User's Manual
Contents
1. 6 Power Supply Selection The M325 can match medium and small size stepping motors from Nema size 14 to 23 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 Generally speaking supply voltage determines the high speed performance of the motor while output current determines the output torque of the driven motor particularly at lower speed Higher supply voltage will allow higher motor speed to be achieved at the 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 Tel 086 0755 26434369 6 Web Site www leadshine com A Leadshine Technology Co Ltd Regulated or Unregulated Power Supply M325 Micro Microstepping Driver Manual V2 0 Both regulated and unregulated power supplies can be used to supply the driver However unregulated power supplies are preferred due to their ability to withstand current surge If regulated power supplies such as most switching supplies are indeed used it is important to have large current output rating to avoid problems like current clamp for example using 4A supply for 3A motor driver operation On the other hand if unregulated supply is used one may use a power supply of lower current rating than that of motor typically 50 70 of motor current The reason is th2. L SIZTId IS LOO WCak ae lasts so the above limitation or exclusion may not apply to you However any implied warranty of Control signal is interfered pi a y PPly y y 1mp y m ose merchantability or fitness is limited to the 12 month duration of this written warranty v vrong motor connection Something wrong with motor coil Shipping Failed Product Current setting is too small losing steps Current setting 1s too small If your product fail during the warranty period e mail customer service at tech leadshine com to for is undersized for the applicatio obtain a returned material authorization number RMA before returning product for service Acceleration is set too high Please include a written description of the problem along with contact name and address Send Power supply voltage too low failed product to distributor in your area or Leadshine Technology Co Ltd Floor 3 Block 2 y Nanyou Tianan Industrial Park Nanshan Dist Shenzhen China Also enclose information Inadequate heat sinking c current reduction function not being utilized regarding the circumstances prior to product failure Current is set too high Tel 086 0755 26434369 11 Web Site www leadshine com Tel 086 0755 26434369 12 Web Site www leadshine com
3. PPOAUCDs ccitoewenactowaieheowesactommictenwesactaumicheotesactoumieteomesactouts 12 Tel 086 0755 26434369 II Web Site www leadshine com D Heaters Techncagy Ca La M325 Micro Microstepping Driver Manual V2 0 1 Introduction Features and Applications Introduction The M325 is a very small size high performance microstepping driver based on one of the most advanced technologies in the world today It s suitable for driving any 2 phase and 4 phase hybrid stepping motors By using advanced bipolar constant current chopping technique it can output more speed and power from the same motor compared with traditional drivers such as L R drivers Its 3 state current control technology allows coil currents to be well controlled with relatively smaller current ripple therefore less motor heating is achieved Features High performance 3 state current control technology for less Low cost motor heating Supply voltage up to 24VDC 4 selectable microstep resolutions 1 2 4 8 Output current up to 2 5A PUL DIR amp CW CCW mode optional Pulse frequency up to 100 KHz Suitable for 2 phase and 4 phase motors Input signals TTL compatible and optically DIP switch current setting with 7 different isolated values Automatic idle current reduction Small size 86 55 20mm Applications Suitable for a wide range of stepping motors from NEMA size 14 to 23 which used in various kinds of machines such as X Y tables labeli
4. at upward rising edge PUL DIR mode and active at downward falling edge All of ef c J1 open circuit J2 short circuit d J1 J2short circuit CW CCW mode and active CW CCW mode and active at high level The fixed level at low level The fixed level Figure 2 J1 and J2 jumpers Tel 086 0755 26434369 3 Web Site www leadshine com A Leadshine Technology Co Ltd M325 Micro Microstepping Driver Manual V2 0 Connector P2 Configurations Sen eee TOUTIG Motor Phase B DC power supply 12 24VDC Including voltage fluctuation and EMF voltage 4 Control Signal Connector P1 Interface The M325 uses opto couplers to increase noise immunity and interface flexibility If the opto couplers supply voltage is higher than 5V a current limiting resistor needs to be connected at each input signal to prevent overheating the opto couplers In the following figures connections to open collector and difference controller are illustrated Controller R 0 if VCC 5V R 1K Power gt 0 125W if VCC 12V R 2K Power gt 0 125W if VCC 24V R must be connected to control signal terminal Figure 3 Connections to open collector signal common anode R 0 if VCC 5V R 1K Power gt 0 125W if VCC 12V R 2K Power gt 0 125W if VCC 24V R must be connected to control signal terminal Figure 4 Connections to difference control signal 5 Connecting the Motor The M325 driver can drive any 2 pahse and 4 pahse hybrid stepping
5. to be defective need assistance The above warranty does not extend to any product damaged by reasons of improper or inadequate handlings by customer improper or inadequate customer wirings unauthorized modification or Many of the problems that affect motion control systems can be traced to electrical noise controller oe misuse or operation beyond the electrical specifications of the product and or operation beyond software errors or mistake in wiring environmental specifications for the product Problem Symptoms and Possible Causes Obtaining Warranty Service To obtain warranty service a returned material authorization number RMA must be obtained Ste tere from customer service at e mail tech leadshine com before returning product for service Microstep resolution setting is wrong Customer shall prepay shipping charges for products returned to Leadshine for warranty service DIP switch current setting is wrong and Leadshine shall pay for return of products to customer Fault condition exists The driver is disabled Warranty Limitations Motor phases may be connected in reverse e Leadshine makes no other warranty either expressed or implied with respect to the product nt setting is wrong Something wrong with motor coil Leadshine specifically disclaims the implied warranties of merchantability and fitness for a eae er nnee 2 particular purpose Some jurisdictions do not allow limitations on how long and implied warranty CONUO
6. N ON OFF BIA OFF ON OFF es ON OFF OFF 252A OFF OFF OFF Notes Due to motor inductance the actual current in the coil may be smaller than the dynamic current setting particularly under high speed condition Standstill Current SW4 is used for this purpose OFF meaning that the standstill current is set to be half of the selected dynamic current and ON meaning that standstill current is set to be the same as the selected dynamic current The current automatically reduced to 60 of the selected dynamic current 0 2 second after the last pulse Theoretically this will reduce motor heating to 36 due to P I R of the original value If Tel 086 0755 26434369 8 Web Site www leadshine com A Leadshine Technology Co Ltd M325 Micro Microstepping Driver Manual V2 0 the application needs a different standstill current please contact Leadshine 8 Wiring Notes In order to improve anti interference performance of the driver it is recommended to use twisted pair shield cable To prevent noise incurred in pulse dir signal pulse direction signal wires and motor wires should not be tied up together It is better to separate them by at least 10 cm otherwise the disturbing signals generated by motor will easily disturb pulse direction signals causing motor position error system instability and other failures If a power supply serves several drivers separately connecting the drivers is recommended instead of daisy ch
7. User s Manual For M3295 Micro Microstepping Driver Version 2 0 2000 All Rights Reserved Attention Please read this manual carefully before using the driver Leadshine Technology Co Ltd 3 F Block 2 Nanyou Tianan Industrial Park Nanshan Dist Shenzhen China T 86 755 26434369 F 86 755 26402718 Web site www leadshine com E Mail sales leadshine com The content in this manual has been carefully prepared and is believed to be accurate but no responsibility is assumed for inaccuracies 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 Leadshine s general policy does not recommend the use of its products in life support or aircraft applications wherein a failure or malfunction of the product may directly threaten life or injury According to Leadshine s terms and conditions of sales the user of Leadshine s products in life support or aircraft applications assumes all risks of such use and indemnifies Leadshine against all damages 2000 by Leadshine Technology Company Limited All Rights Reserved Contents Table of Contents 1 Introduction Features and Applications ccccccccccecceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
8. aining It is prohibited to pull and plug connector P2 while the driver is powered ON because there is high current flowing 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 driver 9 Typical Connections A complete stepping system should include stepping motor stepping driver power supply and controller pulse generator The following figures are two typical connections of the M325 Controller M325 Driver DC Power 12V to 24V A Stepper Motor Bt R 0 if VCC 5V R 1K Power gt 0 125W if VCC 12V R 2K Power gt 0 125W if VCC 24V R must be connected to control signal terminal Figure 10 Typical connection with open collector controller Tel 086 0755 26434369 9 Web Site www leadshine com A Leadshine Technology Co Ltd M325 Micro Microstepping Driver Manual V2 0 Controller M325 Driver Stepper Motor R 0 if VCC 5V R 1K Power gt 0 125W if VCC 12V R 2K Power gt 0 125W if VCC 24V R must be connected to control signal terminal Figure 11 Typical connection with difference controller 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 the following diagram PUL a ENA Figurel2 Sequence chart of cont
9. at the driver draws current from the power supply capacitor of the unregulated supply only during the ON duration of the PWM cycle but not during the OFF duration Therefore the average current withdrawn from power supply is considerably less than motor current For example two 3A motors can be well supplied by one power supply of 4A rating Multiple Drivers It is recommended to have multiple drivers to share one power supply to reduce cost if the supply has enough capacity To avoid cross interference DO NOT daisy chain the power supply input pins of the drivers Instead please connect them to power supply separately Attention NEVER connect power and ground in the wrong direction as it will damage the M325 Selecting Supply Voltage The power MOSFETS inside the M325 can actually operate within 12V 24VDC 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 However higher voltage may cause bigger motor vibration at lower speed and it may also cause over voltage protection or even driver damage Therefore it is suggested to choose only sufficiently high supply voltage for intended applications and it is suggested to use power supplies with theoretical output voltage of 12 20V leaving room for power fluctuation and back EMF 7 Selecting Microstep Resolution and Dri
10. d be used in applications where higher torque at lower speeds is desired This configuration is also referred to as full copper In full coil mode the motors should be run at only 70 of their rated current to prevent over heating P2 A 4 NC B B Figure 7 6 lead motor full coil higher torque connections Tel 086 0755 26434369 5 Web Site www leadshine com A Leadshine Technology Co Ltd Connections to 8 lead Motors M325 Micro Microstepping Driver Manual V2 0 8 lead motors offer a high degree of flexibility to the system designer in that they may be connected in series or parallel thus satisfying a wide range of applications Series Connections A series motor configuration would typically be used in applications where a higher torque at lower speeds is required Because this configuration has the most inductance the performance will start to degrade at higher speeds In series mode the motors should also be run at only 70 of their rated current to prevent over heating P2 A B B Figure 8 8 lead motor series connections Parallel Connections An 8 lead motor in a parallel configuration offers a more stable but lower torque at lower speeds But because of the lower inductance there will be higher torque at higher speeds Multiply the per phase or unipolar current rating by 1 96 or the bipolar current rating by 1 4 to determine the peak output current Figure 9 8 lead motor parallel connections
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12. motors Connections to 4 lead Motors 4 lead motors are the least flexible but easiest to wire Speed and torque will depend on winding inductance In setting the driver output current multiply the specified phase current by 1 4 to Tel 086 0755 26434369 4 Web Site www leadshine com i Leadshine Technology Co Ltd determine the peak output current M325 Micro Microstepping Driver Manual V2 0 P2 A B B Figure 5 4 lead Motor Connections 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 The higher torque configuration or full coil uses the full windings of the phases Half Coil Configurations As previously stated the half coil configuration uses 50 of the motor phase windings This gives lower inductance hence lower torque output Like the parallel connection of 8 lead motor the torque output will be more stable at higher speeds This configuration is also referred to as half chopper In setting the driver output current multiply the specified per phase or unipolar current rating by 1 4 to determine the peak output current P2 A A NC B B NC Figure 6 6 lead motor half coil higher speed connections Full Coil Configurations The full coil configuration on a six lead motor shoul
13. ng machines laser cutters engraving machines pick place devices and etc It s specially adapted to the applications desired with low vibration high speed and high precision 2 Specifications Electrical Specifications Tj 25 C Supply voltage 12 24 VDC Pulse input frequency O 100 KHz Tel 086 0755 26434369 l Web Site www leadshine com M325 Micro Microstepping Driver Manual V2 0 Avoid dust oil fog and corrosive gases A Leadshine Technology Co Ltd 40 RH 90 RH Operating Environment and Other Specifications ES Vibration 5 9m s Max Environment Humidity Approx 150 gram 5 3 oz Mechanical Specifications unit mm inch 25 4 mm Figure 1 Mechanical dimensions Recommend use side mounting for better heat dissipation Elimination of Heat Driver s reliable working temperature should be lt 65 C motor working temperature should be lt 80 C Recommend use automatic half current mode namely current automatically be reduced to 60 when motor stops so as to decrease driver heating and motor heating Recommend use side mounting to maximize heatsink area Tel 086 0755 26434369 2 Web Site www leadshine com A Leadshine Technology Co Ltd M325 Micro Microstepping Driver Manual V2 0 3 Pin Assignment and Description The M325 has two connectors connector P1 for control signals connections and connecto
14. r P2 for power and motor connections The following tables are brief descriptions of the two connectors of the M325 More detailed descriptions of the pins and related issues are presented in section 4 5 9 Connector P1 Configurations Ser sistors for current limiting when 12V or 24V used Direction signal In single pulse mode this signal has low high voltage levels representing two directions of motor rotation in double pulse mode set by inside jumper J2 this signal is counter clock CCW pulse active at high level or low level set by inside jumper J1 For reliable motion response DIR signal should be ahead of PUL signal by Sus at least 4 5V when DIR HIGH 0 0 5V when DIR LOW Please note that motion direction is also related to motor driver wiring match Exchanging the connection of two wires for a coil to the driver will reverse motion direction and the typical voltage is Enable signal This signal is used for enabling disabling driver High level for enabling driver and low level for disabling driver Usually left unconnected enabled Select Active Edge or Active Level and Control Signal Mode There are two jumpers J1 and J2 inside the M325 specifically for selecting active edge or active level and control signal mode as shown in figure 2 Default setting is PUL DIR mode and upward rising edge active a J1 J2 open circuit b J1 short circuit J2 open circuit PUL DIR mode and active
15. rol signals Notes 1 t ENA must be ahead of DIR by at least Sus Usually ENA and ENA are NC not connected See Connector P1 Configurations for more information 2 tz DIR must be ahead of PUL effective edge by at least 5us to ensure correct direction Tel 086 0755 26434369 10 Web Site www leadshine com Dronswiva recrmoeasce ss asa Ming Dn Maal 20 anre ee 3 3 High level width not less than 5 0us 4 t4 Low level width not less than 5 0us APPENDIX M325 Micro Microstepping Driver Manual V2 0 11 Frequently Asked Questions Twelve Month Limited Warranty In the event that your M325 doesn t operate properly the first step is to identify whether the problem is electrical or mechanical in nature The next step is to isolate the system component that is causing the problem As part of this process you may have to disconnect the individual components that make up your system and verify that they operate independently It is important to document each step in the troubleshooting process You may need this documentation to refer back to at a later date and Exclusions these details will greatly assist our Technical Support staff in determining the problem should you Leadshine Technology Co Ltd warrants its products against defects in materials and workmanship for a period of 12 months from shipment out of factory During the warranty period Leadshine will either at its option repair or replace products which proved
16. tion seres ie ees i a Reoulated or Unregulated Power Supply wecteveccecen teen erecta teen tet ectceus acne rected Multiple DiN iS amen tee nese a eno oS Sen Seen ee one Selecting Supply VONAGE crass a lan anpomehay a onecenn sa oneaeae 7 Selecting Microstep Resolution and Driver Output Current ccceeeeeeeeeees Microstep Resolution Selection merie 24x eit ators atelier E ES Current SC UNOS peccieecpentiaccteactvecvenclasctencteecvenelacabentlaecvennlacteacVesctenelaceacVescrenelancecs Tel 086 0755 26434369 I Web Site www leadshine com Contents Dynamo Curent Set IN Os ceed T T TE 8 Stands HEC OTEN EE a E caruedenateoltensemmnaantens 8 S WV TEATS NOTES 55 fac sere techn E EEE ETE EE E EN 9 TYPE AE OMe CLIOIS na a E N N N 9 10 Sequence Chart of Control SiO a IS asciscchsevascnasadanauhoaueneasadanathsauaneasadarathoareienanauts 10 Li Frequently ASked QUES HONS anina E T nareeauerassennarees 11 Problem Symptoms and Possible Causes nnnnnnnnnnnnennneenrenrrrrrrerrrerrrrrerrrreen 1 APPEND Bear een rnr ema ee Man ee tore oe ANOLON TAY SUIT SOON ME MST SION Oar MIE TT ROL OY SAA SOE 12 Twelve Month Limited Warranty cccccccccccccccccscceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeseseeeeess 12 EXCLUSIONS 5a tan gareesscta cece Wensacsebacchen E ec Rae 12 Obtaining Warranty Service sonics ontario wnt Wocrten mnt Wortes manos 12 Waranty AsimMita Ons ccchy occu foc A tec e ct eee ence ete tae cece heseer 12 Snipp Malle CO
17. ver Output Current This driver uses a 6 bit DIP switch to set microstep resolution and motor operating current as shown below Dynamic Current Microstep Resolution 1 2 3j4 5 6 Standstill Current half full Tel 086 0755 26434369 7 Web Site www leadshine com A Leadshine Technology Co Ltd Microstep Resolution Selection M325 Micro Microstepping Driver Manual V2 0 Microstep resolution is set by SW 5 SW 6 of the DIP switch as shown in the following table 200 ON ON OFF ON ON OFF OFF OFF Current Settings For a given motor higher driver current will make the motor to output more torque but at the same time causes more heating in the motor and driver Therefore output current is generally set to be such that the motor will not overheat for long time operation 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 Phase current rating supplied by motor manufacturer is important in selecting driver current however the selection also depends on leads and connections The first three bits SW1 2 3 of the DIP switch are used to set the dynamic current Select a setting closest to your motor s required current Dynamic Current Setting Peak current A SWE SW2 0 SW 039A OFF ON ON ons ON OFF ON ce OFF OFF ON LRA O
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