M542 V1.0
Contents
1. 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 SWS5 SW6 SW7 Sws 2 400 ON ON ON ON 4 800 ON OFF ON ON 8 1600 ON ON OFF ON 16 3200 ON OFF OFF ON 32 6400 ON ON ON OFF 64 12800 ON OFF ON OFF 128 25600 ON ON OFF OFF 256 51200 ON OFF OFF OFF 5 1000 OFF ON ON ON Tel 086 0574 55008735 8 Web Site www nc tech cc v JIES M542 V1 0 Microstepping Driver Manual V1 0 So OFF ON OFF ON a OFF OFF OFF ON Bo 25001 OFF ON ON OFF Pe a or OFF GN Grr 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 o s CC cc o ON ON O S l e S o ON ON Oo n O a o OFF ON or OFF ON ev on2. Enma ono Hea en a a a a a N 2 5 Pim Assisiinent and Desc ripi OMen a E E 3 Connector P1 Configurations Selecting Active Pulse Edge or Active Level and Control Signal Mode Connector P2 Configurations 4 Control Signal Connector P1 Inter acsem a aea 5 Connecting the Motor Connections to 4 lead Motors Connections to 6 lead Motors alia oil Connora ons 56 45 is elec 2S Geno os ect E ele Bilas 5 F l Coil Contigurai ons nsin A EE a a ia E Raa 6 Connections to 8 lead Motors Series Connections Parallel Connections 6 POwWer SUPpPly Sele CH OM ess ses3sac ce cctsea ante ce E TE i todeaeaias alacant a Regulated or Unregulated Power Supp ly ccccccccsssseeeeeeececeeeeeeeeeeeeeeeeaaeaeaas I Multiple Drivers Selecting Supply Voltage 7 Selecting Microstep Resolution and Driver Output Current Microstep Resolution Sele CH OMiivessecasscesesctasnvecnasnerded taiacsnawmatiadetenarnenantauseonses 8 Current Settings Contents Dynamic CULLCTIC SUN erste ss oiceccc a a E A Bak etwedion 9 StandsSo MC ummenl SST iG so sn cas as Ai A E E T NEONA 9 SNIS INN OC St asso E ee ae ae es aes hae 10 ADEA CONNEC 6 a eee ene eee aS me oR Crane NN Renee ene eC Eee Te NE NE 10 10 Sequence Chart of COnMOlStonals sssi A 1 Ml PRO LECTION FUNCIONS eyd ete E So h tll le ee id el lle 11 Short voltage and Over voltage protection eseeeeeessessssssssssssesssssesetesseeerererene 11 Overcurrent PROTEC TOMS einen tannic sod sti
3. any product damaged by reasons of improper or inadequate handlings by customer improper or inadequate customer wirings unauthorized modification or misuse or operation beyond the electrical specifications of the product and or operation beyond environmental specifications for the product Obtaining Warranty Service To obtain warranty service a returned material authorization number RMA must be obtained from customer service at e mail mculang 163 com before returning product for service Customer shall prepay shipping charges for products returned to Nachuan for warranty service and Nachuan shall pay for return of products to customer Warranty Limitations Nachuan makes no other warranty either expressed or implied with respect to the product Nachuan specifically disclaims the implied warranties of merchantability and fitness for a particular purpose Some jurisdictions do not allow limitations on how long and implied warranty lasts so the above limitation or exclusion may not apply to you However any implied warranty of merchantability or fitness is limited to the 12 month duration of this written warranty Shipping Failed Product If your product fail during the warranty period e mail customer service at mculang 163 com to obtain a returned material authorization number RMA before returning product for service Please include a written description of the problem along with contact name and address Send failed product to dis
4. ON OFF sr o aA oF ON OFF re o OFF OFF ak o O o oor 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 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 Tel 086 0574 5500873 5 9 Web Site www nc tech cc v M542 V1 0 Microstepping Driver Manual V1 0 RHS Pa 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 PI R of the original value If the application needs a different standstill current please contact Nachuan 8 Wiring Notes l In order to improve anti interference performance of the driver it is recommended to use twisted pair shield cable l To prevent noise incurred in PUL DIR signal pulse direction signal wires and motor wires should not be tied up together Itis 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 l If a power supply serves several drivers separately connecting the drivers is recommended instead of daisy chaining l It is prohibite
5. User s Manual M542 V1 0 High Performance Microstepping Driver Version 1 0 2011 All Rights Reserved Attention Please read this manual carefully before using the driver T 86 574 55008735 F 86 574 55008730 Web site www nc tech cc E Mail mculang 163 com The content in this manual has been carefully prepared and is believed tobe accurate but no responsibility is assumed for inaccuracies Nachuan reserves the right to make changes without further notice to any products herein to improve reliability function or design Nachuan 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 Nachuan 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 Nachuan s terms and conditions of sales the user of Nachuan s products in life support or aircraft applications assumes all risks of such use and indemnifies Nachuan against all damages 2011 by Nachuan Technology Company Limited All Rights Reserved Contents Table of Contents 1 Introduction Features and Applications Introduction Features Applications DA SPC CIC AM OMS ea a l Electrical Specifications Operating Environment and other Specifications Mechanical Specifications
6. aeseauasnenedletetasuioessanes 12 SHOL Circuit Prove CHON so ci cccatc act acasnens scan A ol ventana wnuihoee veer ecb nduuiunanotin 12 2 Freguenti y Asked OQUCS TOS eisien a a a e aieh 12 Problem Symptoms and Possible Causes ccccccccssssssssseeeseeeseseseeseeceeeeeeeeeeees 13 PP PEIN Xsan tisce coe heeds are E E Ee ee 14 Twelve Month Limited Warranty ccccccsccssssseeeeceeeeceeeeeeeeeeeeeeeeseaaeeeaaaaaaas 14 PE CIIS ONS nannies datas ate sta cuoasiles a heh idiaaienancatnade 14 Obtaming Warranty Serv CE oane son nasi che Seeds alte eee 14 Warranty Tigi tat DS 4 scsi 25954 Sos A a caiaddeleant dl ssebeaeie aes dacs 14 COE ll SRR CRN Me ee RTE Teme a ce ea nC ee nr mere ae e ee ae renner mee 15 I v AIR M542 V1 0 Microstepping Driver Manual V1 0 1 Introduction Features and Applications Introduction The M542 V2 0 is a high performance microstepping driver 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 lower heating smoother movement and have better performances at higher speed than most of the drivers in the markets It is suitable for driving 2 phase and 4 phase hybrid stepping motors Features Automatic idle current reduction 115 selectable resolutions in decimal and binary up to 25 600 steps rev l Su
7. be well supplied by one power supply of 4A rating Tel 086 0574 55008735 fi Web Site www nc tech cc v oh BLS M542 V1 0 Microstepping Driver Manual V1 0 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 Selecting Supply Voltage The power MOSFETS inside the M542 V1 0 can actually operate within 20 50VDC 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 andit is suggested to use power supplies with theoretical output voltage of 20 45VDC leaving room for power fluctuation and back EMF 7 Selecting Microstep Resolution and Driver Output Current This driver uses an 8 bit DIP switch to set microstep resolution and motor operating current as shown below Dynamic Current Microstep Resolution gpa 1 2 3 4 5 6 7 8 Standstill Current half full Microstep Resolution Selection
8. d 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 Connection A complete stepping system should include stepping motor stepping driver power supply and controller pulse generator A typical connection is shown as figure 10 Controller M542 V2 0 20 45 VDC A Stepping Motor B m 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 Tel 086 0574 55008735 10 Web Site www nc tech cc v ooh Fl ty M542 V1 0 Microstepping Driver Manual V1 0 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 25ps t t ma High Level gt 3 5V na eI PUL PUL CW Low Level lt 0 5V H High Level gt 3 5V ity OLS DIR JIR CCW t 75ps Low Level lt 0 5V ENA ENA PUL DIR CW CCW Figure 11 Sequence chart of control signals Remark a tl ENA must be ahead of DIR by at least 5ocs Usually ENA and ENA are NC not connected See Connector P1 Configurations for more information b t2 DIR must be ahead of PUL e
9. ffective edge by 5s to ensure correct direction c t3 Pulse width not less than 1 5ocs d t4 Low level width not less than 1 5 s 11 Protection Functions To improve reliability the driver incorporates some built in protections features Short voltage and Over voltage protection When power supply voltage is lower than 16VDC short voltage protection will be activated and the power indicator LED will turn off When the power supply voltage is back to normal operation range the driver will automatically reset and power indicator LED will turn on When power supply voltage exceeds 52VDC over voltage protection will be activated and power indicator LED will turn red Tel 086 0574 5500873 5 11 Web Site www nc tech cc v AK JIIRHS M542 V1 0 Microstepping Driver Manual V1 0 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 When above protections are active the motor shaft will be free or the LED will turn red except short voltage protection Reset the driver by repowering it to make it function properly after removing above problems 12 Frequently Asked Questions In the event that your driver 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 s
10. itable for 2 phase and 4 phase motors Support PUL DIR and CW CCW modes Short voltage over voltage over current protections High performance cost effective Supply voltage up to 50 VDC Output current up to 4 2A 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 34 It can be used in various kinds of machines such as X Y tables engraving machines labeling machines laser cutters 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 Tj 25 C 77T Web Site www nc tech cc Tel 086 0574 55008735 l v M542 V1 0 Microstepping Driver Manual V1 0 WIREH Operating Environment and other Specifications Ambient Temperature Operating Temperature a UH e ose We chased Spectitions unit mm inch 118 4 646 75 5 2 972 47 8 1 882 112 4 409 Figure 1 Mechanical specifications Recommend use side mounting for better heat dissipation Elimination of Heat l Driver s reliable working temperature should be lt 70 C 158 F and motor working temperature should be lt 80 C 176 F l It is recommended to use automatic idle current mode name
11. ly current automatically reduce to 60 when motor stops so as to reduce driver heating and motor heating Tel 086 0574 55008735 2 Web Site www nc tech cc v RHS M542 V1 0 Microstepping Driver Manual V1 0 l It is recommended to mount the driver vertically to maximize heat sink area Use forced cooling method to cool the system 1f necessary 3 Pin Assignment and Description The M542 V1 0 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 DIR signal In single pulse mode this signal has low bigh voltage levels representing two directions of motor rotation in double pulse mode set by inside jumper J3 this signal is counter clock CCW pulse active at high level or low level set by inside jumper J1 J2 For reliable motion response DIK signal should be ahead of PUL signal by Sus at least 4 5V when DIK HIGH 0 0 5V when DIR LOW Please note that rotation 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 Selecting Active Pulse Edge or Active Level and Control Signal Mode There are two jumpers inside the M542 V1 0 specifically for selectingcontrol signal mode a
12. pend on winding inductance In setting the driver output current multiply the specified phase current by 1 4 to determine the peak output current P2 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 Tel 086 0574 55008735 5 Web Site www nc tech cc v AA JIIRHS M542 V1 0 Microstepping Driver Manual V1 0 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 i 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 moto
13. round 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 Regulated or Unregulated Power Supply 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
14. rs should be run at only 70 of their rated current to prevent over heating P2 A a NC B B Figure 7 6 lead motor full coil higher torque connections Connections to 8 lead Motors 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 A B B Figure 8 8 lead motor series connections Tel 086 0574 55008735 6 Web Site www nc tech cc Y M542 V1 0 Microstepping Driver Manual V1 0 2 FLFR 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 P2 Figure 9 8 lead motor parallel connections 6 Power Supply Selection The M542 V1 0 can match medium and small size stepping motors from NEMA frame size 17 to 34 made by Nachuan or other motor manufactures a
15. s shown in figure 2 Default setting is PUL DIR mode and rising edge active a PINI PIN2 short circuit PIN4 PINSshort circuit PUL DIR mode Tel 086 0574 55008735 3 Web Site www nc tech cc v oa BLE M542 V1 0 Microstepping Driver Manual V1 0 b PIN2 PIN3 short circuit CW CCW mode Figure 2 JP1 jumpers PINS PIN6 short circuit Connector P2 Configurations Details Pin Function 4 Control S ignal Connector P1 Interface The M542 V1 0 can accept differential and single ended inputs including open collector and PNP output The M542 V1 0 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 In the following figures connections to open collector and PNP signals are illustrated Driver vec O Figure 3 Connections to open collector signal common anode Tel 086 0574 55008735 4 Web Site www nc tech cc v M542 V1 0 Microstepping Driver Manual V1 0 AJIES Driver Figure 4 Connection to PNP signal common cathode 5 Connecting the Motor The M542 V1 0 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 de
16. tributor in your area Tel 086 0574 55008735 14 Web Site www nc tech cc v 2h PR Contact Us Web www nc tech cc Tel 86 574 55008735 E mail mculang 163 com MP 86 13515887668 Contact Person MR Wu Tel 086 0574 55008735 15 Web Site www nc tech cc
17. ystem 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 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 Tel 086 0574 55008735 12 Web Site www nc tech cc v oh BLES M542 V1 0 Microstepping Driver Manual V1 0 Problem Symptoms and Possible Causes Microstep resolution setting is wrong Something wrong with motor coil Inadequate heat sinking cooling anata ee eee A ESE a IE anne rer ene Ae fc ee i Emi if ith j yi E JLEC Current setting is too small Acceleration 1s set too high Current is set too high Tel 086 0574 55008735 13 Web Site www nc tech cc v E SE sae te a APPENDIX Twelve Month Limited Warranty Nachuan 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 Nachuan will either at its option repair or replace products which proved to be defective Exclusions The above warranty does not extend to
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