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DMA860E Digital Stepper Drive User Manual

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through motor coils (even when motor is at standstill). Pulling or plugging connector P2 with power on will cause
extremely high back-EMF voltage surge, which may damage the drive.

9. Typical Connection

A complete stepping system should include stepping motor, stepping drive, power supply and controller (pulse
generator). A typical connection is shown as figure 9.

Figure 9: Typical connection

10. Sequence Chart of Control Signals

In order to avoid some fault operations and deviations, PUL, DIR and ENA should abide by some rules, shown as

following diagram:

Figure 10: Sequence chart of control signals

Summary of Contents for DMA860E

Page 1: ...ision 1 0 2016 China Leadshine Technology Co Ltd Address Floor 11 Block A3 Nanshan iPark Xueyuan Avenue 1001 Shenzhen Guangdong 518055 China Tel 86 755 26409254 Fax 86 755 26402718 Web www leadshine com Sales sales leadshine com Support tech leadshine com ...

Page 2: ...e While every precaution has been taken in the preparation of the book Leadshine assumes no responsibility for errors or omissions Neither is any liability assumed for damages resulting from the use of the information contained herein This document is proprietary information of Leadshine that is furnished for customer use ONLY Information in this document is subject to change without notice and do...

Page 3: ...r 4 5 2 Connections of 6 lead Motor 5 5 2 1 Half Coil Configuration 5 5 2 2 Full Coil Configuration 5 5 3 Connections of 8 lead Motor 5 5 3 1 Series Connection 5 5 3 2 Parallel Connection 6 6 Power Supply Selection 6 6 1 Regulated or Unregulated Power Supply 6 6 2 Power Supply Sharing 7 6 3 Selecting Supply Voltage 7 7 DIP Switch Configurations 7 7 1 Microstep Resolution Configurations 7 7 2 Outpu...

Page 4: ...for input control signals Input voltage 18 80VAC or 24 110VDC 16 selectable micro step resolutions of 400 51 200 via DIP switches 8 selectable output current settings of 2 4 7 2A via DIP switches Soft start with no jump when powered on Pulse input frequency up to 200 KHz TTL compatible and optically isolated inputs Automatic idle current reduction Protections for over voltage and over current 1 2 ...

Page 5: ...ght Approx 510g 1 13 lbs 2 3 Mechanical Specifications unit mm 1inch 25 4mm 112 4 Ф3 5 97 25 3 47 8 Figure 1 Mechanical specifications 151 112 42 5 22 5 4 5 Fan 57 Side mounting recommended for better heat dissipation 2 4 Elimination of Heat DMA860E reliable working temperature should be 60 140 F It is recommended to use automatic idle current mode to reduce motor heating That means set the SW4 pi...

Page 6: ... DIR HIGH 0 0 5V when DIR LOW Minimal direction setup time of 5μs Swapping the connection of two wires of a coil e g A and A to the drive will reverse motor direction DIR ENA Enable signal This signal is used for enabling disabling the drive High level 5V NPN control signal for enabling the drive and low level for disabling the drive PNP and Differential control signals are on the contrary namely ...

Page 7: ...ial and single ended inputs including open collector and PNP output The DMA860E has 3 optically isolated logic inputs which are located on connector P1 to accept line drive control signals These inputs are isolated to minimize or eliminate electrical noises coupled with the drive control signals Recommend using line drive control signals to increase noise immunity for the drive in interference env...

Page 8: ... to as half chopper In setting the drive output current multiply the specified per phase or unipolar current rating by 1 4 to determine the peak output current Figure 5 6 lead motor half coil higher speed connections 5 2 2 Full Coil Configuration The full coil configuration on a six lead motor should be used in applications where higher torque at lower speed is desired This configuration is also r...

Page 9: ...price of more noise and heating If the motion speed requirement is low it s better to use lower supply voltage to decrease noise heating and improve reliability 6 1 Regulated or Unregulated Power Supply Both regulated and unregulated power supplies can be used to supply the drive However unregulated power supplies are preferred due to their ability to withstand current surge and fast response for ...

Page 10: ... charge back Higher supply voltage can increase motor torque at higher speeds thus helpful for avoiding losing steps However higher voltage may cause bigger motor vibration at lower speed and it may also cause over voltage protection or even drive damage Therefore it is suggested to choose only sufficiently high supply voltage for intended applications 7 DIP Switch Configurations This drive uses a...

Page 11: ...maller than the dynamic current setting particularly under high speed condition 7 2 2 Idle Current Configuration SW4 is used to set motor idle current percentage At OFF position it means the standstill current is set to be 50 of the selected output current At ON position it means standstill current is set to be the same as the selected dynamic current The current automatically reduced to 50 of the...

Page 12: ... drive 9 Typical Connection A complete stepping system should include stepping motor stepping drive power supply and controller pulse generator A typical connection is shown as figure 9 Figure 9 Typical connection 10 Sequence Chart of Control Signals In order to avoid some fault operations and deviations PUL DIR and ENA should abide by some rules shown as following diagram Figure 10 Sequence chart...

Page 13: ...less than 2 5 s 11 Protection Functions To improve reliability the drive incorporates some built in protections features Priority Time s of Blink Sequence wave of red LED Description 1st 1 Over current protection activated when peak current exceeds the limit 2nd 2 Over voltage protection activated when drive working voltage is greater than 160VDC 3nd 3 Reserved When above protections are active th...

Page 14: ...s can be traced to electrical noise controller software errors or mistake in wiring Problem Symptoms and Possible Causes Symptoms Possible Problems Motor is not rotating No power Microstep resolution setting is wrong DIP switch current setting is wrong Fault condition exists The drive is disabled Motor rotates in the wrong direction Motor phases may be connected in reverse The drive in fault DIP s...

Page 15: ...ice Shipping Failed Products If your product fail during the warranty period please contact your seller for how and where to ship the failed product for warranty or repair services first you can also e mail customer service at tech leadshine com to obtain a returned material authorization number RMA before returning product for service Please include a written description of the problem along with...

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