance of the corresponding motor Figure 1: Illustration of the torque- and performance curves of the MPM-series The Δ-connected machines supplies on the output shaft at any speed between 1000-4000 rpm / min at approximately the same winding temperature the rated torque. The motors can also be connected to the Y-which, however, reduces the...

High Performance Norm-Motors – Series MPM Merkes GmbH product lines Figure 2 shows the variation in efficiency over the speed of the three motors of 1.1 kW, 2.2 kW and 4.0 kW at the rated output torque. The presentation is based on the draft standard EN 60034-31 figure 2: Illustration of the efficiency with loading the MPM series with the rated torque 2.3. The three motors of the MPM series MPM series 1,1kW speed 0 – 4.000min-1 ∆ – connection at 1.000min-1: ≙ mechanical power 1,1kW at 2.000min-1: torque 10,5Nm ≙ mechanical power 2,2kW at 3.000min-1: torque 10,5Nm ≙ mechanical power 3,3kW at...

High Performance Norm-Motors – Series MPM An operation in Y-star connection is also possible, however, the speed range when using a frequency inverter at a supply voltage of 400VAC is limited to maximum 2000 min-1. The known torques and the rotation speed dependent mechanical power defined by equation (1), remain the same. The maximum permitted speed in intermittent operation of 4000min-1 can be achieved only through the field weakening operation of the drive, which is exacerbating the available torque. If this option for your process comes into question we kindly ask you to contact us. An...

High Performance Norm-Motors – Series MPM Safety Advices 3. Safety Advices o All operations on transport, assembly, start-up and maintenance have to be done by skilled and qualified personnel only. The qualified personnel must know and observe the following standards and guidelines: DIN VDE 0105, IEC 364, accident prevention regulations Deviant behaviour may cause serious injury to persons and may lead to damages. o o The machines comply with the standard IEC/EN 60034. Before mounting and start-up carefully read the documents on hand. Follow the instructions for power supply (motor label...

High Performance Norm-Motors – Series MPM Important Notes 4. Important Notes The Norm - Motors of the MPM series are precision motors. They are not intended to be connected directly to a rotary current power supply system. They have to be operated only by a particular frequency inverter having “Sensorless-Vector-Control” mode. A direct connection to main supply will lead to the destruction of the motor. To fit zero backlash drive elements strictly use the intended thread at the motor shaft and if possible warm up the drive elements. Only use suitable tools to fit the drive elements. Avoid...

High Performance Norm-Motors – Series MPM In General 5. In General 5.1. About this manual This manual describes the High Performance Norm-Motors of the MPM series with permanent magnets and it is directed towards specialized staff having knowledge of electrical and mechanical engineering. The Norm-Motors are operated together with the corresponding frequency inverters. Therefore absolutely follow the documentation of the inverters, too. 5.2. Provisionary use The Synchronous High Performance Norm-Motors are designed to be operated by frequency inverters only . A direct connection to main...

High Performance Norm-Motors – Series MPM In General figure 1: maximum rated bearing load at shaft A-side type of motor MPM-1,1 MPM-2,2 MPM-4,0 5.3.2. FRmax [N] FAmax [N] Protection class (without oil seal) Standard for all motors is MPM 1,1kW MPM 2,2kW IP55 MPM 4,0kW 5.3.3. Terminations The motors can be connected for operation with a frequency inverter in either delta or star. The following figure 3 shows the necessary interconnections in the terminal box. Figure 3: possible interconnections 5.4. Selection criterion • rated torque Mn [Nm] • rated speed at rated torque nn [min-1] • rated...