Intelligent Motion Systems MDrive34Plus manual System Inertia, Type of System, Lead Screw

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System Inertia

System inertia must be included in the selection of an MDrive and Planetary Gearbox. Inertia is the resistance an object has relative to changes in velocity. Inertia must be calculated and matched to the motor inertia. The Plan- etary Gearbox ratio plays an important role in matching system inertia to motor inertia. There are many variable factors that affect the inertia. Some of these factors are:

The type of system being driven.

Weight and frictional forces of that system.

The load the system is moving or carrying.

The ratio of the system inertia to motor inertia should be between 1:1 and 10:1. With 1:1 being ideal, a 1:1 to 5:1 ratio is good while a ratio greater than 5:1 and up to 10:1 is the maximum.

Type of System

There are many systems and drives, from simple to complex, which react differently and possess varied amounts of inertia. All of the moving components of a given system will have some inertia factor which must be included in the total inertia calculation. Some of these systems include:

Lead screw

Rack and pinion

Conveyor belt

Rotary table

Belt drive

Chain drive

Not only must the inertia of the system be calculated, but also any load that it may be moving or carrying. The examples below illustrate some of the factors that must be considered when calculating the inertia of a system.

Lead Screw

In a system with a lead screw, the following must be considered:

The weight and preload of the screw

The weight of the lead screw nut

The weight of a table or slide

The friction caused by the table guideways

The weight of any parts

Weight of

Weight of

table

parts

Weight of

Weight of

screw

nut

Friction of

Preload on

guideways

leadscrew

 

Figure B.2: Lead Screw System Inertia Considerations

Appendices

A-9

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Contents MDrive34Plus Microstepping MDrive34Plus Microstepping Hardware Reference Change Log Important information This page intentionally left blank Table Of Contents Appendices Appendix E Linear Slide Option List Of FiguresFigure C.2 10-Pin IDC List of Tables This Page Intentionally Left Blank MDrive34Plus Microstepping Figure GS.2 IMS Motor Interface Showing Default Settings Install the IMS SPI Motor InterfacePart Hardware Specifications Intentionally Left Blank Features and Benefits Configuration InterfaceIntroduction to the MDrive34Plus Microstepping Page Electrical Specifications General SpecificationsSingle Length Setup ParametersDimensions in Inches mm Mechanical SpecificationsConnector Options Locking Wire Crimp with Internal Optical EncoderPin Assignment And Description Flying Leads Version Wire Color With Internal Encoder Function DescriptionMDrive 34Plus Microstepping Hardware Revision R071108 Mosi P2 Connector SPI CommunicationsPin # Function Description Pin Assignment And Description Pluggable Interface VersionPD02-3400-FL3 P3 Connector DC Power, 2-Pin Locking Wire CrimpRecommended Cable Prototype Development Cables Mating Connector KitsQuickStart Kit Communication ConvertersIntentionally Left Blank Part Interfacing Configuring Intentionally Left Blank Mounting Flange or Adapter Plate Allow Top Clearance for Wiring/CablingMounting and Interface Guidelines Mounting RecommendationsRules of Wiring Layout and Interface GuidelinesRules of Shielding Recommended Mating Connectors and Pins 3 Typical MDrive Shown with Leads Secured Securing Power Leads and Logic LeadsChoosing a Power Supply for Your MDrive Interfacing DC PowerIP806 Unregulated Linear Supply DC Power Supply RecommendationsISP300-7 Unregulated Switching Supply IP804 Unregulated Linear Supply2 DC Power Connections Connecting DC PowerExample a Cabling Under 50 Feet, DC Power Recommended Power and Cable ConfigurationsMDrive34Plus Recommended Power Supply Cable AWG Intentionally Left Blank Isolated Logic Input Pins and Connections Isolated Input Interface and ConnectionOptically Isolated Logic Inputs See Input Configuration Input ConfigurationUp/Down Step ClockDirection QuadratureChannel B DirectionStep Channel aOptocoupler Reference Optocoupler ReferenceOpen Collector Interface Example Input Connection ExamplesSwitch Interface Example Switch Interface Sourcing+VDC Motor Supply Minimum Required ConnectionsConnecting SPI Communications Logic SPI Pins and Connections2 Logic Level Shifting and Conditioning Circuit Logic Level Shifting and Conditioning CircuitSPI Clock SPI Master with Multiple MDrivePlus MicrosteppingUsing the IMS SPI Motor Interface Installation Configuration Parameters and RangesColor Coded Parameter Values View Motion Settings Screen Read-Only Part Serial Number ScreenIMS SPI Motor Interface Menu Options FileUpgrade RecallHelp Msel Microstep Resolution Selection Screen 1 The Motion Settings Configuration ScreenExit Connected/Disconnected IndicatorFactory SetInput Clock Filter Screen 2 I/O Settings Configuration ScreenEnable Active High/Low Input Clock TypeFault Indication IMS Part Number/Serial Number ScreenIMS IMS Serial Number IMS SPI Upgrader Screen Upgrade InstructionsUpgrading the Firmware in the MDrivePlus Microstepping Port Menu Initialization ScreenIntentionally Left Blank Using User-Defined SPI SPI Timing NotesCheck Sum Calculation for SPI MSB SPI Commands and ParametersSPI Communications Sequence WriteIntentionally Left Blank Appendices MDrive 34Plus Microstepping Hardware Revision R071108 Speed-Torque Curves MDrive34Plus Microstepping Motor PerformanceTriple Length Motor SpecificationsSingle Length Double LengthSelecting a Planetary Gearbox Planetary GearboxesSection Overview Product OverviewExample Calculating the Shock Load Output Torque TABFactors Reduction RatioFigure B.1 MDrive34 Torque-Speed Curve Nominal Output Torque=1.6 =1.7 =1.9 Shock Load Output TorqueSystem Inertia Type of SystemLead Screw Rack and Pinion Conveyor BeltBelt Drive Rotary TableFigure B.6 Chain Drive System Inertia Considerations Chain DrivePlanetary Gearbox for MDrive34Plus MDrive34Plus Planetary Gearbox ParametersPM81 Gearbox Ratios and Part Numbers Intentionally Left Blank MD-CC30x-001 USB to SPI Converter and Parameter Setup Cable ConnectivityMD-CC300-001 Connector Detail and Mating Connector Kit Connector DetailsMating Connector Kit p/n CK-01 MD-CC3 MD-CC303-001Mating Connector Kit p/n CK-03 Figure C.4 12-Pin Wire CrimpInstalling the Cable/VCP Drivers Installation Procedure for the MD-CC30x-000Figure C.7 Hardware Update Wizard Screen Figure C.10 Hardware Properties Determining the Virtual COM Port VCPPrototype Development Cable PD12-1434-FL3 Wire Color CodePD10-3400-FL3 Internal Differential Encoder Mating Connector Kit p/n CK-02Mating Connector Kit p/n CK-05 Prototype Development Cable PD02-3400-FL3 Main PowerFactory Mounted Internal Encoder Interfacing an EncoderDifferential encoder Encoder ConnectionsEncoder Signals Single-End Encoder Available with Flying Leads Version onlyDifferential Encoder Encoder Cable Recommended Encoder Mating Connectors†Speed/Force correlating equations FeaturesLinear Slide Option MDrive34Plus Linear SlideMechanical Specifications SpecificationsWarranty Intelligent Motion Systems, Inc

MDrive34Plus specifications

The Intelligent Motion Systems MDrive34Plus is an advanced integrated stepper motor and drive solution designed for a wide range of industrial automation applications. This compact device combines the motor, drive, and control into a single unit, simplifying installation and minimizing space requirements. This makes it an ideal choice for applications where space and efficiency are critical.

One of the standout features of the MDrive34Plus is its high torque output, which enables it to handle significant loads with ease. Rated for a variety of torque configurations, this stepper motor provides the necessary power for demanding tasks while maintaining precise control and smooth operation. The MDrive34Plus also features a high-resolution microstepping capability, which enhances performance by providing smoother motion and reducing audible noise.

The device employs advanced digital control technologies, ensuring accurate positioning and minimizing erratic performance. Integrated with onboard intelligence, the MDrive34Plus allows for programmable settings, including acceleration, deceleration, and speed control, which can be customized according to the specific requirements of the application.

In terms of connectivity, the MDrive34Plus offers a range of communication protocols including RS-232, RS-485, and USB options, allowing it to easily integrate with various control systems and enable real-time monitoring and diagnostics. This flexibility is vital for modern automation solutions where adaptability is key.

The MDrive34Plus is also designed for robust performance in challenging environments, featuring an IP65 rated enclosure that protects against dust and moisture. This makes it suitable for use in a variety of industrial settings such as packaging, assembly, and robotics.

Furthermore, the MDrive34Plus supports both open-loop and closed-loop control configurations. This versatility provides users with the ability to choose the best operational mode for their application, optimizing performance and efficiency.

In conclusion, the Intelligent Motion Systems MDrive34Plus is a powerful, flexible, and easy-to-install integrated motor and drive solution. With its high torque capabilities, advanced digital control features, diverse connectivity options, and robust design, it stands out as an excellent choice for modern automation challenges. Whether for precise positioning tasks or heavy load handling, the MDrive34Plus is equipped to meet a broad spectrum of operational demands.
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