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1. savebase com Web hitp stores ebay co uk SAVEBASE 1 M542H Microstepping Driver Manual V1 0 ECG SAVEBASE 1 Introduction Features and Applications Introduction The MA860H 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 High performance cost effective Supply voltage up to 80V AC or 110V DC Output current up to 7 2A Self adjustment technology Pure sinusoidal current control technology Pulse input frequency up to 300 KHz TTL compatible and optically isolated input 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 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 noi2. Current table on the screen printing is used for the users of the MA860H to refer 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 I2 R of the original value If the application needs a different standstill current please contact NC Tech 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 PUL 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 Ifa power supply serves several drivers separately connecting the drivers is recommended instead of daisy chaining tis prohibited to pull and plug connector P2 while the driver is powered ON because there is high current flowing through motor
3. controller software errors or mistake in wiring Problem Symptoms and Possible Causes Microstep resolution setting is wrong Fault condition exists Motor phases may be connected in reverse P switch current se wrong 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 Email ebay savebase com Web http stores ebay co uk SAVEBASE 11
4. level set by inside jumper J1 amp J2 For reliable response pulse width should be longer than aa 1 5 H s Series connect resistors for current limiting when 12V or 24V used The same as DIR and ENA signals DIR DIR 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 J1 amp J2 this signal is counter clock CCW pulse For reliable motion response DIR signal should be ahead of PUL signal by 5 s 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 Enable signal This signal is used for enabling disabling the driver High level NPN control signal PNP and ENA Differential control signals are on the contrary namely Low level for enabling for enabling the driver and low level for disabling the driver Usually left UNCONNECTED ENABLED Email ebay savebase com Web hitp stores ebay co uk SAVEB ASE 3 M542H Microstepping Driver Manual V1 0 ECG SAVEBASE Selecting Control Signal Mode and Motor Decay Mode There are two jumpers J1 and J2 inside the MA860H specifically for selecting control signal mode as shown in figure 2 Default setting is PUL DIR mode There are two jumpers J1 and J2 inside the MA860H specifically for selecting motor decay m
5. 25W if VCC 12V R 2K Power gt 0 125W if VCC 24V R must be connected to control signal terminal Figure 4 Connection to PNP signal common cathode Email ebay savebase com Web hitp stores ebay co uk SAVEBASE 5 M542H Microstepping Driver Manual V1 0 ECG SAVEBASE 5 Connecting the Motor The MA860H 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 determine the peak output current Pe 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
6. 4 to determine the peak output current 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 _ NC B B Figure 7 6 lead motor full coil higher torque connections Email ebay savebase com Web hitp stores ebay co uk SAVEBASE 6 M542H Microstepping Driver Manual V1 0 ECG SAVEBASE 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 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 Mult
7. C or 24 85VDC 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 EN 11213 4 5161748 Standstill Current half full Microstep Resolution Selection Microstep resolution is set by SW5 6 7 8 of the DIP switch as shown in the following table 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 Email ebay savebase com Web hitp stores ebay co uk SAVEBASE 8 M542H Microstepping Driver Manual V1 0 ECG SAVEBASE Dynamic current setting Notes Ref
8. User s Manual MA860H High Performance Microstepping Driver Version 1 0 2011 All Rights Reserved Attention Please read this manual carefully before using the driver Easy Commercial Global Technology Co LTD Savebase M542H Microstepping Driver Manual V1 0 ECG SAVEBASE ECG Safety Statement Easy Commercial Global is not liable or responsible for any accidents injuries equipment damage property damage loss of money or loss of time resulting from improper use of electrical or mechanical or software products sold on this website or other Easy Commercial Global sales resources Since Easy Commercial Global basically provide OEM machine builders components to build their machines for their own use or third party use it is their responsibility to maintain certify and comply the end user products built base on our components sold on this website or other Easy Commercial Global sales resources Assembling electrical CNC machine component like power supplies motors drivers or other electrical components involve dealing with high voltage like AC alternative current or DC direct current which is extremely dangerous and need high attention amp essential experience and knowledge of software electricity electro mechanics amp or mechanics For technical questions please contact us at ebay savebase com before purchase 2011 Easy Commercial Global Technology Corporation Limited All Rights Reserved Email ebay
9. 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 Email ebay savebase com Web hitp stores ebay co uk SAVEBASE 9 M542H Microstepping Driver Manual V1 0 9 Typical Connection ECG SAVEBASE 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 CCe PUL t Lee ee PIE Sepping Motor 16 BOW 24 RIVO Reo if WOtlesdV R TKiPower D 12500 if OCT 2 R 2K Powers 125 if Woo 24 R musi be connected to control signal terminal Figure 10 Typical connection 10 Sequence Chart of Control Signals MAS60H Driver In order to avoid some fault operations and deviations PUL DIR and ENA should abide by some rules shown as following diagram T 7 OMS tye i High Level gt 3 54 PUL I I I i i PUL CW i i i P High Lervel 3 DW a T i Low Levels ov DIR ein t 73s n Low Level lt 0 5V I I ENA PUL DIR Figure 11 Sequence chart of control signals Remark a T1 ENA must be ahead of DIR by at least Sus Usually ENA and ENA are NC not connected See Configurations for more information b T2 DIR must be ahead of PUL effective edge by 5us to ensure correct direction c T3 Pulse width not less than 1 5u
10. iply per phase or unipolar current rating by 1 96 or the bipolar current rating by 1 4 to determine the peak output current P2 A e B B Figure 9 8 lead motor parallel connections 6 Power Supply Selection The MA860H can match Large and small size stepping motors from Nema size 17 to 43 made by NC Tech 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 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 typicall
11. ode as shown in figure 2 Default setting is AUTO DECAY mode Figure 2 J1 J2 J3 and J4 jumpers Connector P2 Configurations Power supply 18 80 VAC or 24 110 VDC Including voltage fluctuation and EMF voltage Recommended 18 60VAC or 24 85VDC Motor Phase A Motor Phase B Email ebay savebase com Web hitp stores ebay co uk SAVEBASE 4 M542H Microstepping Driver Manual V1 0 ECG SAVEBASE 4 Control Signal Connector P1 Interface The MA860H can accept differential and single ended inputs including open collector and PNP output The MA860H 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 Controller i Driver vec l PUL 270Q z J 2 T DIR 27 i gt DIR R DIR a e of ENA ENA R ENA R 0 if VCC 5V Lee 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 Controller Driver vcc Q i PUL R R 0 if VCC 5Y saps at ie oar oa R 1K Power gt 0 1
12. s d T4 Low level width not less than 1 5us Email ebay savebase com CW CCW Connector P1 Web hitp stores ebay co uk SAVEBASE 10 M542H Microstepping Driver Manual V1 0 ECG SAVEBASE 11 Protection Functions To improve reliability the driver incorporates some built in protections features Short voltage and Over voltage protection When power supply voltage exceeds 123 VAC or 173VDC over voltage protection will be activated and Alarm indicator LED will turn on Over current Protection Protection will be activated when continuous current exceeds the limit 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 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 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 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
13. se low heating and high speed performance 2 Specifications Electrical Specifications Tj 25 C 77T E S TIT ae a ee as Email ebay savebase com Web hitp stores ebay co uk SAVEBASE 2 M542H Microstepping Driver Manual V1 0 ECG SAVEBASE Mechanical Specifications unit mm Figure 1 Mechanical specifications Recommend use side mounting for better heat dissipation Elimination of Heat Driver s reliable working temperature should be lt 70 C 158 F and motor working temperature should be lt 80 C 176 F tis recommended to use automatic idle current mode namely current automatically reduce to 60 when motor stops so as to reduce driver heating and motor heating tis recommended to mount the driver vertically to maximize heat sink area Use forced cooling method to cool the system if necessary 3 Pin Assignment and Description The MA860H 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 PUL Pulse signal In single pulse pulse direction mode this input represents pulse signal 4 5V when PUL HIGH aan 0 0 5V when PUL LOW In double pulse mode pulse pulse this input represents clockwise CW pulse active PUL at high level or low
14. y 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 Email ebay savebase com Web hitp stores ebay co uk SAVEBASE M542H Microstepping Driver Manual V1 0 ECG SAVEBASE 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 MA860H can actually operate within 18 80VAC or 24 1 1OVDC 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 18 60VA
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