Intelligent Motion Systems MDrive34Plus manual Shock Load Output Torque, =1.6 =1.7 =1.9

Page 74

Shock Load Output Torque

The nominal output torque (TN) is the actual working torque the Planetary Gearbox will generate. The shock load output torque (TAB) is the additional torque that can be generated by starting and stopping with no acceleration ramps, payloads, inertia and directional changes. Although the nominal output torque (TN) of the Planetary Gearbox is accurately calculated, shock loads can greatly increase the dynamic torque on the Planetary Gearbox.

Each Planetary Gearbox has a maximum specified output torque. In this example a 7:1 single stage MD23 Planetary Gearbox is being used. The maximum specified output torque is 566 oz-in. By calculating the shock load output torque (TAB) you can verify that value is not exceeding the maximum specified output torque.

When calculating the shock load output torque (TAB), the calculated nominal output torque (TN) and the operating factor (CB) are taken into account. CB is merely a factor which addresses the different working conditions of a Planetary Gearbox and is the result of your subjective appraisal. It is therefore only meant as a guide value. The following factors are included in the approximate estimation of the operating factor (CB):

Direction of rotation (constant or alternating)

Load (shocks)

Daily operating time

Note: The higher the operating factor (CB), the closer the shock load output torque (TAB) will be to the maxi- mum specified output torque for the Planetary Gearbox. Refer to the table below to calculate the approximate operating factor (CB).

With the most extreme conditions which would be a CB of 1.9, the shock load output torque (TAB) is over the maximum specified torque of the Planetary Gearbox with a 0.5 safety factor but under with a 0.7 safety factor.

The nominal output torque (TN) ⋅ the operating factor (CB) = shock load or maximum output torque (TAB).

With a 0.5 safety factor, the shock load output torque is greater than the maximum output torque specifica- tion of the MDrive23 Planetary Gearbox.

(378 ⋅ 1.9 = 718.2 oz-in.)

With a 0.7 safety factor the shock load output torque is within maximum output torque specification of the MDrive23 Planetary Gearbox.

(270 ⋅ 1.9 = 513 oz-in.)

The 0.5 safety factor could only be used with a lower operating factor (CB) such as 1.5 or less, or a lower mo- tor torque.

Note: All published torque specifications are based on CB = 1.0. Therefore, the shock load output torque (TAB) = nominal output torque (TN).

WARNING! Excessive torque may damage your Planetary Gearbox. If the MDrive/Planetary Gearbox should hit an obstruction, especially at lower speeds (300 RPM or 1000 Full Steps/Second), the torque generated will exceed the maximum torque for the Planetary Gearbox. Precautions must be taken to ensure there are no obstructions in the system.

Determining the Operating Factor (CB)

Direction of

Load

Daily Operating Time

Rotation

(Shocks)

 

 

 

 

 

3 Hours

8 Hours

24 Hours

 

 

 

 

 

Constant

Low*

CB=1.0

CB=1.1

CB=1.3

 

Medium**

CB=1.2

CB=1.3

CB=1.5

Alternating

Low†

CB=1.3

CB=1.4

CB=1.6

 

Medium††

CB=1.6

CB=1.7

CB=1.9

*Low Shock = Motor turns in one direction and has ramp up at start.

**Medium Shock = Motor turns in one direction and has no ramp up at start.

† Low Shock = Motor turns in both directions and has ramp up at start.

†† Medium Shock = Motor turns in both directions and has no ramp up at start.

Table B.1: Planetary Gearbox Operating Factor

A-8

MDrive 34Plus Microstepping Hardware - Revision R071108

 

Relevant to Firmware Version 3.0.02

Page 73 Page 75
Image 74
Page 73 Page 75
Contents MDrive34Plus Microstepping MDrive34Plus Microstepping Hardware Reference Change Log Important information This page intentionally left blank Table Of Contents Appendices List Of Figures Appendix E Linear Slide OptionFigure C.2 10-Pin IDC List of Tables This Page Intentionally Left Blank MDrive34Plus Microstepping Install the IMS SPI Motor Interface Figure GS.2 IMS Motor Interface Showing Default SettingsPart Hardware Specifications Intentionally Left Blank Introduction to the MDrive34Plus Microstepping Features and BenefitsConfiguration Interface Page General Specifications Electrical SpecificationsSetup Parameters Single LengthMechanical Specifications Dimensions in Inches mmLocking Wire Crimp with Internal Optical Encoder Connector OptionsWire Color With Internal Encoder Function Description Pin Assignment And Description Flying Leads VersionMDrive 34Plus Microstepping Hardware Revision R071108 P2 Connector SPI Communications MosiPin Assignment And Description Pluggable Interface Version Pin # Function DescriptionP3 Connector DC Power, 2-Pin Locking Wire Crimp PD02-3400-FL3Recommended Cable Communication Converters Mating Connector KitsQuickStart Kit Prototype Development CablesIntentionally Left Blank Part Interfacing Configuring Intentionally Left Blank Mounting Recommendations Allow Top Clearance for Wiring/CablingMounting and Interface Guidelines Mounting Flange or Adapter PlateRules of Shielding Rules of WiringLayout and Interface Guidelines Recommended Mating Connectors and Pins Securing Power Leads and Logic Leads 3 Typical MDrive Shown with Leads SecuredInterfacing DC Power Choosing a Power Supply for Your MDriveIP804 Unregulated Linear Supply DC Power Supply RecommendationsISP300-7 Unregulated Switching Supply IP806 Unregulated Linear SupplyConnecting DC Power 2 DC Power ConnectionsRecommended Power and Cable Configurations Example a Cabling Under 50 Feet, DC PowerMDrive34Plus Recommended Power Supply Cable AWG Intentionally Left Blank Optically Isolated Logic Inputs Isolated Logic Input Pins and ConnectionsIsolated Input Interface and Connection Input Configuration See Input ConfigurationQuadrature Step ClockDirection Up/DownChannel a DirectionStep Channel BOptocoupler Reference Optocoupler ReferenceInput Connection Examples Open Collector Interface ExampleSwitch Interface Sourcing Switch Interface ExampleMinimum Required Connections +VDC Motor SupplyConnecting SPI Communications SPI Pins and Connections LogicLogic Level Shifting and Conditioning Circuit 2 Logic Level Shifting and Conditioning CircuitSPI Master with Multiple MDrivePlus Microstepping SPI ClockColor Coded Parameter Values Using the IMS SPI Motor Interface InstallationConfiguration Parameters and Ranges File Motion Settings Screen Read-Only Part Serial Number ScreenIMS SPI Motor Interface Menu Options ViewHelp UpgradeRecall Screen 1 The Motion Settings Configuration Screen Msel Microstep Resolution SelectionSet Connected/Disconnected IndicatorFactory ExitInput Clock Type Screen 2 I/O Settings Configuration ScreenEnable Active High/Low Input Clock FilterIMS IMS Serial Number Fault IndicationIMS Part Number/Serial Number Screen Upgrading the Firmware in the MDrivePlus Microstepping IMS SPI Upgrader ScreenUpgrade Instructions Initialization Screen Port MenuIntentionally Left Blank Check Sum Calculation for SPI Using User-Defined SPISPI Timing Notes SPI Commands and Parameters MSBWrite SPI Communications SequenceIntentionally Left Blank Appendices MDrive 34Plus Microstepping Hardware Revision R071108 MDrive34Plus Microstepping Motor Performance Speed-Torque CurvesDouble Length Motor SpecificationsSingle Length Triple LengthProduct Overview Planetary GearboxesSection Overview Selecting a Planetary GearboxReduction Ratio Calculating the Shock Load Output Torque TABFactors ExampleNominal Output Torque Figure B.1 MDrive34 Torque-Speed CurveShock Load Output Torque =1.6 =1.7 =1.9Lead Screw System InertiaType of System Conveyor Belt Rack and PinionRotary Table Belt DriveChain Drive Figure B.6 Chain Drive System Inertia ConsiderationsPM81 Gearbox Ratios and Part Numbers Planetary Gearbox for MDrive34PlusMDrive34Plus Planetary Gearbox Parameters Intentionally Left Blank MD-CC300-001 MD-CC30x-001 USB to SPI Converter and Parameter Setup CableConnectivity Mating Connector Kit p/n CK-01 Connector Detail and Mating Connector KitConnector Details MD-CC303-001 MD-CC3Figure C.4 12-Pin Wire Crimp Mating Connector Kit p/n CK-03Installation Procedure for the MD-CC30x-000 Installing the Cable/VCP DriversFigure C.7 Hardware Update Wizard Screen Determining the Virtual COM Port VCP Figure C.10 Hardware PropertiesWire Color Code Prototype Development Cable PD12-1434-FL3Mating Connector Kit p/n CK-02 PD10-3400-FL3 Internal Differential EncoderPrototype Development Cable PD02-3400-FL3 Main Power Mating Connector Kit p/n CK-05Interfacing an Encoder Factory Mounted Internal EncoderEncoder Connections Differential encoderDifferential Encoder Encoder SignalsSingle-End Encoder Available with Flying Leads Version only Recommended Encoder Mating Connectors Encoder CableMDrive34Plus Linear Slide FeaturesLinear Slide Option †Speed/Force correlating equationsSpecifications Mechanical 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.
Top Page Image Contents