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wheeler WM540 User Manual

High performance microstepping driver
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User Manual
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WM540
High Performance Microstepping Driver
Attention: Please read this manual carefully before using driver!
Changzhou Wheeler Motor Co., LTD
www.wheeler.com.cn
86-519-83252878 China
info@wheeler.com.cn
The content of this manual has been carefully prepared and is believed to accurate, but no responsibility is assumed for
inaccuracies.
All Rights Reserved

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Summary of Contents for wheeler WM540

  • Page 1 User Manual WM540 High Performance Microstepping Driver Attention: Please read this manual carefully before using driver! Changzhou Wheeler Motor Co., LTD www.wheeler.com.cn 86-519-83252878 China info@wheeler.com.cn The content of this manual has been carefully prepared and is believed to accurate, but no responsibility is assumed for inaccuracies.
  • Page 2 Introduction, Features and Applications WM540 Driver is a high performance microstepping driver based on the most advanced technology in the world today. It is suitable for driving 2-phase and 4-phase hybrid step motors (current 4.0A). By using advanced bipolar constant- current chopping technique, it can output more speed and power from the same motor, compared with traditional technologies such as L/R drivers.
  • Page 3 WM540 High Performance Microstepping Driver _____________________________________________________________________________________________ Operating Environment and Parameters Cooling Natural cooling or forced convection Environment Space Avoid dust, oil, frost and corrosive gas Temperature 0°－ 50℃ 40 － Humidity 90%RH 5.9m/s Vibration -20℃ － Storge Temp. +65℃ Weight About 0.4kg/WM540...
  • Page 4 This driver can operate small-medium size step motors (such as low voltage versions of sizes 11, 14, 17, 23) made by Wheeler or other motor manufactures from around the world. To achieve good driving results, it is important to select supply voltage and output current properly.
  • Page 5 The first three bits (SW1, 2, 3) of the DIP switch are used to set the current during motion (dynamic current ), while SW4 is used to select standstill current. WM540 DIP Switch settings for RMS current during motion: RMS Current for WM540 1.5A...
  • Page 6 WM540 High Performance Microstepping Driver _____________________________________________________________________________________________ Note that due to motor inductance the actual current in the coil may be smaller than the dynamic current settings, particularly at higher speeds. DIP setting for current during standstill: SW4 is used for this purpose, the half current setting will reduce motor heating at standstill. OFF meaning that the standstill current is set to be half of the dynamic current and ON meaning that standstill current is set to be the same as dynamic current.
  • Page 7 WM540 High Performance Microstepping Driver __________________________________________ ___________________________________________________ Figure 3: Signal Interface * For the European Market – the maximum input voltage must be limited to 70VDC to comply with CE regulations.
  • Page 8 M540 High Performance Microstepping Driver _____________________________________________________________________________________________ Protection Functions improve reliability, the driver incorporates a number of built-in protections features. Over-voltage protection hen power s upply voltage exceeds +80VDC*, protec tion will be activated and power indicator LED will turn red. When power s upply voltage is lower than +18VDC, th e driver will not work properly.
  • Page 9 WM540 High Performance Microstepping Driver _____________________________________________________________________________________________ Figure 5: 8 Lead Motor Series Connections Parallel Connection An 8 lead motor in a parallel configu ration, because of the lower inductance, will ha ve higher torque at higher speeds. ultiply the motor's unipolar (peak) current rating by 1.4 for the RMS current, or the motor's bipolar current rating is the RMS current.
  • Page 10 WM540 High Performance Microstepping Driver ____________________________________________________________________________________________ Figure 7: 6 Lead Half Coil (Higher Speed) Motor Connections Full Coil Co nfig uration The full coil configuration o n a six lead motor should be used in applications where higher to rque at lower speeds is esired.
  • Page 11 WM540 High Performance Microstepping Driver _____________________________________________________________________________________________ 10. Connection Diagram for Driver, Motor, Controller A complete stepping system should include stepping motor, stepping driver, power supply an d controller (pulse nerator). A typical connection is shown below: Figure 10: Driver connection in a stepping system 11.
  • Page 12 User Manual WM850 High Performance Microstepping Driver Attention: Please read this manual carefully before using driver! Changzhou Wheeler Motor Co., LTD www.wheeler.com.cn 86-519-83252878 China info@wheeler.com.cn The content of this manual has been carefully prepared and is believed to accurate, but no responsibility is assumed for inaccuracies.

  • Page 13: Table Of Contents

    WM850 High Performance Microstepping Driver _____________________________________________________________________________________________ Table of Contents Introduction, Features and Applications ·································································2 Specifications and Operating Environment ····························································2 Driver Connectors P1 and P2 ·················································································3 Power Supply ········································································································.4 Driver Voltage and Current ····················································································4 Selecting Microstep Resolution and Driver Current ··············································5 Control Signal Connector (P1) Interface ································································6 Protection Features ·································································································8 Driver Connection to Motors...

  • Page 14: Driver Connectors P1 And P2

    WM850 High Performance Microstepping Driver _____________________________________________________________________________________________ Operating Environment and Parameters Cooling Natural cooling or forced convection Environment Space Avoid dust, oil, frost and corrosive gas Temperature 0°－ 50℃ 40 － Humidity 90%RH 5.9m/s Vibration -20℃ － Storge Temp. +65℃ Weight About 0.4kg/WM850 WM850 Front View Figure 1: Mechanical Dimensions...

  • Page 15: Power Supply

    This driver can operate small-medium size step motors (such as low voltage versions of sizes 11, 14, 17, 23 and 34) made by Wheeler or other motor manufactures from around the world. To achieve good driving results, it is important to select supply voltage and output current properly.

  • Page 16: Selecting Microstep Resolution And Driver Current

    The first three bits (SW1, 2, 3) of the DIP switch are used to set the current during motion (dynamic current ), while SW4 is used to select standstill current. WM850 DIP Switch settings for RMS current during motion: RMS Current for WM540 1.8A 2.4A 2.8A 3.4A...

  • Page 17: Control Signal Connector (P1) Interface

    WM850 High Performance Microstepping Driver _____________________________________________________________________________________________ Note that due to motor inductance the actual current in the coil may be smaller than the dynamic current settings, particularly at higher speeds. DIP setting for current during standstill: SW4 is used for this purpose, the half current setting will reduce motor heating at standstill. OFF meaning that the standstill current is set to be half of the dynamic current and ON meaning that standstill current is set to be the same as dynamic current.
  • Page 18 WM850 High Performance Microstepping Driver __________________________________________ ___________________________________________________ Figure 3: Signal Interface * For the European Market – the maximum input voltage must be limited to 70VDC to comply with CE regulations.

  • Page 19: Driver Connection To Motors

    M850 High Performance Microstepping Driver ____________________________________________________________________________________________ Protection Functions To improve reliability, the driver incorporates a number of built-in protections features. Over-voltage protection When power supply voltage exceeds +80VDC*, protection will be activated and power i ndicator LED will turn red. W en power supply voltage is lower than +18VDC , the driver will not work properly.
  • Page 20 WM850 High Performance Microstepping Driver _____________________________________________________________________________________________ Figure 5: 8 Lead Motor Series Connections Parallel Connection An 8 lead motor in a parallel configu ration, because of the lower inductance, will ha ve higher torque at higher speeds. ultiply the motor's unipolar (peak) current rating by 1.4 for the RMS current, or the motor's bipolar current rating is the RMS current.
  • Page 21 WM850 High Performance Microstepping Driver ____________________________________________________________________________________________ Figure 7: 6 Lead Half Coil (Higher Speed) Motor Connections Full Coil Co nfig uration The full coil configuration o n a six lead motor should be used in applications where higher to rque at lower speeds is esired.

  • Page 22: Connection Diagram For Driver, Motor, Controller

    WM850 High Performance Microstepping Driver _____________________________________________________________________________________________ 10. Connection Diagram for Driver, Motor, Controller A complete stepping system should include stepping motor, stepping driver, power supply an d controller (pulse nerator). A typical connection is shown below: Figure 10: Driver connection in a stepping system 11.