User`s Manual - BHOLANATH Stepper Motors
Contents
1. 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 Page 8 Website www bholanath in E mail id support bholanath in 1 Bipolar parallel conmection Att Yellow 8 lead motor parallel connections 5 Power Supply Selection The Microstep Driver can match small size stepping motors for Nema size 17 To achieve good driving performances it is important to select supply voltage and output current properly 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 On the other hand if unregulated supply is used one may use a power supply of lower current ra2. COIL CONNECTION Page 7 A como PLUS IM Black A C gt CONNECT A A Com amp B B Com White Red BCom Blue B gt A Com A amp B Com B 6 lead motor half coil higher speed connections Full Coil Configurations Lower speed is desired This configuration is also referred to as full chopper In full coil mode the motors should be run at only 70 of their rated current to prevent overheating Green a eee FOR FULL COIL CONNECTION A como w gt IM a OTESS pal CONNECT A A amp B B gl E b LEAVE A Com amp B Com 6 lead motor full coil higher torque connections NOTE THE ABOVE CONFIGURATIONS IS FOR CONNECTING IN A BIPOLAR MICROSTEP DRIVE AS PER APPLICATION NON AVAILABILITY OF A UNIPOLAR MICROSTEP DRIVE 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 overheating 1 Bipolar series connection Ar oP Yellow A O Black 8 lead motor series connections
3. CIRCUIT CONNECTION A NOTE PULSE AND DIRECTION NEED 5VDC SIGNAL N PULSE gt E UP ZP DR fl Yo P hi Li Yi Lo N a ve PLC al Y3 Y4 Y5 VOLTAGE V gt DC 12 36 Wy y L SMPS N SUPPLY 230VAC 50HZ OV Pp 24 TM BHOLANATH PRECISION ENGINEERING PVT LTD cousarermproverceron 11 KEMBROS IND ESTATE SONAPUR LANE BHANDUP W MUMBAI 400078 _ NAME DATE ME MICRO STEP BIPOLAR DRIVE CIRCUIT CONNECTION DNA NS w f fa poe Tras APD SHEET No 1 OF 1 DRG No 1 Rewo _ This copy belong to Bholanath precision engg pvt Itd and is strictly confidental Do not circulate this copy without Bholanath s authorization 9 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 con
4. User s Manual For BH MSD 2A Micro Stepping Driver Attention Please read this manual carefully before using the dnver BH MSD 2A f CURRENT 0 25 2A Power y Microstep Driver PUL a DIR dun VCC EN QUALITY PASS NC Sw7 Sw6 Sw5 Sw4 Sw3 Sw2 Swl ene GND TS s 25 orF oer om 50 on ore ar ON ON OFF 2 00 ON ON ON SW4 ON FULL Current FF Half Current VDC 12V 36V TM Bholanath COMMITTED TO PRECISION C Version 1 01 BHOLANATH PRECISION ENGINEERING PVT LTD Website www bholanath in E mail id support bholanath in page 12 Product Number Code For Micro step drive BH MSD 2A 2 Amp MICRO STEP DRIVE BHOLANATH 1 DC power input 12V 36VDC 2 Output current 0 25A 2A 3 Microstepping 1 2 4 8 16 32 64 128 4 Protect From Overvoltage under voltage over current phase short circuit 5 Dimension 96mmx60mmx24 5mm 6 Weight 180g 7 Working environment Temperature 15 80 C Website www bholanath in E mail id support bholanath in Table of Contents 1 Introduction Features and Applications ccccecececeececececeeeecececeseseeescneeeeees 4 MEPOCUCHON aio satae etree eas 4 3 FG AN td EE EEA S E e A E AE EAE 4 age ge Applicaton Sien N 4 De CHIC ALOIS tie 4 Elecctrical SpeclicatONS dal 4 Model o BH MSDZA id 4 DAVE PTE VEN is 4 Operate Environment sia did 4 Elf NA o os 5 Pin ASSIonMent and Descrip sat a ai dd de cos os LAOS 5 Connecto
5. everse Reverse the phases line Wrong I p direction signal Change direction setting direction Motor line break Change the phases are connected The Micro steps set incorrectly Set the correct segments The motor load is too heavy Increasing the current the wrong Inaccurate Position Control signal is interfered Eliminate interference Power supply voltage too low Increasing the supply voltage Accelerating time is too short Extend the acceleration time Motor Stalled Current setting 1s too small Increasing the current Motor torque is too small Replace the motor Page 10 Website www bholanath in E mail id support bholanath in Wrong connection for power Check wiring of power LED off turn Low voltages for power Enlarge voltage of power Motor doesn t run motor without holding torque RESET signal is effective Ineffective Motor doesn t run but Without input pulse signal Adjust PMW amp signal level maintains holding torque Too small relative to current Correct rated current setting setting Motor s holding torque is Acceleration is too fast Reduce the acceleration too small Motor stalls Rule out mechanical failure Driver does not match with Change a suitable driver The motor 7 Dimensions BHOLANATH PRECISION ENGINEERING PVT LTD Page 11 Website www bholanath in E mail id support bholanath in 8 Circuit connections Sum BHOLANATH MICRO STEP BIPOLAR DRIVE
6. he drivers is recommended instead of daisy chaining gt Itis 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 EMEF voltage surge which may damage the driver Switch Choice 1 Microstepping choice sw 5 Miro 1 2 4 8 2 6 18 2 Current choice SW 1 SW 2 sw A 4 Connecting the Motor Connections to 4 lead Motors 4 lead motors are the least flexible but easiest to wire Speed and torque will depend on winding inductance Red B B 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 Website www bholanath in E mail id support bholanath in 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 Green a O y PA FOR HALF
7. he system if necessary 3 Pin Assignment and Description The driver has two connectors namely Pl amp P2 Connector P1 for control signals connection Connector P2 for power and motor connections The following tables are brief descriptions of the two connectors Connector P1 Configurations PULSE SIGNAL NEGATIVE DIRECTION SIGNAL NEGATIVE Connector P2 Configurations EXTERNAL CURRENT LIMITING RESISTANCE Signal current in both the ports can t be too big and not too weak It is necessary to connect current limiting resistor in external refer to following table VOLTAGE LIMITING RESISTANCER R EA ORO RS R IKQ R 2 2 KQ NOTE FULL CURRENT AND HALF CURRENT CHOICE PORT SW 4 FULL CURRENT IF THE DRIVER IS IN FULL CURRENT MODE THIS WILL LEAD TO MOTOR HEAT AND IT WILL ALSO DAMAGE THE DRIVER HALF CURRENT THE DRIVER SHOULD ALWAYS BE IN HALF CURRENT MODE AS THIS WILL REDUCE THE HEAT OF MOTOR AND DRIVER Website www bholanath in E mail id support bholanath in Wiring Notes gt 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 Page 6 motor position error system instability and other failures gt If a power supply serves several drivers separately connecting t
8. or 2 phase and 4 phase motors gt Support PUL DIR and CW CCW modes gt Short voltage over voltage over current and short circuit protection gt Low temperature rise smooth motion Applications Suitable for a wide range of stepping motors for NEMA size 17 It can be used in various kinds of machines such as X Y tables And a variety of automation equipments and instruments It always performs well when applied for equipment which requires for low vibration low noise high precision and high velocity 2 Specifications Electrical Specifications Model No BH MSD 2A Min Typical Max Hvowgoo on we Voltage DC 12 36 Voltage AC Output current Operating Environment Natural cooling or Forced cooling Operating Environment Environment Avoid dust oil fog corrosive gases Temperature 15 C 80 C Humidity Not Condensation No Water Droplets Operating Temperature 10 C 45 C Storage Temperature 20 C 65 C Website www bholanath in E mail id support bholanath in Elimination of Heat gt Driver s reliable working temperature should be lt 70 C and motor working temperature should be lt 80 C gt It is 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 Page 5 gt It is recommended to mount the driver vertically to maximize heat sink area Use forced cooling method to cool t
9. r Pl Conte tratos aia ii 5 Connector P2 Contistrations sa 5 External Limitino Resistant Ossis E EiS 5 Full current And Half CUIT Oi 5 ANIE NOIES eaa a o bas 6 SWING 6 4 Connec the Motta ia 6 Connections to 4 lead Mot siii 6 Connectonsito 0 16 ad MOS erario ele Serer ee cote eae 6 Hale Ol Contour don Serpe 7 Pull Corl COn Ur cece areas ee aeneureeea cee 7 Connections 10 8 lead MotorSpain cid 7 A A A 7 Parallel Connie cons dial 7 de POWELL Supply SClCCHON tt dsd 8 R sulated or Unresulated Power Supply cita 8 A A eres iec teu alee ale he eat alee telat taal ee de eae 8 A E dic tavea tatu A ie dariece taste 8 DIMENSIONS os dad 10 S Creu CONNEC ONS a neRaS 11 9 Prequcntly Asked estonio is 11 IO Contacts des 12 Website www bholanath in E mail id support bholanath in 1 Introduction Features and Applications Introduction Micro stepping driver is particularly suitable for the applications desired with extremely low noise and low temperature rise technology which significantly improve the performance of the stepper Page 4 motor that leads to low temperature rise low vibration With the adjustment technology step rev and current according to different motors the driven motors automatically generate optimal parameters for different motors and achieve the best performance at higher speed It is suitable for driving 2 phase and 4 phase hybrid stepping motors Features gt High performance cost effective gt Suitable f
10. ting than that of motor typically 5 0 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 but not during the OFF duration Therefore the average current withdrawn from power supply is considerably less than motor current 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 6 Troubleshooting 1 The status on light s indication POWER normal work light NOTE TO CHECK IF DRIVE IS OK NOT OK CONNECT ONLY SUPPLY DC VOLTAGE AND GROUND TO THE MICROSTEP DRIVE AND CHECK THE LED INDICATOR IF IT GLOWS THEN DRIVE IS OK IF NOT THEN DRIVE IS NOT OK Website www bholanath in E mail id support bholanath in 2 Troubles No power supply Check the power supply Page 9 Motor is not No control signal Check the control signal rotating Don t connected the enable signal The driver is disabled or enable the driver Supply voltage is too high or Check the supply voltage too low Check motor lines eliminate the ALM lights Motor line short circuit short circuit Motor line wrong connect Check the motor wiring Motor or drive failure Replace the motor or drive Motor rotates in Motor phases connected in r
11. troller software errors or mistake in wiring The content in this manual has been carefully prepared and is believed to be accurate but no responsibility is assumed for inaccuracies BHOLANATH PRECISION ENGINEERING PVT LTD Website www bholanath in E mail id support bholanath in We manufacture 1 8 HYBRID STEPPER MOTORS of size NEMA17 NEMA23 NEMA24 and NEMA34 in square frame and Nema 23 in Round frame and available in our product range are Linear Actuator Page 12 Stepper Motors Planetary Geared Stepper Motors Stepper motors with Brakes and Customized Stepper Motors Office Address Contact Us Bholanath Precision Engineering Pvt Ltd 11 Kembros Industrial Estate Near Asian Paint Company sonapur Lane Bhandup West Mumbai 40008 Indra Phone No 91 9970903625 9930514603 9821671733 9323166562 91 22 25664338 25662856 67993260 BHOLANATH PRECISION ENGINEERING PVT LTD
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