user manual
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1. JIR CCW t 5ps Ean Low Level lt 0 5V ENA ENA PUL DIR CW CCW Figure 11 Sequence chart of control signals 11 A Leadshine Technology Co Ltd Remark a tl ENA must be ahead of DIR by at least Sus Usually ENA and ENA are NC not M880A Microstepping Driver Manual V1 0 connected See Connector P1 Configurations for more information b t2 DIR must be ahead of PUL effective edge by Sus to ensure correct direction c t3 Pulse width not less than 1 5us d t4 Low level width not less than 1 5us 11 Protection Functions To improve reliability the Drive incorporates some built in protections features Short voltage and Over voltage protection When power supply voltage is lower than 18VDC over voltage protection will be activated and power indicator LED will turn off When power supply voltage exceeds 94VDC over voltage protection will be activated and the Alarm indicator LED will turn on Over current Protection Protection will be activated when continuous current reaches to 16A Short Circuit Protection Protection will be activated in case of short circuit between motor coils or between motor coil and ground 12 Frequently Asked Questions In the event that your Drive 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 process2. lower heating smoother movement and have better performances at higher speed than most of the Drives in the markets It is suitable for driving 2 phase and 4 phase hybrid stepping motors Features Automatic idle current reduction 16 selectable resolutions in decimal and binary up to 51 200 steps rev Suitable for 2 phase and 4 phase motors Support PUL DIR and CW CCW modes Short voltage over voltage over current and short circuit protection High performance cost effective Supply voltage up to 72VDC Output current up to 7 8A Self adjustment technology Pure sinusoidal current control technology Pulse input frequency up to 300 KHz TTL compatible and optically isolated input Applications Suitable for a wide range of stepping motors from NEMA size 17 to 43 It can be used in various kinds of machines such as X Y tables labeling machines laser cutters engraving machines pick place devices and so on Particularly adapt to the applications desired with low noise low heating high speed and high precision 2 Specifications Electrical Specifications T 25 C 77 F A Leadshine Technology Co Ltd Operating Environment and other Specifications Mechanical Specifications unit mm inch M880A Microstepping Driver Manual V1 0 Avoid dust oil fog and corrosive gases 40 RH 90 RH Vibration 5 9m s Max Approx 570g 20 10 oz 151 5 945 97 3 819 23 5 0
3. 925 69 2 717 143 5 63 Figure 1 Mechanical specifications Recommend use side mounting for better heat dissipation Elimination of Heat Drive s reliable working temperature should be lt 70 C 158 F and motor working temperature should be lt 80 C 176 F OY senssrine Technology Co Ltd It is recommended to use automatic idle current mode namely current automatically reduce to M880A Microstepping Driver Manual V1 0 60 when motor stops so as to reduce Drive heating and motor heating The Drive must be mounted vertically to maximize heat sink area as shown in the following picture Use forced cooling method to cool the system if necessary Drive Case Important NOTE The driver must be mounted vertically onto a plate or a heat sinking to maximize heat sink area as shown in the above picture Please use additional heat sinking or cool fan if necessary 3 Pin Assignment and Description The M880A 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 More detailed descriptions of the pins and related issues are presented in section 4 5 9 Connector P1 Configurations Leadshine Technology Co Ltd M880A Microstepping Driver Manual V1 0 DIR signal In single pulse mode this signal has low high voltage levels representing two directions of motor rotation in dou
4. OOE E EE l 9 Typical Comme ction c cccccccsccssecsssssecessesessesececsesececsececsesucessvsucarscacavsucassvsucaraveecaveed 1 KERE IE cho are E E EAT Ay T EE OUST UN Iu E A ec TENET ane ee RETR Tose l 10 Sequence Chart of Control Signals c c ccccccccscssssessscsscsecessssesecessvscsceeevsvsesesevseeecees 11 Applications 0 sees ees ees senses eeseeseeseeseeseasaseseseseaeseseaesiesieniesiesieses l Ll Protec on Funcion Seenen a eee cated eC elt heart 12 DO C1 INC ONS i E l Short voltage and Over voltage protection c cccccsscssessssssecesseseceesessevseceesveeeeee 12 Electrical Specifications sss sessssisessssteessstreessstreessstreesstreesstreerstreesstreessstreessts l Overcurrent Protech Olsona A 12 Operating Environment and other Specifications sssssssssssrsesrserresreesresrresresnes 2 SHOP Cir COIL PEOLS CHO M sougeks an tealigect ret teal ataa ater ertrtae deel gwen rtaante anes 12 Mechanical Specifications sessessessseeessreesssreesssreesssrerssstersssterssteeessreesssreeessreens 2 12 Frequently Asked QuestiOns ci nolo haltech eee che 12 Eiiigiion o Ow hoch memaee ee omar eran etre O N errs errr 2 Problem Symptoms and Possible Causes ccccsscsssssesessesessesecessesecersvsecevscecevene 13 3 Pin Assignment and DeSCription 00ccccccceeeeeeeeeeeseeseeseeessseeeseseseseseeseeeeeeeeeees 3 Connector Pl Conmourauons serci iee eE a TEE EE EEE 3 Selecting Effective Pulse Edge or Effective Level
5. and Control Signal Mode 4 Connector P2 Conf OULAUOIS sressuraian ar sere eets eaten Scania geais as setae 4 4 Control Signal Connector P1 Interface a2 c04 cae en cen ees 4 5 Connecting the Motol rcrsrenanc a aE E Aa T T O A T O TA 5 Connections 104 lead MOOS eunes a dl aeneeiaess 5 Connections to 6 lead Motors cccssesssssncececeeeeeeeeeeesseeeeessnnnneeeeeeeeeeeeeeeeseeeeeeeas 6 Paf os RB ah rea uras goren eee ee oe me ee oe 6 Full Coil Configuranons 4sic ewes Pe Ae Re Oe 6 Connectioms 10 S lead Moro acreana a Seres CONMECHIONS eirinen En REEAit 7 Para MS rC ODN CONS apse ta Staal E E cea ans teu detastennasesenstnescead 7 6 Power Supply Selection i339 eden ec Gc 7 R gu lated or Unregulated Power Supply crnenerininmni nn a tien 8 M liPpIe DNES orainen AA AAA 8 DCIECEING SUPPI Volla Cea n E 8 7 Selecting Microstep Resolution and Drive Output Current cccccccceeeeeeeeees 8 Microstep ReSOlUNon Se lechiou r cece sourbesvseietcudseusteaeseieecideeurterees 9 CUI CAL SENO Soara 9 I I OY sensative Technology Co Ltd 1 Introduction Features and Applications M880A Microstepping Driver Manual V1 0 Introduction The M880A is a high performance microstepping Drive based on pure sinusoidal current control technology Owing to the above technology and the self adjustment technology self adjust current control parameters according to different motors the driven motors can run with smaller noise
6. 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 Drive 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 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 MC B B Figure 7 6 lead motor full coil higher torque connections A Leadshine Technology Co Ltd Connections to 8 lead Motors M880A Microstepping Driver Manual V1 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 pre
7. 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 User s Manual For application or use of any product or circuit described herein neither does it convey any license under its patent rights of others Mi 8 8 0 A 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 improve reliability function or design Leadshine does not assume any liability arising out of the C CAA 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 High Performance Microstepping Drive damages Version 1 0 2009 All Rights Reserved Attention Please read this manual carefully before using the Drive Leadshine Technology Co Ltd 2009 by Leadshine Technology Company Limited All Rights Reserved Contents Contents Table of Contents Dynamic CURT EIU SCULIING sector pen E E RR 10 Standstill current SCtUNO exer scene aie eee A ieee ees is 10 1 Introduction Features and Applications cssssssssestestiesiestistiestietissinstetie l E E N O 10 VM OAC EN ON eset EEE AEE AE
8. ated 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 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 Drive 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 Drive 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 Drives It is recommended to have multiple Drives 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 Drives Instead please connect them to power supply separately Selecting Supply Voltage The power MOSFETS inside the M880A can actually operate within 24 80VDC 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 s
9. ble pulse mode set by inside jumper J1 this signal is counter clock CCW pulse active at high level or low level set by inside jumper J3 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 Drive wiring match Exchanging the connection of two wires for a coil to the Drive will reverse motion direction Selecting Effective Pulse Edge or Effective Level and Control Signal Mode There are two jumpers J1 and J3 inside the M880A specifically for selecting active pulse edge or effective level and control signal mode as shown in figure 2 Default setting is PUL DIR mode and upward rising edge active Note J2 inside the Drive is used to reverse the default rotation direction TRESE Boll a J1 J3 open circuit b J1 open circuit J3 shirt circuit PUL DIR mode and Active at rising edge NPN PUL DIR mode and active at falling edge NPN Te Mou c JI short circuit J3 open circuit d J1 J3short circuit CW CCW mode and active at low level The fixed level CW CCW mode and active at high level The fixed level Figure 2 J1 and J3 jumpers Connector P2 Configurations Motor Phase B 4 Control Signal Connector P1 Interface The M880A can accept differential and single ended inputs including open collector and PNP output The M880A has 3 optically isolated logic inputs which are located on
10. connector P1 to accept A Leadshine Technology Co Ltd M880A Microstepping Driver Manual V1 0 line Drive control signals These inputs are isolated to minimize or eliminate electrical noises coupled onto the drive control signals Recommend use line Drive control signals to increase noise immunity of the Drive in interference environments In the following figures connections to open collector and PNP signals are illustrated Driver vcc O Figure 4 Connection to PNP signal common cathode 5 Connecting the Motor The M880A can drive any 2 phase and 4 phase 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 Drive output current multiply the specified phase current by 1 4 to determine the peak output current A Leadshine Technology Co Ltd M880A Microstepping Driver Manual V1 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
11. peeds 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 and it is suggested to use power supplies with theoretical output voltage of 24 72VDC leaving room for power fluctuation and back EMF 7 Selecting Microstep Resolution and Drive Output Current This Drive uses an 8 bit DIP switch to set microstep resolution and motor operating current as shown below Dynamic Current Microstep Resolution rA 1 2 3 4 5 e 7 8 Standstill Current half full D Leacsnine Technology Eo 1a M880A Microstepping Driver Manual V1 0 Microstep Resolution Selection Microstep resolution is set by SWS 6 7 8 of the DIP switch as shown in the following table Microstep Steps rev for 1 8 motor SWS SW6 S W7 SWB o2 o Ww N N N N 4 800 OF ON ON ON 8 1600 ON OFF N ON Pe or orr ON ON Current Settings For a given motor higher Drive current will make the motor to output more torque but at the same time causes more heating in the motor and Drive 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 Drive outpu
12. t current depending on motor phase current motor leads and connection methods Phase current rating supplied by motor manufacturer is important in selecting Drive 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 A Lastnina Technology Eaa M880A Microstepping Driver Manual V1 0 Dynamic current setting BBA AFF ON ON TBA BAF 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 setting 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 one second after the last pulse Theoretically this will reduce motor heating to 36 due to P I R of the original value If the application needs a different standstill current please contact Leadshine 8 Wiring Notes In order to improve anti interference performance of the Drive it 1s recommended to use twisted pair shield cable To prevent noise incurred in PUL DIR signal pulse direction signal wires and motor wires should not be tied up together It is bet
13. ter 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 Drives separately connecting the Drives is recommended instead of daisy chaining It is prohibited to pull and plug connector P2 while the Drive 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 Drive 10 A Leadshine Technology Co Ltd 9 Typical Connection M880A Microstepping Driver Manual V1 0 A complete stepping system should include stepping motor stepping Drive power supply and controller pulse generator A typical connection is shown as figure 10 Controller M860 Driver 2702 VCCo PUL ee ee Y aes DIR 2702 n m 2a 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 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 t 25us Stee ote High Level gt 3 5V l I PUL PUL CW i High Level gt 3 5V Low Level lt 0 5V
14. vent over heating P2 A 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 M880A can match medium and small size stepping motors from NEMA frame size 17 to 43 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 A Leadshine Technology Co Ltd M880A Microstepping Driver Manual V1 0 requirement is low it s better to use lower supply voltage to decrease noise heating and improve reliability Note MEANWELL DRP 480S 48 48VDC 480Watt power supply must be selected in order to make the whole system comply with UL standards for safety Regulated or Unregulated Power Supply Both regul
15. 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 these details will greatly assist our Technical Support staff in determining the problem should you need assistance Many of the problems that affect motion control systems can be traced to electrical noise controller software errors or mistake in wiring 12 D Castiahina Technolog Cos 1a M880A Microstepping Driver Manual V1 0 Problem Symptoms and Possible Causes Microstep resolution setting is wrong Fault condition exists Motor phases may be connected in reverse Something wrong with motor coil Control signal is interfered Something wrong with motor coil Current setting is too small Acceleration is set too high Inadequate heat sinking cooling Current is set too high
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