Operating Instructions

EDBMUXXU00408498

Global DriveServo motors MDXK, MDFQThree-phase AC motors MDXM

These Operating Instructions are valid for servo motors and three-phase AC motors with the nameplate:

MD === == === – ==

Type of current

D = Three-phase AC

Ventilation

F = Forced ventilationS = Natural ventilation (cooling by convection and radiation)I = Self ventilation

Enclosure

M = Modular three-phase AC motorK = Compact motor with square housing and cooling ribsQ = IP23 motor with square housing

Type of machine

A = Asynchronous machineS = Synchronous machine

Attachments

AG = Absolute value encoderBA = Brake and sin-cos absolute value encoder or SSI absolute value encoderBG = Brake, resolver and incremental encoderBI = Brake and incrmental encoder (pulse encoder)BR = BrakeBS = Brake and resolverBW = Brake, resolver and absolute value encoderBX = Brake, encoder preparedGX = No brake, encoder preparedNN = No brake, no encoderIG = Incremental encoder (pulse encoder)RA = Resolver and absolute value encoderRI = Resolver and incremental encoderRS = Resolver

Frame size

Length

Number of pole pairs

. 1998 Lenze GmbH & Co KG

No part of these Instructions must be copied or given to third parties without written approval of Lenze Lenze GmbH & Co KG.

All indications given in these Operating instructions have been selected carefully and comply with the hardware and software described. Nevertheless,deviations cannot be ruled out. We do not take any responsibility or liability for damages which might possibly occur. Required corrections will be made inthe following editions.

Version 2.0 03/99

Nameplates for the motors

MDXKA asynchronous servo motors MDXKS synchronous servo motor

2 3

4

56 7 8

9

10

12 13 14 15

16 17

18

1 1 2 3

4

56 7 8 9

11 12 13 14 15

16 17

18

MDFQA asynchronous servo motors IP23 MDXMA modular three-phase AC motors

1 2 4 5

6

7 8

9 1012

13

1617

18

19

20

1 2 4 5

6

7 8

1012

13

1617

18

19

20

No. Explanation No. Explanation1 Motor type: Three-phase AC motor 11 Maximum current Imax [A]

2 Lenze motor type 12 Rated power Pr [kW]

3 Ident. No. 13 Rated voltage Vr [V]

4 Type of protection 14 Continuous standstill torque M0 [Nm]

5 Thermal class 15 Temperature sensor labelling6 Rated current Ir [A] 16 Holding brake data:

Voltage, current, torque7 Rated frequency fr [Hz] 17 Encoder labelling

8 Rated speed nr [min-1] 18 Motor No.

9 Rated torque Mr [Nm] 19 Selection number for operation with servo inverters of the9300 series 1)

10 Rated power factor cos ϕ 20 Production data

1) For operation with servo inverters of the 9300 series:Enter the indicated selection number under C0086 to automatically optimize the control characteristic.

Contents

i BAMDXX EN 2.0

1 Preface and general information 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.1 About these Operating Instructions 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.1.1 Terminology used 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.1.2 What is new? 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 Items supplied 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3 Legal conditions 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 Safety information 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.1 Safety and commissioning instructions for Lenze low-voltage machinery 4. . . . . . . . . . . . . . . . . . . . . . . .

2.2 Safety and application instructions for Lenze controllers 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3 Residual hazards 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.4 Layout of the safety information 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 Technical data 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.1 General data/application conditions 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2 Rated data 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3 Sound pressure level 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 Installation 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.1 Mechanical installation 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.1.1 Transport, storage and installation 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.1.2 Mounting of attachments 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2 Electrical connection 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.2.1 Important notes 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.2.2 Wiring according to EMC 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.2.3 Connection diagrams 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 Commissioning 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.1 Before you switch on 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.2 Commissioning 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.3 Operational test 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 During operation 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 Fault detection and elimination 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8 Maintenance/repair 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8.1 Maintenance intervals 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.2 Maintenance 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8.2.1 Resolver setting - synchronous servo motors 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8.2.2 Temperature check for servo motors 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.3 Repair 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents

ii BAMDXX EN 2.0

Preface and general information

1 BAMDXX EN 2.0

1 Preface and general information

1.1 About these Operating Instructions

l These Operating Instructions are to be used for safe working on and with servo motors of typeMDXK / MDFQ and modular three-phase AC motors of type MDXM. They contain safetyinformation which must be observed.

l All persons working on or with the stated servo motors or modular three-phase AC motorsmust have these Operating Instructions available and observe the information and notesrelevant for their work.

l The Operating Instructions must always be in a complete and perfectly readable state.

l If the information and notes given in these Operating Instructions do not meet yourrequirements, please refer to the Operating Instructions for the controllers.

1.1.1 Terminology used

Term In the following text used forMotor Servo motor type MDXK, type MDFQ

Modular three-phase AC motor type MDXMController Any servo inverter of the 9300 series

Any frequency inverter of the 8200 seriesDrive system Drive systems with MDXK / MDFQ servo motors, with MDXM modular three-phase AC motors

and other Lenze drive components

1.1.2 What is new?

Material no. edition of Important Contents397403 08/97 Operating Instructions for DXRA asynchronous three-phase AC

motors

397399 07/97 Operating Instructions MDXKX servo motors408498 03/99 replaces 397403

replaces 397399l Common Operating Instructions MDXK, MDFQ, MDXMl Completely revised contentsl Completely revised layout

1.2 Items supplied

The drive systems are individually combined. After receipt of the delivery, check immediately whetherthe items delivered match the accompanying papers. Lenze does not accept any liability fordeficiencies claimed subsequently.

Claim

l visible transport damage immediately to the forwarder.

l visible deficiencies/incompleteness immediately to your Lenze representative.

Preface and general information

2 BAMDXX EN 2.0

1.3 Legal conditions

Labelling Nameplate CE mark ManufacturerLabellingLenze motors are clearly identified by theindications on the nameplate.

Conforms to the EC Low-Voltage Directive Lenze GmbH & Co KGPostfach 101352D-31763 Hameln

Application asdirected

MDXK / MDFQ servo motors, MDXM modular three-phase AC motorsl must only be operated under the conditions prescribed in these Instructions.l are components:

– for use as small drives.– for installation in a machine– used for assembly together with other components to form a machine.

l comply with the requirements of the Low-Voltage Directive.l are not machines for the purpose of the Machinery Directive.l are not to be used as domestic appliances, but only for industrial purposes.Drive systems with MDXK / MDFQ servo motors, MDXM modular three-phase AC motorsl comply with the EMC Directive if they are installed according to the guidelines for CE-typical drive systems.l can be used:

– on public and non-public mains.– in industrial as well as residential and commercial premises.

l The user is responsible for the compliance of his application with the EC directives.Any other use shall be deemed inappropriate!

Liability l The information, data, and notes in these Operating Instructions met the state of the art at the time of printing. Claims for modification ofmotors which have already been supplied cannot be derived from the information, illustrations, and descriptions.

l The specifications, processes, and circuitry described in these Operating Instructions are for guidance only and must be adapted to yourown specific application. Lenze does not take responsibility for the suitability of the process and circuit proposals.

l The specifications in these Instructions describe the product features without guaranteeing them.l Lenze does not accept any liability for damage and operating interference caused by:

– disregarding the Operating Instructions.– unauthorized changes or modifications to the motors.– operating faults.– improper working on and with the motors.

Warranty l Warranty conditions: see Sales and Delivery Conditions of Lenze GmbH & Co KG.l Warranty claims must be made to Lenze immediately after detecting the deficiency or fault.l The warranty is void in all cases where liability claims cannot be made.

Disposal Material recycle disposeDisposalMetal - -Plastic - -Printed-board assemblies - -

Safety information

3 BAMDXX EN 2.0

2 Safety information

2.1 Safety and commissioning instructions for Lenzelow-voltage machinery

(in conformity with the Low-Voltage Directive 73/23/EEC)

1. GeneralLow-voltage machines have dangerous, live and rotating parts as wellas possibly hot surfaces. All operations serving transport, connection,commissioning and maintenance are to be carried out by skilled,responsible technical personnel (observe EN 50110-1 (VDE 0105-100);IEC 60364). Improper handling can cause severe injuries or damages.Synchronous machines induce voltages at open terminals duringoperation.2. Application as directedThese low-voltage machines are intended for industrial andcommercial installations. They comply with the harmonized standardsof the series EN 60034 (VDE O53O). Their use in hazardous areas isprohibited unless they are expressly intended for such use (followadditional instructions).The enclosures ≤ IP23 are by no means intended for outdoor use.Air-cooled designs are rated for ambient temperatures between -15 °Cand -10 C and +40 C and altitudes ≤ 1000 m a.m.s.l., from -20 °Cto +40 °C without brake or with spring-operated brake, with separateventilation or self ventilation, from -15 °C to +40 °C with permanentmagnet brake and from -10 °C to +40 °C with separate fan. Checkindications on the nameplate and if they are different, observe them.The conditions on site must correspond to all nameplate data.Low-voltage machines are components for the installation intomachines as defined in the Machinery Directive 98/37/EC.Commissioning is prohibited until the conformity of the end productwith this Directive has been established (follow a.o. EN 60204-1).The integrated brakes cannot be used as safety brakes. It cannot beruled out that factors which cannot be influenced, such as oilingression because of a defective A-side shaft seal, cause a torquereduction.3. Transport, storageThe forwarder must be informed directly after receipt of the goodsabout all damages or deficiencies; if necessary, commissioning mustbe stopped. Tighten screwed-in ring bolts before transport. They aredesigned for the weight of the low-voltage machine, do not apply extraloads. If necessary, use suitable and adequately dimensioned means oftransport (e.g. rope guides).Remove the shipping brace before commissioning. Reuse it for furthertransports. For storage of low-voltage machines ensure a dry, dust-freeand low-vibration (vrms ≤ 0.2 mm/s) environment (danger of bearingdamage at rest). Measure the insulation resistance beforecommissioning. If the values are ≤ 1 kΩ per volt of rated voltage, drythe winding.4. InstallationEnsure an even surface, solid foot or flange mounting and exactalignment if a direct clutch is connected. Avoid resonances with therotational frequency and double mains frequency which may be causedby the assembly. Turn rotor by hand, listen for unusual slipping noises.Check the direction of rotation when the clutch is not active (observesection 5).Use appropriate tools to mount or remove belt pulleys and clutches(heat generation!) and cover them with a touch guard. Impermissiblebelt tensions must be avoided (technical list).

The machines are half-key balanced. The clutch must be half-keybalanced, too. The visibly protruding part of the key must be removed.If required, provide pipe connections. Mounting positions with shaftend at top must be protected with a cover which avoids the ingressionof foreign particles into the fan. Free circulation of the cooling air mustbe ensured. The exhaust air - also the exhaust air of other machinesnext to the drive system - must not be immediately taken in again.5. Electrical connectionAll operations must be carried out only by qualified and skilledpersonnel when the low-voltage machine is at standstill and when themachine is de-energized and protected against unintentional restart.This also applies to auxiliary circuits (e.g. brake, encoder, separatefan).Check safe isolation from the supply!If the tolerances in EN 60034-1; IEC 34 (VDE 0530-1) - voltage ±5 %,frequency ±2 %, waveform, symmetry - are exceeded, more heat willbe generated and the electromagnetic compatibility will be influenced.

Observe the indications on the nameplate, operating notes, and theconnection diagram in the terminal box.The connection must ensure a continuous and safe electrical supply(no loose wire ends); use appropriate cable terminals. The connectionto the PE conductor must be safe. The plug-in connector must bescrewed up tightly (to stop).The clearances between bare, live parts and earth must not fall below:8 mm at Vrated ≤ 550 V, 10 mm at Vrated ≤ 725 V, 14 mm atV rated ≤ 1000 V.The terminal box must be clean and dry; foreign particles, dirt andmoisture affect operation. All unused cable entries and the box itselfmust be sealed against dust and water. For the trial run without outputelements, lock the key. Check brake operation before thecommissioning of low-voltage machines with brakes.6. OperationVibration severities vrms ≤ 3.5 mm/s (Prated ≤ 15 kW) or 4.5 mm/s(Prated > 15 kW) are acceptable when the clutch is activated. Ifdeviations from normal operation occur, e.g. increased temperature,noise, vibration, find the cause and, if necessary, contact themanufacturer. Switch-off the machine in problematic situations.If the drive is exposed to dirt, clean it regularly.Do not switch-off the protection devices, not even for trial runs.Integrated temperature sensors do not provide full protection. Ifnecessary, limit the maximum current. Connect the function blocks tothe option switch-off after several seconds of operation at I > Irated,especially if blocking may occur.Shaft seals and bearings have a limited service life.Regrease the bearings using the relubrication facility while thelow-voltage machine is running. Observe the saponification number. Ifthe grease drain hole is sealed with a plug (IP54 drive end; IP23 driveend and non-drive end), remove the plug before commissioning. Sealthe bore holes with grease. Replace the prelubricated bearings(2Z-bearings) after approx. 10.000 h - 20.000 h, at the latest howeverafter 3 - 4 years. Observe the manufacturer’s instructions.

Safety information

4 BAMDXX EN 2.0

2.2 Safety and application instructions for Lenzecontrollers

(to: Low-Voltage Directive 73/23/EEC)

1. GeneralDuring operation, drive controllers may have live, bare, in some casesalso movable or rotating parts, as well as hot surfaces, depending ontheir type of protection.Non-authorized removal of the required cover, inappropriate use,incorrect installation or operation create the risk of severe injury topersons or damage to material assets.For further information see the documentation.All operations concerning transport, installation, and commissioning aswell as maintenance must be carried out by qualified, skilled personnel(IEC 60364 or CENELEC HD 384 or VDE 0100 and IEC report 664 orVDE 0110 and national regulations for the prevention of accidents mustbe observed).According to the safety information, qualified and skilled personnel arepersons who are familiar with the installation, assembly,commissioning and operation of the product and who have thequalification necessary for the job.2. Application as directedDrive controllers are components which are designed for theinstallation into electrical systems or machinery.When installing the unit into machines, commissioning of the controller(i.e. operation as directed) is prohibited until it is proven that themachine corresponds to the regulations of the EC Directive 98/37/EC(Machinery Directive); EN 60204 (VDE 0113).Commissioning (i.e. application as directed) is only allowed when theunits comply with the EMC Directive (89/336/EEC).The controllers meet the requirements of the Low-Voltage Directive73/23/EEC. The harmonized standards EN 50178 (VDE 0160) / EN60439-1 (VDE 0660-500) and EN 60146 (VDE 0558) are applicable tothe controllers.The technical data as well as the connection conditions can beobtained from the nameplate and the documentation. They must beobserved in all cases.3. Transport, storageThe notes on transport, storage and appropriate handling must beobserved.The climatic conditions according to EN 50178 (VDE 0160) must beobserved.

4. InstallationThe units must be installed and cooled according to the regulationsgiven in the corresponding documentation.The controllers must be protected from inappropriate loads. Particularlyduring transport and handling, components must not be bent and/orinsulation distances must not be changed. Avoid touching of electroniccomponents and contacts.Controllers contain electrostatically sensitive components, which caneasily be damaged by inappropriate handling. Electrical componentsmay not be damaged or destroyed mechanically (health risks arepossible!).5. Electrical connectionWhen working on live controllers, the valid national regulations for theprevention of accidents (e.g. VBG 4) must be observed.Carry out the electrical installation in compliance with thecorresponding regulations (e.g. cable cross-sections, fuses, PEconnection). More detailed information is given in the correspondingdocumentation and must be observed.Notes about wiring according to EMC regulations, such as shielding,grounding, filters and cable routing, are included in the documentationfor the controllers. These notes also apply to CE-marked controllers.The compliance with limit values required by the EMC legislation is theresponsibility of the manufacturer of the machine or system.6. OperationIf necessary, systems including controllers must be equipped withadditional monitoring and protection units according to the applicablesafety regulations, e.g. law on technical tools, regulations for theprevention of accidents, etc. Modifications to the controllers by meansof the operating software are allowed.After disconnection of the controllers from the supply voltage, live partsof the controller and power connections may not be touchedimmediately, because of possibly charged capacitors. For this observethe corresponding notes on the controller.During operation all covers and doors must be closed.7. Maintenance and serviceObserve the manufacturer’s documentation.

These safety notes must be kept!The product-specific safety and application notes given in these Operating Instructions must also be observed!

Safety information

5 BAMDXX EN 2.0

2.3 Residual hazards

Operator’s safety The motor surfaces can be very hot. Danger of burning when touched!l If necessary, provide protection against contact.If the motor is inverter driven, high-frequency voltages may be capacitively transferred to the motor housing.l Ensure careful earthing of the motor housing.Danger of unintended starts or electric shocks.l Connections must only be made when no voltage is applied and the motor is at standstill.

Controller protection Integrated temperature sensors do not provide full protection for the machine.l If necessary, limit the max. current; connect the function blocks with the option switch-off after several seconds of operation at

I > Irated (especially if blocking might occur).Integrated brakes cannot be used as safety brakes.l Torque reduction is possible.Fuses do not protect the motor.l Use current-dependent motor protection switches for an average switching frequency.l Use integrated temperature switches for a high switching frequency.Excessive torques may result in demagnetization or breakage of the motor shaft.l Do not exceed the max. torques indicated in the catalog.Shear forces from the motor shaft are possible.l Exact alignment of motor shaft and shaft of driving machine required.

Protection against fire Protection against firel Avoid contact with inflammable material or substances.

2.4 Layout of the safety information

All safety notes given in these Operating Instructions have the same layout:

Signal word (characterises the severity of danger)

Note (describes the hazards and informs how to avoid them)

Icons used Signal wordsWarning of damageto persons

Warning of hazardouselectrical voltage

Danger! Warns of impending danger .Consequences if disregarded:Death or very severe injuries

Warning of a generaldanger

Warning! Warns of potential, very hazardous situations .Possible consequences if disregarded:Death or very severe injuries

Caution! Warns of potential, hazardous situations .Possible consequences if disregarded:Light or minor injuries

Warning of damageto material

Stop! Warns of potential damage to material .Possible consequences if disregarded:Damage of the controller/motor/drive system or its environment

Other notes Note! This note designates general, useful notes.If you observe it, handling of the controller/motor/drive system will be madeeasier.

Technical data

6 BAMDXX EN 2.0

3 Technical data

3.1 General data/application conditions

Field ValuesMounting positions Applicable in all mounting positions Vertical mounting positions to DIN-IEC 34 part

7 are possible if they correspond to thedesigns.

Type of protection See nameplateThermal class F (155 °C) to DIN-IEC 34 / VDE 0530 If the limit temperature is exceeded, the

insulation will be damaged or destroyed.

Tropical insulation Cannot be warrantedPermissible temperatureranges

DesignsPermissible temperatureranges

l Non-ventilated or with self-ventilation,without brake or with spring-operatedbrake

-20 °C ... +40 °C without power derating

l With permanent magnet brake -10 °C ... +40 °C without power deratingl With separate fan, without permanent

magnet brake-15 °C ... +40 °C without power derating

Permissible installationheight h

h ≤ 1000 m a.m.s.l.1000 m a.m.s.l. h ≤ 5000 m a.m.s.l.

without power deratingwith power derating

Approvals CE Low-Voltage DirectivePermissible voltage 1.5 kV peak value 5 kV/µs voltage rise *)

*) See catalog.

3.2 Rated data

Rated data Values NoteMotor, separate fan See the corresponding nameplate.

Further data can be obtained from the catalog.The indicated values apply to the following:l MDXK, MDFQ servo motors; for operation together

with Lenze 9300 servo inverter on a 400 V mainsand an inverter clock frequency of 8 or 16 kHz.

l MDXM modular three-phase AC motors; for mainsoperation or together with Lenze frequencyinverters from 4 to 16 kHz.

Maximum motor speed[min-1]

(mechanical limit)

l MDXKS synchronous servo motors: 5000 ... 8000l MDXKA asynchronous servo motors: 8000l MDFQA asynchronous servo motors: 4500 ... 5000l Modular three-phase AC motors: 4500

Weights See catalog. The indicated values are for guidance and help withthe selection.

Torques See catalog. l If the torques are too high, the motor may bedemagnetized or the shaft my break.

l Max. torques indicated in the catalog must beobserved.

l Corresponding torques can be achieved byappropriate motor/controller combinations.

Axial forces See catalog. If the forces are too high, the bearing life will beshortened.

Observe the permissible forces indicated in theRadial forces See catalogshortened.l Observe the permissible forces indicated in the

catalog.

Technical data

7 BAMDXX EN 2.0

Note!MDXKA / MDFQA asynchronous servo motors and MDXMA modular three-phase AC motors canalso be connected to other inverters. Please observe the minimum clock frequency indicated in thetable. Depending on the modulation and control characteristic of the inverter, the temperaturemonitoring of the motor might be activated. If so, reduce the power.

Motor type Minimum inverter clock frequency [kHz]MDXKA 056 ... 080 4MDXKA 090 ... 112 8MDFQA 8MDXMA 4

3.3 Sound pressure level

Motor type Fan operation Sound pressure level NotesFan operation[db (A)]

Notes

MDSKA 056 60 Sound pressure level, A-weightingDistance = 1 mMDSKA 071

MDFKA 071 x6062

Sound pressure level, A-weightingDistance = 1 mIdling motor, U = 3400 min-1

MDSKA 080MDFKA 080 x

6264 Operation with 9300 servo inverter or 8200

frequency inverterMDSKA 090MDFKA 090 x

6366

frequency inverterInverter clock frequency: 8 or 16 kHz

MDSKA 100MDFKA 100 x

6972

MDSKA 112MDFKA 112 x

7275

MDFQA 110 x 81MDFQA 112 x 84MDFQA 132 x 87MDFMA x 70

Note!The noise generated by motors with a separate fan can be reduced if they are connected to 9300-servos:

l If the application does not require ventilation through a separate fan during the wholeoperating time (e.g. intermittent operation with long cooling periods), the separate fan shouldonly be connected if the winding temperature exceeds a certain limit.

l Our recommendation: from 120 °C upwards

Installation

8 BAMDXX EN 2.0

4 Installation

4.1 Mechanical installation

4.1.1 Transport, storage and installation

Transport l Use appropriate means of transport or hoists.– Ensure safe mounting and fixing: Some motors are equipped with eyelets for safe fixing to hoists

(weights: see catalog).l Ensure vibration-free transport of motors.l Avoid heavy shocks.

Storage location l Free of vibrations– If vibrations cannot be avoided, the rotor must be rotated in the bearings once a week.

l Dry in an atmosphere free from aggressive particles or gases.l Dust-freel Without sudden temperature changesl All steel parts are corrosion protected as delivered. Do not remove the protection!

Check it every three month and renew it if necessary.Installation l Provide fixings which correspond to the mounting position, weight and torque of the motor.

l The foot and flange surfaces of the motor must be fitted evenly before the motor is fastened.– Incorrect motor alignment shortens the service life of bearings and transmission elements.

l Clutches and other transmission elements must be attached according to instructions.– Shocks on the shafts can cause bearing damage.

l Do not exceed the ambient temperature permissible during operation (see chapter 3.1.).

4.1.2 Mounting of attachments

Follow these Instructions! Please note that the warranty and liability only apply to approvedinstallations, fittings and retrofittings.

l If necessary, remove the corrosion protection from the shaft ends of new motors. Take specialcare that the solvents do not damage the bearing!

l The mounting dimensions are standard dimensions according to IEC 34.

l Attach transmission elements:– Avoid shocks!– Use the center bore in the motor shaft (to DIN 332, design D) to attach the transmission

elements.– Tolerances of the shaft ends

≤ ∅ 50 mm: ISO k6, ! ∅ 50 mm: ISO m6.

Installation

9 BAMDXX EN 2.0

4.2 Electrical connection

4.2.1 Important notes

General l Observe the notes in the terminal box of the motor.l Ensure correct layout of the terminal bridges.l Screw connections must be tightened.l Connect the PE conductor to the grounding screw.l Use a strain relief for the connection cable.

Voltage supply Servo motors l Servo motors must be supplied by inverters.l Connect the encoders mounted to the motor to the corresponding connections of the

inverter.Separate fan (optionally) l AC voltage supply to nameplate of the fanHolding brake (optionally) l DC voltage supply to nameplate of the brake, or supply with AC voltage through a

rectifier.l With bridge rectifiers, brakes for 205 V can be supplied from the 230 V mains, brakes

for 103 V can be supplied from the 115 V mains.l Do not supply brakes from the AC mains using half-wave rectifiers

Inverter operation l Observe the connection information given in the corresponding Operating Instructions.l Ensure that motor and inverter are assigned correctly.l Take special care for speed limits and winding load capacities. *

Cable cross-sections l The connection cables must be selected carefully to avoid overheating.l A min. cross-section to DIN 57100 must be ensured. The cables must be protected

appropriately (see table)Motor protection Protection against overload l Established current-dependent starting circuit breakers for average switching.

– Setting of the rated current indicated on the nameplate.l For very high switching rates: Use Lenze three-phase AC motors equipped with

thermistors or thermostats in the winding.– The thermostats are available as normally-open or normally-closed contacts for the

winding. The activation temperature is freely adjustable.Motor cables l No protection possible through the of temperature sensor or PTC thermistor in winding

– Take measures according to DIN 57100 / VDE 053.Inverter operation l Because of the current and voltage conversion, the output current can be much

higher than the input current.– The motor cable cannot be protected by the mains input fuses of the inverter. Take

measures according to DIN 57100 / VDE 053.

* Voltage limits: 1.5 kV peak value, 5 kV/µs voltage rise; for further information see the catalog.

Installation

10 BAMDXX EN 2.0

Current capacities of insulated cables and protection devices 1) (DIN 57100 / VDE 010 T 523)Ratedcross-

group 1 2) group 2 3) group 3 4)Ratedcross-section Cable Protection device 5) Cable Protection device 5) Cable Protection device 5)section

q Ir [A] Ir [A] Ir [A] Ir [A] Ir [A] Ir [A]q

[mm2] Cu Al Cu Al Cu Al Cu Al Cu Al Cu Al0.751.01.5

–1115

–––

–610

–––

121518

–––

61010

–––

151924

–––

101020

–––

2.54.06.0

202533

152026

162025

101620

263444

202735

202535

162025

324254

263342

253550

202535

101625

456183

364865

355063

253550

6182108

486485

506380

355063

7398129

5777103

6380100

506380

355070

103132165

81103–

80100125

6380–

135168207

105132163

100125160

80100125

158198245

124155193

125160200

100125160

95120150

197235–

–––

160200–

–––

250292335

197230263

200250250

160200200

292344391

230268310

250315315

200200250

Maximum ambient temperature: 30 °C

1) With adjustable protection devices (motor circuit breakers, power contactors), set the device to the rated conductor current. Line protectionswitch to DIN 57641 / VDE 0641 / CEE 19 and line protection fuses to DIN 57636 / VDE 0636 (see table).

2) One or several single-core cables routed in pipes.

3) Multi-core cables, e.g. light plastic-sheathed cables, hard-metal-sheathed cables, lead-sheathed cables, flat webbed cables, flexible cables.

4) Single-core cables routed in air with a space of a least their own diameter between cores.

5) With adjustable protection devices (motor circuit breaker, power contactors) set the device to the rated conductor current.Line protection switch to DIN 57641 / VDE 0641 / CEE 19 and line protection fuses to DIN 57636 / VDE 0636 (see table).

Conduit thread connections and connection studs

Motor type Power connection Encoder/fan connectionConduit thread connections Connection stud/connection terminal Conduit thread connections

MDSK 056 1xPG13.5 + 1xPG11 M4 or 0.08 ... 2.5 mm2 1xPG13.5 + 1xPG11 + 3xPG7MDXK 071 1xPG13.5 + 1xPG11 M4 or 0.08 ... 2.5 mm2 1xPG13.5 + 1xPG11 + 3xPG7MDXK 080 1xPG13.5 + 1xPG11 M4 or 0.08 ... 2.5 mm2 1xPG13.5 + 1xPG11 + 3xPG7MDSK 090 1xPG13.5 + 1xPG11 M4 or 0.08 ... 2.5 mm2 1xPG13.5 + 1xPG11 + 3xPG7MDXK 100 2xPG16 M5 2xPG16 + 3xPG7MDXK 112 1xPG21 + 1xPG16 M5 2xPG16 + 3xPG7

Power connection Fan connectionMDFQ 100 2xPG29 + 1xPG9 M6 1xPG9MDFQ 112 2xPG36 + 2xPG9 M8 1xPG9MDFQ 132 4xPG29 + 2xPG9 * M12 1xPG9

* For connection of parallel shielded cables, e.g. 3 St 4 x 35 mm2or 4 St 4 x 25 mm2

4.2.2 Wiring according to EMC

The wiring according to EMC is described in detail in the Operating Instructions for the Lenze 9300servos and the Lenze 8200 frequency inverters.

Installation

11 BAMDXX EN 2.0

4.2.3 Connection diagrams

Stop!Tighten the union nut of the plug-in connectors.

Power connection for MDXK 036 ... 090, MDXK 100 ... 112 servo motors

Plug-in connector

MDXK 036 ... 090 MDXK 100 ... 112

Contact Name Meaning

12

Y1Y2

Holding brake +Holding brake -

PE PE PE conductor

456

VVW

Power phase UPower phase VPower phase W

Terminal box

MDXK 036 ... 090 MDXK 100 ... 112

Terminal Name Meaning

Y2

S1

S2

U

V

W

Y1

Y1

S1/T1/P1 S2/T2/P2

PEU

1 2 3

4

7

6

9

5

8Y2

V W

S1

S2

Y1

PEU

1 2 3

4 65

Y2

V W

V U1 Motor winding phase U

Y2

S1

S2

U

V

W

Y1

Y1

S1/T1/P1 S2/T2/P2

PEU

1 2 3

4

7

6

9

5

8Y2

V W

S1

S2

Y1

PEU

1 2 3

4 65

Y2

V W

V V1 Motor winding phase V

Y2

S1

S2

U

V

W

Y1

Y1

S1/T1/P1 S2/T2/P2

PEU

1 2 3

4

7

6

9

5

8Y2

V W

S1

S2

Y1

PEU

1 2 3

4 65

Y2

V W

W W1 Motor winding phase W

Y2

S1

S2

U

V

W

Y1

Y1

S1/T1/P1 S2/T2/P2

PEU

1 2 3

4

7

6

9

5

8Y2

V W

S1

S2

Y1

PEU

1 2 3

4 65

Y2

V W

Y1 +Holding brake

Y2

S1

S2

U

V

W

Y1

Y1

S1/T1/P1 S2/T2/P2

PEU

1 2 3

4

7

6

9

5

8Y2

V W

S1

S2

Y1

PEU

1 2 3

4 65

Y2

V W

Y2 -Holding brake

Y2

S1

S2

U

V

W

Y1

Y1

S1/T1/P1 S2/T2/P2

PEU

1 2 3

4

7

6

9

5

8Y2

V W

S1

S2

Y1

PEU

1 2 3

4 65

Y2

V WS1Thermostat

Y2

S1

S2

U

V

W

Y1

Y1

S1/T1/P1 S2/T2/P2

PEU

1 2 3

4

7

6

9

5

8Y2

V W

S1

S2

Y1

PEU

1 2 3

4 65

Y2

V W

S2Thermostat

Y2

S1

S2

U

V

W

Y1

Y1

S1/T1/P1 S2/T2/P2

PEU

1 2 3

4

7

6

9

5

8Y2

V W

S1

S2

Y1

PEU

1 2 3

4 65

Y2

V W

T1 + KTY Temperature sensor +

Y2

S1

S2

U

V

W

Y1

Y1

S1/T1/P1 S2/T2/P2

PEU

1 2 3

4

7

6

9

5

8Y2

V W

S1

S2

Y1

PEU

1 2 3

4 65

Y2

V W

T2 - KTY Temperature sensor -Y2

S1

S2

U

V

W

Y1

Y1

S1/T1/P1 S2/T2/P2

PEU

1 2 3

4

7

6

9

5

8Y2

V W

S1

S2

Y1

PEU

1 2 3

4 65

Y2

V W

P1 PTCPTC thermistor

Y2

S1

S2

U

V

W

Y1

Y1

S1/T1/P1 S2/T2/P2

PEU

1 2 3

4

7

6

9

5

8Y2

V W

S1

S2

Y1

PEU

1 2 3

4 65

Y2

V W

P2 PTCPTC thermistor

Y2

S1

S2

U

V

W

Y1

Y1

S1/T1/P1 S2/T2/P2

PEU

1 2 3

4

7

6

9

5

8Y2

V W

S1

S2

Y1

PEU

1 2 3

4 65

Y2

V W

Installation

12 BAMDXX EN 2.0

Power connection for MDFQA 100, MDFQA 112/132 servo motors, MDX 11

Terminal box

MDFQA 100 MDFQA 112/132, MDX 11

Star connection

Terminal Name Meaning

L1

PE (U1)

1 2 3

4 65

L2 L3

(V1) (W1)

L1

PE (U1)

(U2)

1 2 3

4 65

L2 L3

(V1)

(V2)

(W1)

(W2)

L1 U1 Motor winding phase U

L1

PE (U1)

1 2 3

4 65

L2 L3

(V1) (W1)

L1

PE (U1)

(U2)

1 2 3

4 65

L2 L3

(V1)

(V2)

(W1)

(W2)

L2 V1 Motor winding phase V

L1

PE (U1)

1 2 3

4 65

L2 L3

(V1) (W1)

L1

PE (U1)

(U2)

1 2 3

4 65

L2 L3

(V1)

(V2)

(W1)

(W2)

L3 W1 Motor winding phase W L1

PE (U1)

1 2 3

4 65

L2 L3

(V1) (W1)

L1

PE (U1)

(U2)

1 2 3

4 65

L2 L3

(V1)

(V2)

(W1)

(W2)

PE PE conductor - motorhousing Delta connection

S1

Thermostat

L1

PE (U1)

(U2)

1 2 3

4 65

L2 L3

(V1)

(V2)

(W1)

(W2)

S2Thermostat

L1

PE (U1)

(U2)

1 2 3

4 65

L2 L3

(V1)

(V2)

(W1)

(W2)

T1 + KTY Temperature sensor +

L1

PE (U1)

(U2)

1 2 3

4 65

L2 L3

(V1)

(V2)

(W1)

(W2)

T2 - KTYL1

PE (U1)

(U2)

1 2 3

4 65

L2 L3

(V1)

(V2)

(W1)

(W2)

S1

T1

S2

T2

S1

T1

S2

T2

Fan connection

Plug-in connector (only as of motor frame size 071, axis height 65)

Contact Name Meaning

1 not assigned

2 PE PE conductor

34 not assigned

AB6.5

L1r Winding - fan

CD not assigned

Installation

13 BAMDXX EN 2.0

Resolver connection

Plug-in connector

Contact Name Meaning

12

+ Ref- Ref

Transformer windings(Reference windings)

3 not assigned

45

+ Cos- Cos Stator windings - cosine

67

+ Sin- Sin Stator windings - sine

8910

not assigned

1112

+ KTY- KTY

Temperature sensor +Temperature sensor -

Terminal box

Terminal Name Meaning

B1

B2

B3

B4

T1

T2

S1

S2

B5

B6

B7

B8

U1

U2

Y2

Y1*

T1 + KTY Temperature sensor +

B1

B2

B3

B4

T1

T2

S1

S2

B5

B6

B7

B8

U1

U2

Y2

Y1*

T2 - KTY Temperature sensor -

B1

B2

B3

B4

T1

T2

S1

S2

B5

B6

B7

B8

U1

U2

Y2

Y1*

S1Thermostat

B1

B2

B3

B4

T1

T2

S1

S2

B5

B6

B7

B8

U1

U2

Y2

Y1*

S2Thermostat

B1

B2

B3

B4

T1

T2

S1

S2

B5

B6

B7

B8

U1

U2

Y2

Y1*

B1 + RefResolver

B1

B2

B3

B4

T1

T2

S1

S2

B5

B6

B7

B8

U1

U2

Y2

Y1*

B2 - RefResolver

B1

B2

B3

B4

T1

T2

S1

S2

B5

B6

B7

B8

U1

U2

Y2

Y1*

B3 not assigned

B1

B2

B3

B4

T1

T2

S1

S2

B5

B6

B7

B8

U1

U2

Y2

Y1*

B4 + cos

B1

B2

B3

B4

T1

T2

S1

S2

B5

B6

B7

B8

U1

U2

Y2

Y1*

B5 - cosResolver

B1

B2

B3

B4

T1

T2

S1

S2

B5

B6

B7

B8

U1

U2

Y2

Y1*

B6 + sinResolver

B1

B2

B3

B4

T1

T2

S1

S2

B5

B6

B7

B8

U1

U2

Y2

Y1*

B7 - sin

B1

B2

B3

B4

T1

T2

S1

S2

B5

B6

B7

B8

U1

U2

Y2

Y1*

B8 not assigned

B1

B2

B3

B4

T1

T2

S1

S2

B5

B6

B7

B8

U1

U2

Y2

Y1*

U1 L1Separate fan

B1

B2

B3

B4

T1

T2

S1

S2

B5

B6

B7

B8

U1

U2

Y2

Y1*

U2 NSeparate fan

B1

B2

B3

B4

T1

T2

S1

S2

B5

B6

B7

B8

U1

U2

Y2

Y1*Y2* -

Holding brake

B1

B2

B3

B4

T1

T2

S1

S2

B5

B6

B7

B8

U1

U2

Y2

Y1*

Y1* +Holding brake

B1

B2

B3

B4

T1

T2

S1

S2

B5

B6

B7

B8

U1

U2

Y2

Y1*

*When using the version “with integrated rectifier”, the voltage supply for the brake is applied directly to the rectifier.With this version, the terminals Y1 and Y2 are not provided on the terminal strip.

Installation

14 BAMDXX EN 2.0

Connection of incremental encoder / sin-cos absolute value encoder

Plug-in connector

Contact Name Meaning1 B Track B / + SIN

23

AA

Track A inverse / - COSTrack A / + COS

45

+ 5 VGND

Supply + 5 V / + 8 VMass

67

ZZ

Zero track inverse / - RS485Zero track / + RS485

8 not assigned

9 B Track B inverse / - SIN

10 not assigned

1112

+ KTY- KTY

Temperature sensor +Temperature sensor -

Terminal box

Terminal Name Meaning

B3

B4

B5

B6

T1

T2

B1

B2

B7

B8

B10

U1

U2

T1 + KTY Temperature sensor +

B3

B4

B5

B6

T1

T2

B1

B2

B7

B8

B10

U1

U2

T2 - KTY Temperature sensor -

B3

B4

B5

B6

T1

T2

B1

B2

B7

B8

B10

U1

U2

B1 + UB Incremental encoder supply +

B3

B4

B5

B6

T1

T2

B1

B2

B7

B8

B10

U1

U2

B2 ± ov Incremental encoder supply -

B3

B4

B5

B6

T1

T2

B1

B2

B7

B8

B10

U1

U2

B3 A Incremental encoder track A B3

B4

B5

B6

T1

T2

B1

B2

B7

B8

B10

U1

U2

B4 - A Incremental encoder track A inverseB3

B4

B5

B6

T1

T2

B1

B2

B7

B8

B10

U1

U2

B5 B Incremental encoder track B

B3

B4

B5

B6

T1

T2

B1

B2

B7

B8

B10

U1

U2

B6 - B Incremental encoder track B inverse

B3

B4

B5

B6

T1

T2

B1

B2

B7

B8

B10

U1

U2

B7 r Incremental encoder track C (zero track)

B3

B4

B5

B6

T1

T2

B1

B2

B7

B8

B10

U1

U2

B8 - N Incremental encoder track C (zero trackinverse)

B3

B4

B5

B6

T1

T2

B1

B2

B7

B8

B10

U1

U2

B10 Shield Incremental encoder shield

B3

B4

B5

B6

T1

T2

B1

B2

B7

B8

B10

U1

U2U1 L1+

Separate fan

B3

B4

B5

B6

T1

T2

B1

B2

B7

B8

B10

U1

U2U2 NSeparate fan

B3

B4

B5

B6

T1

T2

B1

B2

B7

B8

B10

U1

U2

Commissioning

15 BAMDXX EN 2.0

5 Commissioning

5.1 Before you switch on

Check the following before commissioning for the first time, commissioning after a longer standstill,maintenance or repair of the motor:

l Are the screw connections of all mechanical and electrical elements fastened tightly?

l Is the ventilation of the cooling air unimpeded and free?

l Is the overheating protection (temperature monitoring evaluation) o.k.?

l Is the direction of rotation of the separate fan correct?

l Does the parameter setting of the controller match the motor?(See corresponding Operating Instructions)

Note!If the application requires extremely high control accuracy, the phase error of the resolver can becompensated:

l Use the resolver data indicated on the nameplate for parameter setting of the controller.

l Are the electrical connections o.k.?

l Is the motor connection in phase?

l For gearboxes with ventilation: Ensure ventilation!

l Is protection provided against contact with rotating elements or hot surfaces?

5.2 Commissioning

l Commission the drive system according to the Operating Instructions for the controller.

l Reduce the max. current for commissioning , e.g. to the rated machine current.

5.3 Operational test

l Check all functions of the drive after commissioning:– Direction of rotation of the motor.

If the motor does not rotate in the required direction, swap two phases.– Torque behaviour and current consumption.– Braking.– Output signal of the tacho generator.

l In the event of faults or irregularities: See chapter 7.

During operation

16 BAMDXX EN 2.0

6 During operationWe recommend that the motor is regularly inspected during operation. Check the drive every 50operating hours. Take special care if the following occurs:

l Unusual noises

l Extremely hot surfaces

l Oil spots or leakages

l Irregular running

l Extreme vibrations

l Loose fixing elements

l Damaged electrical cables

l Impeded heat dissipation– Deposits on the drive system and in the cooling channels

In the event of irregularities or faults: see table in chapter 7.

Troubleshooting and fault elimination

17 BAMDXX EN 2.0

7 Fault detection and eliminationIf faults occur during operation, take the following steps:

l Check the possible cause of the fault by means of the following table.

l Please observe the corresponding chapters in the Operating Instructions for the othercomponents of the drive system.

If the fault cannot be eliminated as described in the table, please contact the Lenze Service.

Danger!l Ensure that no voltage is applied to the drive system while working on it!

l Hot motor surfaces. Observe cooling times!

l Unload motor or secure loads applied to the drive!

Fault Cause RemedyMotor too hot Motor is designed for star connection but

connected in delta.Correct connection

Measurement required;permissible surfacetemperatures:l unventilated motors up to

140 °Cl forced or self ventilated

motors up to 110 °C

Mains voltage is more than 10 % higher orlower than rated motor voltage.A higher voltage is extremely unfavourable formotors with many poles, since the idlingcurrent of these motors almost reaches therated current, even at a normal voltage.

Ensure appropriate mains voltage.

l forced or self ventilatedmotors up to 110 °C Not enough cooling air, blocked air ducts. Ensure unimpeded circulation of the cooling air.

Prewarmed cooling air. Ensure enough fresh cool airOverload; at normal mains voltage the currentis too high and the speed is too low

Use larger drive (power measurement)

Rated operating mode exceeded (S1 to S8 DIN57530)

Adapt the operating mode to the prescribed operating conditions. As determinedby an expert or the Lenze Service for the correct drive.

Cable with poor terminal connection(intermittend single-phase connection!)

Tighten loose contact.

Fuse blown Replace fuseMotor does not start Voltage supply interrupted l Check fault display at the controller

l Check electrical connection (see chapter 4.2)Controller inhibited l Check display at the controller

l Check controller enableFuse blown Replace fuseMotor protection activated Check correct motor protection and adjust it if necessaryMotor contactor is not working, fault in thecontrol

Check control of the motor contactor and elminate the fault

Resolver cable interrupted l Check fault display at the controllerl Check resolver cable

No brake release Check electrical connectionNo brake releaseCheck air gap (see Operating Instructions for the brake)Check the magnetic coil

Drive blocked Check the functionality of the components and if necessary remove foreignparticles

Polarity reversal in motor cable Check electrical connectionMotor stops suddenly and doesnot start again

Only for MDXKS synchronous motor:l Polarity reversal of motor cableorl resolver cable

l Swap two phases of the motor cableorl swap the cables of the resolver connection (+COS/ -COS)

Temperature monitoring is activated l Let motor cool down– Reduce load by longer acceleration times

Overload monitoring of the inverter is activated l Check controller settingsl Reduce load by longer acceleration times

Troubleshooting and fault elimination

18 BAMDXX EN 2.0

Fault RemedyCauseWrong direction of rotation of themotor, correct display at thecontroller

Polarity reversal of motor and resolver cables l Swap two phases of the motor cableandl the connection +COS/-COS of the resolver

Motor rotates slowly in adirection which cannot beinfluenced via the controller

Polarity reversal of motor and resolver cables l Swap two phases of the motor cableorl the connection +COS/-COS of the resolver

Motor does not rotate, gearboxoutput is not running

Defective wheel-hub connection Check the connection, replace the key, if necessary, repair by the manufacturerMotor does not rotate, gearboxoutput is not running Toothing worn out Repair by the manufacturerIrregular running Insufficient shielding of motor or resolver cable Check shielding and grounding (see chapter 4.2)Irregular running

Gain of the controller too high Adjust gains of the controllers (see Operating Instructions for the Controller)Vibrations Insufficiently balanced clutch elements or

machineRebalance

Misalignment of the drive train Realign the machine set, if necessary, check the baseLoose fixing screws Check and tighten screw connections

Running noises Foreign particles inside the motor If necessary, repair by the manufacturerRunning noisesBearing damage If necessary, repair by the manufacturer

Surface temperature > 140 °C Overload of the drive l Check load and, if necessary, reduce load by longer acceleration timesl Check winding temperature (see chapter 8.2.2)

Heat dissipation impeded because of deposits Clean surface and colling ribs of the drive

Maintenance

19 BAMDXX EN 2.0

8 Maintenance/repair

8.1 Maintenance intervals

l In general, the motors are maintenance-free.

l Dirt and deposits must be removed from the drives regularly to avoid overheating.

l We recommend inspecting the drive every 50 operating hours. It is thus possible to detect andremove irregularities and faults in time (see chapter 5.2).

8.2 Maintenance

Stop!l Ensure that no foreign particles get into the motor!

l Ensure that no voltage is applied to the drive system while working on it!

l Disconnect the drive from the voltage supply!

l Hot motor surfaces. Observe cooling times!

l Unload motor or secure loads which are applied to the drive!

8.2.1 Resolver setting - synchronous servo motors

The resolvers of MDXKS synchronous servo motors have a factory setting that ensures trouble-freeoperation without adjustment at the controller.

If the resolver is out of position, e.g. because of changes at the motor, realign the resolver or adjustthe rotor.

l For the rotor adjustment, the motor must be free of load and able to rotate with the controller(see Operating Instructions for the controller).

Procedure:

1. If necessary, release the brake, free the motor shaft ends.

2. Connect the resolver to the controller and determine the current rotor angle (see OperatingInstructions for the controller).

3. Let the DC (< Irated of the motor) flow from phase V (positive connection) to phase W (negativeconnection). Phase U is free of current.

4. Turn the resolver stator so that the controller displays the rotor angle ”0”.

5. Fasten the resolver stator in this position.

Maintenance

20 BAMDXX EN 2.0

8.2.2 Temperature check for servo motors

If the surface temperature is > 140 °C, check the effective winding temperature:

l Measuring: 4-wire resistance measurement at the motor power connection

l The resistance should be measured immediately after switch-off and standstill of the servomotor.

Procedure

1. Disconnect the power plug-in connector X10. For terminal box versions, interrupt the powersupply between inverter and motor.

2. Measure the resistance between the following contacts or terminals:– Plug-in connector X10:

Contacts 4↔5, 5↔6 and 6↔4– Terminal box X11:

Terminals 1↔2, 2↔3 and 3↔1

3. The mean value calculated from the three measured values corresponds to twice the phaseresistance (star connection).– Use the mean values as ROperation and Rcold for the following equation to calculate the

winding temperature Joperation:

Joperation [C] Roperation 255

Rcoldh 235

8.3 Repair

l We recommend that all repairs are carried out by Lenze.

l Spare parts will be delivered on request.

Maintenance

21 BAMDXX EN 2.0

Maintenance

22 BAMDXX EN 2.0

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