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1. A Leadshine Technology Co Ltd M325 Micro Microstepping Driver Manual V2 0 A Leadshine Technology Co Ltd M325 Micro Microstepping Driver Manual V2 0 direction 3 t Pulse width not less than 5 0us APPENDIX 4 t4 Low level width not less than 5 0us Twelve Month Limited Warrant 11 Frequently Asked Questions WEE YOUR AMINE y In th T M395 d 7 i E E Geet E ETE E E E cian bl Leadshine Technology Co Ltd warrants its products against defects in materials and a g he i aoa ne laden apical a ag a j cis a eat i pee ae workmanship for a period of 12 months from shipment out of factory During the warranty period is electrical or mechanical in nature The next step is to isolate the system component that is causing ae i a Leadshine will either at its option repair or replace products which proved to be defective 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 Exclusions the troubleshooting process You may need this documentation to refer back to at a later date and these details will greatly assist our Technical Support staff in determining the problem should you The above warranty does not extend to any product damaged by reasons of improper or inadequate need assistance handlings by customer improper or inadequate customer wirings unauthorized modification or misuse or2. 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 labeling 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 0 100 KHz Tel 086 0755 26434369 l Web Site www leadshine com Tel 086 0755 26434369 2 A Leadshi
3. 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 e 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 i Leadshine Technology Co Ltd Controller M325 Micro Microstepping Driver Manual V2 0 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 t gt 5us L DEE High Level gt 3 5V UL PUL High Level gt 3 5V j ease Low Level lt 0 5V DIR Low Level lt 0 5V ENA Figure12 Sequence chart of control signals Notes 1 t ENA must be ahead of DIR by at least Sus logic HIGH as effective Generally ENA and ENA is NC not connected 2 tx DIR must be ahead of PUL effective trailing edge by at least Sus to ensure correct Tel 086 0755 26434369 10 Web Site www leadshine com
4. 0 Microstep resolution is set by SW 5 SW 6 of the DIP switch as shown in the following table 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 SW SW a ae OFF ON ON OTA ON OFF ON LIOA OFF OFF ON 1A ON ON OFF BIA OFF ON OFF 213A ON OFF OFF 2A 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
5. 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 Floor 3 Block 2 Nanyou Tianan Industry 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 cccccccccccccccccccccccccceccceeeeseeeeeeesseeeee
6. ble pulse mode set by inside jumper J2 this signal is counter clock CCW pulse effective for high level or low level set by inside jumper J1 For reliable motion response DIR signal when DIR LOW Please note that motion direction is also related to motor driver reverse motion direction should be ahead of PUL signal by Sus at least 4 5V when DIR HIGH 0 0 5V wiring match Exchanging the connection of two wires for a coil to the driver will Upto Col TI tt ety ical volt xe IS L amp V 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 Selecting Effective Pulse Edge or Effective Level and Control Signal Mode There are two jumpers J1 and J2 inside the M325 specifically for selecting effective pulse edge or effective level and control signal mode as shown in figure 2 Default setting is PUL DIR mode and upward rising edge effective b J1 short circuit J2 open circuit a J1 J2 open circuit PUL DIR mode and effective in upward rising edge PUL DIR mode and effective in downward falling edge n fe ey off 2 ft c J1 open circuit J2 short circuit d J1 J2short circuit CW CCW mode and effective CW CCW mode and effective in high level The fixed level in low level The fixed level Figure 2 J1 and J2 jumpers Tel 086 0755 26434369 3 Web Site www leadshine com A Leadshine Techn
7. e 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 Driver 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 112 3 4 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
8. essseaas rodic HON 355 4 cecsiescccatteicacathicianessiasare a E FEITE S ge seed E E gcse tice eee ak E E tc eaeeauebedouetes PIO OM GALLONS y 62 E Ree tata na Aco beat icent ant nai e Lata eat ea De CIC AVIOMG 2 sreneshnsssuss cdeananct aheestobse EE e rein Or tw 0 x6 BH x2 0 0 ks Meant nen ner ert ene Ore EO SE Operating Environment and Other Specifications ccccccesssssssssseccecseeeeeeees MeChainica lS PeCiiCa ONS redex Atta erte chet toh AEAT U EimnadonrofTIea nmeamen eeyer meets a Senne ner inne er ee nr ner er 3 Pin Assioniment atid Description sinsin nar A E Connector Pl Conti suraonss c cntaeicd eee a ic care ENE ea ee Selecting Effective Pulse Edge or Effective Level and Control Signal Mode Connector P2 Conn OuraliOns eeen A T 4 Control Signal Connector P1 Intertace x xscsecsceie es icicle eae 5 Connectine EMOTO ave eee een aia ie ee as COnnechOns 10 4 lead MOOS icc 2vecarsarieatictts Rotersien tres ccaniinre delete wade seta obectbedts Connections to 6 lead Motors js 25 icici wisdesindostet ht atiatiesbioaedesuateetaseeliades Hal Ol Ont Oration 265 2 saces ce E est soxetaasegunetine ota aaaes Pull C oil Comm euranons scau eines E Ono Connections to S lead MOOS x iiisel ateetacten sank dlamten torn etit aS Seres CW ONMECIIONS nen EAR N E Parallel COmneCOMUS es a E eaudesaetneceee Or Power Supply Selecion 2 cacti ee ee eee Regulated or Unregulated Power Supply ccccccccceecseeseese
9. esssssesssseeasaeeeeeeeees IVI TONG TTA CTS acena a a NElCCUING Supply VOM ASG aea sce E a a ec 7 Selecting Microstep Resolution and Driver Output Current ccccccccceeeeeeeees Mi rostep R solution SeleC MOI s5 te0 ont Sars thd dees ee ee A eer Corrent SCLIN O Sita stecercncssce E E cee esacteasensretnsacss Tel 086 0755 26434369 I Web Site www leadshine com Contents Dynamic Co UGr eit Seti 5208 is crete teaee Ves cee Satie oSaiaes cote lncaiiettes 9 Standstill C Wine i it eira idee ccsrcdtie eines A N E 9 BS WV TsO IN ORC See he Aiton ict ace E AT eases wea iees cao dea ast 9 Oe TY OCC OMMCCHOMS seesi A 10 10 Sequence Chart of Control Sitnals ooreen eee eee 11 Il Frequently Asked QUESTIONS arnir A a ee eee 12 Problem Symptoms and Possible Causes ccccccesceseeeeeesessesseesnsaeaeaeaeeeeeees 12 FAN ca og B D Gtammeencene mene er er cert rs er mer ne cer ern teats S 14 Twelve Monti Limited Warran yeee A T 14 EX CIUSIONS siaetnnoni n EE i E E E 14 Obamin Warranty SCnviCe enan a a cian ais 14 Waranty EIMAN ONS naeran e A et etaienrhes 14 Shipp pne Failed Produc esna a a O 14 Tel 086 0755 26434369 II Web Site www leadshine com D Loaiishins Technolngij Co Lia 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
10. 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 D Peeters SENNONGU Saree 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 chaining Its 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
11. ne Technology Co Ltd Operating Environment and Other Specifications M325 Micro Microstepping Driver Manual V2 0 Environment Avoid dust oil fog and corrosive gases 40 RH 90 RH Vibration 5 9m s Max 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 Web Site www leadshine com A Leadshine Technology Co Ltd 3 Pin Assignment and Description M325 Micro Microstepping Driver Manual V2 0 The M325 has two connectors connector P1 for control signals connections and connector 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 3 0us Series connect resistors for current limiting when 12V or 24V used Direction signal In single pulse mode this signal has low hig ge levels representing two directions of motor rotation in dou
12. ng motor connection Shipping Failed Pro du ct Something wrong with motor coil Current setting is too small losing steps If your product fail during the warranty period e mail customer service at tech leadshine com to Current setting is too small obtain a returned material authorization number RMA before returning product for service otor is undersized for the application Please include a written description of the problem along with contact name and address Send Acceleration is set too high failed product to distributor in your area or Leadshine Technology Co Ltd Floor 3 Block 2 Power supply voltage too low Nanyou Tianan Industry Park Nanshan Dist Shenzhen China Also enclose information regarding Inadequate EN E cooling the circumstances prior to product failure urrent reduction function not being utilized 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
13. nt 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 that 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 hav
14. ology Co Ltd Connector P2 Configurations M325 Micro Microstepping Driver Manual V2 0 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 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 Mic
15. operation beyond the electrical specifications of the product and or operation beyond Many of the problems that affect motion control systems can be traced to electrical noise controller i i environmental specifications for the product software errors or mistake in wiring Obtaining Warranty Service Problem Symptoms and Possible Causes To obtain warranty service a returned material authorization number RMA must be obtained from customer service at e mail tech leadshine com before returning product for service SO DOWEL Customer shall prepay shipping charges for products returned to Leadshine for warranty service Microstep resolution setting is wrong and Leadshine shall pay for return of products to customer vitch current setting is wrong Fault condition exists Warranty Limitations The driver is disabled Leadshine makes no other warranty either expressed or implied with respect to the product Motor phases may be connected in reverse Leadshine specifically disclaims the implied warranties of merchantability and fitness for a n current s etting IS wrong ee thing wrong with motor coil particular purpose Some jurisdictions do not allow limitations on how long and implied warranty Fv ee nee E lasts so the above limitation or exclusion may not apply to you However any implied warranty of aa eA eS eR merchantability or fitness is limited to the 12 month duration of this written warranty Control signal is interfered Wro
16. rostepping 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 Bt B NC Figure 6 6 lead motor half coil higher speed connections Full Coil Configurations The full coil configuration on a six lead motor should 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 Lead
17. shine 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 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 curre
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