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Summary of Contents for Leadshine DMA860H
- Page 1 User’s Manual DMA860H Fully Digital Stepper Drive Version 1.0 ©2012 All Rights Reserved Attention: Please read this manual carefully before using the drive!
- Page 2 Leadshine reserves the right to make changes without further notice to any products herein to improve reliability, function or design. Leadshine does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights of others.
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Page 3: Table Of Contents
Contents Table of Contents 1. Introduction, Features and Applications ........................1 Introduction ................................1 Features ..................................1 Applications ................................1 2. Specifications ................................1 Electrical Specifications ............................1 Operating Environment and other Specifications ..................... 2 Mechanical Specifications ............................2 Elimination of Heat..............................2 3. - Page 4 DMA860H Fully Digital Stepper Drive Manual V1.0 Twelve Month Limited Warranty ..........................12 Exclusions ................................12 Obtaining Warranty Service ............................ 12 Warranty Limitations .............................. 12 Contact Us ..................................13...
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Page 5: Introduction, Features And Applications
1. Introduction, Features and Applications Introduction The DMA860H is a fully digital stepper drive developed with advanced DSP control algorithm based on the latest motion control technology. It has achieved a unique level of system smoothness, providing optimal torque and nulls mid-range instability. -
Page 6: Operating Environment And Other Specifications
DMA860H Fully Digital Stepper Drive Manual V1.0 Operating Environment and other Specifications Cooling Natural Cooling or Forced cooling Environment Avoid dust, oil fog and corrosive gases 0℃ － 50℃ Ambient Temperature 40%RH － 90%RH Operating Environment Humidity 70℃ M ax Operating Temperature 5.9m/s... -
Page 7: Pin Assignment And Description
Selecting Active Pulse Edge or Active Level and Control Signal Mode There are two jumpers J1 and J2 inside the DMA860H specifically for selecting active pulse edge and control signal mode, as shown in figure 2. Default setting is PUL/DIR mode and upward-rising edge active. -
Page 8: Connector P2 Configurations
The DMA860H can accept differential and single-ended inputs (including open-collector and PNP output). The DMA860H has 3 optically isolated logic inputs which are located on connector P1 to accept line driver control signals. These inputs are isolated to minimize or eliminate electrical noises coupled onto the drive control signals. Recommend use line driver control signals to increase noise immunity of the driver in interference environments. -
Page 9: Connections To 6-Lead Motors
DMA860H Fully Digital Stepper Drive Manual V1.0 Connections to 6-lead Motors Like 8 lead stepping motors, 6 lead motors have two configurations available for high speed or high torque operation. The higher speed configuration, or half coil, is so described because it uses one half of the motor’s inductor windings. -
Page 10: Parallel Connections
6. Power Supply Selection The DMA860H can match medium and small size stepping motors (from NEMA frame size 17 to 34) made by Leadshine or other motor manufactures around the world. To achieve good driving performances, it is important to select supply voltage and output current properly. -
Page 11: Selecting Supply Voltage
DMA860H Fully Digital Stepper Drive Manual V1.0 Selecting Supply Voltage The power MOSFETS inside the DMA860H can actually operate within +24 ~ +80VDC or 24V—80 VAC, including power input fluctuation and back EMF voltage generated by motor coils during motor shaft deceleration. Higher supply voltage can increase motor torque at higher speeds, thus helpful for avoiding losing steps. -
Page 12: Dynamic Current Setting
DMA860H Fully Digital Stepper Drive Manual V1.0 Since parallel and serial connections of motor coils will significantly change resulting inductance and resistance, it is therefore important to set driver output current depending on motor phase current, motor leads and connection methods. -
Page 13: Wiring Notes
DMA860H Fully Digital Stepper Drive Manual V1.0 Auto Tuning Requirement and Procedure: 1. Motor is connected to drive. 2. Power is connected to drive. 3. Turn on the power. 4. Make sure there is no pulse applied to drive. 5. Switch SW4 two times in one second. That is OFF-ON-OFF or ON-OFF-ON. -
Page 14: Sequence Chart Of Control Signals
DMA860H Fully Digital Stepper Drive Manual V1.0 DM860 Controller VCC = 5V 270 O PUL+ PUL- Pulse 270 O DIR+ DIR- Direction 270 O ENA+ ENA- Enable Stepper Motor Recommended Power Supply 24 ~ 68VDC Figure 10: Typical connection 10. Sequence Chart of Control Signals... -
Page 15: Protection Functions
DMA860H Fully Digital Stepper Drive Manual V1.0 t1: ENA must be ahead of DIR by at least 5µs. Usually, ENA+ and ENA- are NC (not connected). See “Connector P1 Configurations” for more information. t2: DIR must be ahead of PUL effective edge by 5µs to ensure correct direction;... -
Page 16: Appendix
DMA860H Fully Digital Stepper Drive Manual V1.0 DIP switch current setting is wrong The driver in fault Something wrong with motor coil Control signal is too weak Control signal is interfered Erratic motor motion Wrong motor connection Something wrong with motor coil...
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