Intelligent Motion Systems MDrive34AC manual A-13

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Chain Drive

In a system with a chain drive, the following must be considered:

the weight and size of drive sprocket and any attaching hub

the weight and size of the driven sprocket and shaft

the weight of the chain

the weight of any material or parts being moved

Weight of

chain

Weight and size of drive

sprocket and hub

Weight and size of driven sprocket,

shaft and any material or parts being moved

Figure B.6: Chain Drive System Inertia Considerations

Once the system inertia (JL) has been calculated in oz-in-sec2, it can be matched to the motor inertia. To match the system inertia to the motor inertia, divide the system inertia by the square of the gearbox ratio. The result is called Reflected Inertia or (Jref).

Jref = JL ⎟ Ζ2

Where:

JL = System Inertia in oz-in-sec2

Jref = Reflected Inertia in oz-in-sec2

Z = Gearbox Ratio

The ideal situation would be to have a 1:1 system inertia to motor inertia ratio. This will yield the best positioning and accuracy. The reflected inertia (Jref) must not exceed 10 times the motor inertia.

Your system may require a reflected inertia ratio as close to 1:1 as possible. To achieve the 1:1 ratio, you must calculate an Optimal Gearbox Ratio (Zopt) which would be the square root of JL divided by the desired Jref. In this case since you want the system inertia to match the motor inertia with a 1:1 ratio, Jref would be equal to the motor inertia.

Zopt = JL ⎟ Jref

Where:

Zopt = Optimal Gearbox Ratio

JL = System Inertia in oz-in-sec2

Jref = Desired Reflected Inertia in oz-in-sec2(Motor Inertia)

Appendices

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Image 66

Contents 42TM Excellence in MotionTM34 TM OPERATING INSTRUCTIONSLow Voltage Installation Information inaccuraciesMDriveAC Plus Microstepping Revision R031808 Important information Qualification of personnelIntended Use This page intentionally left blank Part 2 Interfacing and Configuration Table Of ContentsPart 1 Hardware Specifications 1-132-12 Section 2.3: Using the IMS SPI Motor InterfaceSection 2.4: Using User-DefinedSPI 2-21Part 2: Interfacing and Configuration List Of FiguresPart 1: Hardware Specifications AppendicesPart 2: Interfacing and Configuration List of TablesPart 1: Hardware Specifications AppendicesGETTING STARTED Connecting AC PowerConnect Opto Power and Logic Inputs MDriveAC Plus MicrosteppingMotion Settings DialogInput Settings Dialog Connecting Parameter Setup CableInstall the IMS SPI Motor Interface Figure GS.2: MDriveAC Plus CDPART HARDWARE SPECIFICATIONS Excellence in Motion TMmICROSTEPPING Page Intentionally Left Blank Relevant to Firmware VersionSECTION ConfiguringFeatures and Benefits Introduction to the MDrive34AC Plus Microstepping20 Microstep Resolutions up to Thermal Specifications General SpecificationsElectrical Specifications I/O SpecificationsMotor Specifications Setup ParametersMDriveAC Plus Microstepping Setup Parameters DefaultConnectors Mechanical SpecificationsDimensions in Inches mm Control KnobNEED A CABLE? Pin Assignment and Descriptionavailable to interface to the 19-PinM23 Connector The following cordset isPin # Pin Assignment - P1 I/O, SPI and EncoderConnections FunctionOutside: Pins 1 Inside: Pins 13 -Options and Accessories Features and Benefits Introduction to the MDrive42AC Plus MicrosteppingConfiguring Motor, Power Supply, and Drive Electronics20 Microstep Resolutions up to I/O Specifications Electrical SpecificationsThermal Specifications Communications SpecificationsDefault Setup ParametersMDriveAC Plus Microstepping Setup Parameters Table 1.4.1: Setup ParametersConnectors Mechanical SpecificationsDimensions in Inches mm P1 P3NEED A CABLE? available to interface to the 19-PinM23 ConnectorPin Assignment and Description The following cordset isPin # Pin Assignment - P1 I/O, SPI and EncoderConnections FunctionOutside: Pins 1 Inside: Pins 13 -Pin Pin Pin Internal Encoder Options and AccessoriesParameter Setup Cable and Adapter Control KnobSection 2.3: Using the IMS SPI Motor Interface PART INTERFACING AND CONFIGURINGSection 2.2: Connecting SPI Communications Section 2.4 Using User-DefinedSPIPage Intentionally Left Blank Relevant to Firmware VersionOptically Isolated Logic Inputs Isolated Logic Input Pins and ConnectionsLogic Interface and Connection MD-CS10x-000Wire Color ReferenceDirection Isolated Logic Input CharacteristicsStep Clock QuadratureUP/DOWN CW/CCW TIMING STEP/DIRECTION TIMINGQUADRATURE TIMING Figure 2.1.3: Clock Input Timing CharacteristicsMicrostepping Optocoupler ReferenceMDriveACPlus Optocoupler ReferencePNP Open Collector Interface Sourcing NPN Open Collector Interface SinkingMDriveACPlus Microstepping Input Connection ExamplesFault Temperature Warning Output Switch Interface SinkingSwitch Interface Sourcing Switch Interface ExampleMinimum Required Connections Figure 2.1.7: Fault Output interfaced to an LEDFigure 2.1.8 Minimum Required Connections SPI Signal Overview Connecting SPI CommunicationsConnecting the SPI Interface +5 VDC OutputMicrostepping #2 SPI Pins and ConnectionsMDriveACPlus Microstepping #1 MDriveACPlus 2-11Color Coded Parameter Values Using the IMS SPI Motor Interface InstallationConfiguration Parameters and Ranges MDriveAC Plus Microstepping Setup ParametersFile View Settings ScreenIMS SPI Motor Interface Menu Options Perform File OperationHelp UpgradeRecall 2-141.MSEL: Microstep Resolution Select MSEL Microstep Resolution SelectionExit Connected/Disconnected IndicatorFactory HCDT Hold Current Delay TimeEnable Active High/Low Screen 2 I/O Settings Configuration ScreenInput Clock Filter Settings Input Clock TypeFault Indication IMS Part Number/Serial Number ScreenMDriveAC Plus Microstepping Fault Codes The IMS SPI Upgrader Screen Upgrade Instructions2.Serial Number: the serial number of your unit Initialization Screen Communications Port OperationsPort Menu Check Sum Calculation for SPI Using User-DefinedSPISPI Timing Notes SECTIONTable 2.4.1: SPI Commands and Parameters SPI Commands and Parameters2-22 Relevant to Firmware VersionREAD WriteSPI Communications Sequence Page Intentionally Left Blank Relevant to Firmware VersionAppendix C: Optional Cables and Cordsets APPENDICESAppendix B: Gear Boxes Appendix D: Interfacing an EncoderPage MDrive34AC Plus Microstepping Motor SpecificationsMDriveAC Plus Microstepping Motor Performance MDrive34AC – 120VACMDrive42AC Plus Microstepping Double LengthTriple Length MDrive42AC – 120VACDouble Length Motor SpecificationsSingle Length 1147 oz-in/810 N-cmSection Overview APPENDIX BMDrive with Planetary Gearbox Product OverviewCalculating the Shock Load Output Torque TAB ExampleFigure B.1: MDrive23 Torque-SpeedCurve Table B.1: Planetary Gearbox Operating Factor Weight of Conveyor Belt A-11A-12 A-13 MDrive34AC Plus2 Planetary Gearbox Parameters Planetary Gearbox for MDrive34AC Plus2A-14 PM81 Gearbox Ratios and Part NumbersPlanetary Gearbox for MDrive42AC Plus2 A-15PM105 Gearbox Ratios and Part Numbers A-16 PM120 Gearbox Ratios and Part NumbersAPPENDIX C MD-CC300-000 USB to SPI Parameter Setup CableInstallation Procedure for the MX-CC300-000 Optional Cables and CordsetsA-18 A-19 Determining the Virtual COM Port VCPAdapter A-20P1 - Expanded I/O Configuration MD-CS10x-000CordsetPin Assignment and Wire Colors Function3-PinEuro AC Connector MD-CS20x-000CordsetTable C.2: Euro AC Wire Color Chart MD-CS200-000MDriveAC Plus Microstepping Pin ConfigurationAPPENDIX D Factory Mounted EncoderEncoder Signals A-24Linear Slide Option FeaturesAPPENDIX E MDrive34Plus Linear SlideMechanical Specifications A-26Specifications ScrewTWENTY-FOUR24 MONTH LIMITED WARRANTY OBTAINING WARRANTY SERVICEWARRANTY intelligent motion systems, INC Excellence in Motion