Safety InstructionsPrior to performing any work on the unit the user must familiarize himself with the unit.This includes especiallythe knowledge and observance of the safety and waming directions.The pictographs used in this instructionmanual have following meaning:DangerRefers to danger of life by electric current.WarningRefers to possible danger of injury or life.NoteRefers to tips and additional information.1.1ValidityThe information contained in the technical documentation,as well as any user-specific advice in spoken andwritten and through tests,are made to best of our knowledge and information about the application.However,they are considered for infommation only without responsibility.This also applies to any violation of industrialproperty rights of a third-party.Inspection of our units in view of their suitability for the intended use must be done generally by the user.Inspections are particulary necessary,if changes are executed,which serve for the further development oradaption of our products to the applications (hardware,software or download lists).Inspections must be re-peated pletely,even if only parts of hardware,software or download lists are modified.Controlling by Application and use of our units in the target products is outside of our control andthe usertherefore lies exclusively in the area of responsibility of the user.The used semiconductors and ponents of KEB are developed and dimensio-Use under spe-ned for the use in industrial products.If the KEB COMBIVERT is used in machi-nes.which work under exceptional conditions or if essential functions.life-sup-cial conditionsporting measures or an extraordinary safety step must be fulfilled,the necessaryreliability and security must be ensured by the machine builder.1.2QualificationAll operations serving transport,installation and missioning as well as maintenance are to be carried outby skilled technical personnel (observe IEC 364 or CENELEC HD 384 or DIN VDE 0100 and national accidentprevention rules!).According to this manual qualified staff means:those who are able to recognise and judge the possible dangers based on their technical training andexperiencethose with knowledge of the relevant standards and who are familiar with the field of power transmission(VDE 0100,VDE 0160 (EN 50178),VDE 0113 (EN 60204)as well as the appropriate regulations for yourarea.KEB electronics ponents contain dangerous voltages which can cause deathorserious injury.In operation,drive converters,depending on their degree ofDanger by highprotection,may have live,uninsulated,and possibly also moving and hotsurfaces.voltageIn case of inadmissible removal of the required covers,of improper use,wronginstallation or maloperation,there is the danger of serious personal injury anddamage to property.GB-4Encoder Interface UVW /TTL InputKEB2.Product DescriptionFigure 1:Encoder interface 2MF5280-7008 Figure 2:Encoder interface 1MF5280-7008TA-1011111X3BX3AX3BX3AChannel 2Channel 1Channel 2Channel 1TTL inputUWTTL inputUVW2.1GeneralThe available encoder interface includes an input for the connection of a UVW encoder,as well as an input for the connection of incremental encoders with TTL level.The instruc-tion covers the installation of the interface card,the connection as well as the start-up of asuitable encoder.Further information and the parameter adjustments are described in theapplication manual for the inverter/servo.2.2Material numberxMF5K8GZ☒☒☒ZOption,spare partF5 Series1MApplicable for housing size D,E(circuit board 1MF5280-7008)2MApplicable for housing size G(circuit board 2MF5280-7008)GB-5Encoder Interface UVW TTL Input2.3Mechanical installationAll kind of works on the inverter may be carried out by authorized personnel in accordancewith the EMC and safety rules only.Switch inverter de-energized and await capacitor discharge time·Pull off operator·Remove plastic cover·Remove fixing boltFix interface board beginning from the socket connector straightly·Screw in fixing bolt·Attach plastic cover3.Description of the Interface3.1Voltage supplyFigure 3.1Voltage supply of control and encoder interfacesUint24VDCX2AInternal voltage supply of COMBIVERT.Uext140mAControl terminal strip(X2A)of the COMBIVERT withexternal voltage supply 24...30 DCV.X3AVoltage output of encoder interfaces X3A and X3B for24V24Vencoder supply.5VCurrent I reduces itself by draw current to the 5V outputin accordance with the following formula:5,2VX3B24V5V24V5VVoltage output for encoder supply.5,2V are obtainedfrom the 24V voltage.400mATotal for both encoder interfacesUintGB-6Encoder Interface UVW /TTL InputKEB3.2Channel 1X3ASocket SUB-D15Interface typeUVWInput signals5V TTL according to RS-422/-485Inputs incremental tracksA,B and N with the respective inverted signalsAbsolute trackBlock mutation tracks U,V,WLimiting frequency200kHzIncrements per revolution1...4096 inc (remendation 2500 inc for speed upto4500rpm)Input resistance120250m,the value is additionally limited by the signal fre-Max.line lengthquency,cable capacity and supply voltage.3.2.1Description of the socket X3AFigure 3.2.1 Socket X3AAttention Plug connector only when COMBI-VERT and supply voltage are switched off!PINNameDescription1A+Incremental encoder input track A2A-Differential signal to A+3B+4B-Differential signal to B+5N+Input zero track6NDifferential signal to N+7U+Block mutation track UUDifferential signal to U+9V+Block mutation track V10V-Differential signal to V+11W+Block mutation track W12W-135VVoltage output 5V14COMReference potential for voltage supply15GB-7Encoder Interface UVW/TTL Input3.22Input signals channel 13.2.2.1Signal tracksTracks A and B are incremental signals with max.4096 increments per revolution.The zerosignal of track N is not evaluated.Figure 1:Signal tracks A+and B++A2.5VCOM0.0,5V-A2.5VCOM0.0,5V+B2..5VCOM0..0,5V-B2.5VCOM0.0,5VtFigure The block mutation signals of tracks U,V,W are three absolute tracks;In2:view of the coupling (fixing)clockwise rotation.120°40°80°10°GB-8Encoder Interface UVW /TTL InputKEB3.2.2.2 Position evaluationThe levels of the U,V,W signals are measured after switching on and thus the absoluteposition of the encoder is determined within an electrical revolution of the motor (el.revo-lution of the absolute tracks UVW).This position can maximally vary with 30 of the electricalrevolution.The current position is first set to this start position.If the motor starts to turn and the first rising edge at the U,V or W track is overdriven,theexact absolute position is determined and the current position is corrected to this value.Only the rising edge of the W track is evaluated for the position correction during normaloperation.The zero signal is not evaluated for position correction and positioning.Only the encoderbreakage recognition uses the error signal of the track.If the zero signal is not recognizedduring the initialization of the encoder,it is considered as not connected.The pole-pair number of motor and encoder (the periods of the UW tracks)must beequal.After switching on the pole-pair number and the number of increments of the encoder areexamined with the adjustments of the control board.During the first revolution of the enco-der the number of increments per revolution and the periods of the UVW tracks are takenin account and after this revolution it is decided whether the adjustment corresponds to theencoder.The interface status displays value 70 if this is not the case.3.2.2.3Encoder breakage recognition channel 1For a monitoring of the encoder and the encoder cable to channel 1 each signal track ismonitored.The monitoring is switched on/off with parameter Ec.42(Ec.20 up to V2.8).Theencoder breakage recognition triggers anerror!encoder change"(value 35),if the voltagebetween two signal pairs is smaller than 625mV.Value 68 is displayed in parameter Ec.37"enc.1 encoder status".3.2.3Encoder line lengthMaximum encoder line length corresponding to the voltage drop caused by the cable resis-tance:U-UminEncoder cable lengthlmax·2·Rmax.encoder current Imax:see encoder descriptionEncoder voltage U:Voltage outputmin.signal voltage Umin:see encoder descriptione.g.encoder cable resistance R:0,0362/m at 0,5mm2The maximum line length is additionally limited by the encoder frequency and cable capa-city.3.2.4Tested encodersThe following encoders have been tested by KEB on it application:Heidenhain ERN 423However,this does not restrict the use of rotary encoder with same specifications of othermanufacturers.GB-9Encoder Interface UVW/TTL Input3.2.5Connection of the encoderEncoder cable double-shielded and twisted in pairsConnect exterior shielding at both ends to PE/GNDConnect interior shielding at one side to GNDDo not connect exterior and interior shieldingFigure 2.2.5 Connection of the encoderSocket X3APINDescriptionA+2A3B+:B5N+6N7U+8UV+10V11W+12W-135V14COMHousingtotal shieldingGB-10Encoder Interface UVW /TTL InputKEB3.3Channel 23.3.1SpecificationsX3BTerminal strip 8-pole or socket SUB-D9Interface typeIncremental encoder inputInput signals5V TTL according to RS485Inputs tracksA,B and N with the respective inverted signalsLimiting frequency200kHzIncrements per revolution1...16383inc(remendation 2500 inc for speed upto4500rpmInput resistance1502Max.line length50m,the value is additionally limited by the signal fre-quency,cable capacity and supply voltage.3.3.2Description of X3BFigure 3.3.2 X3B as socket or terminal strip4。。。。。。。。12345678Figure 1Figure 2PINFigu-Figu-NameDescriptionre 1re211A+23B+35N+Input zero track475VVoltage output 5V524VVoltage output 20...30V62A-Differential signal to A+74B-Differential signal to B+86N-Differential signal to N+98COMReference potential for voltage supplyGNDConnection for shield at connector housing is directly connec-ted with the inverter earth.Connect-up external shield at therespective connector housing.GB-11Encoder Interface UVW TTL Input3.3.3Input signals channel 23.3.3.1 Signal tracksAt this TTL input encoder interface the signals A+and B+are electrically phase-shifted by90 rectangular signals with the respective inverted tracks A-and B-.Figure 3.3.3.1Signal tracks A+and B++A2.5VCOM0.0,5V-A2.5VCOM0.0,5V+B2..5VCOM0.0,5V-B2.5VCOM0.0,5Vt3.3.3.2Evaluation of the zero signalThe zero impulse is required to determine valid position points.In case of pure speed con-trols the signal does not need to be connected.In the following signal sequence the maxi-mum permissible length of the zero impulse of the encoder is visible.The zero signal willbe acquired if A+,B+and N+are at high level.By that there is only one valid position pointwhich is independent from the travel direction.Figure 3.3.3.2Evaluation of the zero signal+A+B+NmaxGB-12