ST330 Stepper Motor Driver Board User Manual
Contents
1. ST330 Stepper Motor Driver Board ST330 Stepper Motor Driver Board User Manual ST330 Stepper Motor Driver Board I Introduction 1 Overview The ST330 is a compact single axis bipolar 3 0A phase stepper motor microstepping driver with step and direction inputs DIP switch settable step mode full half eight and sixteenth S3 S4 torque 100 75 50 20 S5 S6 work Current 0 3A SW1 SW2 SW3 and decay mode 0 25 50 and 100 2 Technical Specs Single chip motor driver for sinusoidal microstep control of stepping motors Power on in indication led 3Amps 34Volts Supply voltages 12 34DC Full step half step eight step and sixteenth step selection with dipswitches torque 100 75 50 20 work Current 0 3A selection with SW1 SW2 SW3 4 Wire 6 Wire 8 Wire stepper motors can be used Two phases bipolar driver Easy wiring with standard screw terminals Step frequency up to 100khz fuse protection on power supply rail protects the board but also your power supply and motor 3 Application domain Suitable for all kinds of small and medium sized automation equipment and apparatus For example laser machines laser engraving amp cutting machine laser subsurface engraving machine laser handicraft cutting machine nonmetal materials laser marking machine laser seals engraving machine and photosensitive seal machine ST330 Stepper Motor Driver Board Il Electr2. GER 624 Hi hl JR d DER ES 2 Input voltage and output current selection 1 Supply voltage setting In general the higher the supply voltage the greater the motor torque at high speed High speed ST330 Stepper Motor Driver Board to avoid losing steps On the other hand the voltage is too high will lead to over voltage protection motor heat more and may even damage the drive When working at high voltage low speed movement of the vibration will be larger 2 Output current setting For the same motor the current setting value the greater the motor output torque but the current is large motors and drives are also more serious heat The size of the specific heat value not only with the current setting but also with the exercise type and duration The following is configured using the stepper motor rated current value as a reference but the practical application of best value should be adjusted on this basis In principle such as low temperature lt 40 C is appropriate to increase the current settings as needed to increase the value of the motor output power torque and speed response four and six wire motor speed mode The output current is set equal to or slightly less than the motor rated current value six lane high torque motor mode the output current is set to motor rated current 70 cight wire electrical series connection As the series resistance increases when the output current should be set to motor rat
3. coupler conduction the drive will cut off the electrical current of each phase of the motor in a free state then pulse is not responding When not required for this function the enable signal terminal can be left vacant As STEP DIR EN common anode port Strong signal interfaces Ban hot plug GND Supply voltages 12 30DC A phases B phases Status Indication ST330 Stepper Motor Driver Board Red LED indicator for power when the drive is switched on the LED lit when the driver cut off the power the LED turns off Green LED indicator for drive operation vvhen the drive receives an external pulse signal the LED is lit external pulse signal vvhen the interrupt latency 200ms change the LED is off 2 Control signal interface circuit MD430 drive differential signal applied single end total of yin and yang interface built in high speed optocoupler allows you to receive long term drivers and PNP open collector output circuit of the signal The figure is the drive wiring diagram WPS R STEP AAAS R DIR W WD ER Ls MEINE dn T zg O T90 3 Control timing diagram In order to avoid malfunction and error STEP DIR and EN should meet certain requirements as show below ST330 Stepper Motor Driver Board agyar svt T A IEEE FO sv DIR EN Note 1 tl EN enable signal should be ahead of DIR at least 5 Us identified as high Un
4. der normal circumstances suggest vacant 2 t2 DIR advance STEP falling 5 u s high or low to determine its status 3 t3 Pulse width of not less than 2 5 u s 4 t4 Low level width not less than 2 5 ls 4 Wiring Requirements 1 Prevent interference Recommend the use of shielded cable 2 Control signal line and motor line not together at least 10cm above to avoid system instability 3 If a power supply for more than one drive should be connected in parallel at the power supply to not allow a first one and then another chain connection 4 Plug or unplug drive strong electric P2 terminals the motor is stopped there are still charged high current flows through the coil plug the P2 terminal will lead to great moments induced electromotive force will burn drive 5 After the wire plus tin prohibited access terminals may damage the terminal 6 Connection thread can not be exposed outside the terminal to prevent accidental short circuit and damage the drive ST330 Stepper Motor Driver Board IV DIP switch current segments decay MD430 drive using six DIP switch segments accuracy decay mode semi static flow dynamic current three toggle settings 1 Current Settings 1 Work Dynamic Current setting Default 0 0 0 1 0A 0 0 1 0 5A 0 1 0 1 5A 0 1 1 1 5A 1 0 0 2 5A 1 0 1 2 0A 1 1 0 3 0A 1 1 1 2 Static current setting S5 S6 set Static current the DIP swi
5. ed current 70 Motor and eight wire connection output current can be set to 1 4 times the rated motor current ST330 Stepper Motor Driver Board VII Typical wiring Case Drive a typical wiring connection interface board 3247 MACH3 g PC eo 666666 Sincere
6. ical mechanical and environmental Specifications 1 electrical Specifications 2 Use of the environment and parameters Natural cooling or forced air cooling Away from heating equipment combustible gases and Occasions conductive dust avoid dust oil mist corrosive gas place too much humidity and strong vibration Temperature 0 50 C Humidity 40 90 RH Vibration 5 9m s2MAX 20 C 80 C 110g ST330 Stepper Motor Driver Board 3 Install the machinery unit mm NBR 1 EREILI AEREE E O am Ho 2 ELASLAMARZZL 3 HEILAM QL IRAR ST330 Stepper Motor Driver Board Ill Connection to step motor 1 2 3 1 Port Description Control signal interface Pulse control signal rising edge and effective STEP HIGH 4 5V low 0 0 5V For reliable response to the pulse signal pulse width should be greater than 5us If a 12 V or 24 V series resistance is required Direction signal high low signal in order to ensure reliable commutation motor the direction of the signal pulse should be at least 5us established The initial direction of the motor to run the wiring for the motor swap any one phase winding such as A A exchange can change the motor direction of the initial run DIR high 4 5V 0 0 5V low Enable signal This input signal is used to enable or disable EN low level or internal
7. tch on the left there is a status indicator 0 gt 1 through S5 S6 to set the static current and operating current To S5 S6 0 1 for example pulse train stopped about 0 4 seconds automatically reduced to about half of the current actual value 60 heat reduced to 36 in theory coma s TT ST330 Stepper Motor Driver Board 20 1 50 0 75 1 100 0 When the S5 S6 is 1 1 the static current is 20 of current value Generally the Static current is set to minimum to reduce motor and drive heat 2 Segments Settings 1 0 S3 0 S4 0 drive segments a i number is 1 1 8 step angle motor turning circle the whole step 200 8 1 steps rev S3 0 S4 1 1 8 i i step angle motor turning circle the whole step 3200 steps rev 3 Decay Mode 0 0 Different electrical impedance 25 1 matching of different decay modes to eliminate the noise when the stepper 50 0 motor lock motor movement in the me shake ST330 Stepper Motor Driver Board V Power supply selection Power supply voltage DC12V 34V can work MD430 drive the best use of non regulated DC power supply can also be used step down transformer bridge capacitive filter rectifier capacitor desirable 6800uF or 10000uF However note should be rectified peak voltage ripple does not exceed 34V Recommend the use of 12V 34V DC power supply to a
8. void power fluctuations over drive voltage range If you use a regulated switching power supply switching power supply should be noted that the output current range to be set to maximum Note 1 The wiring should pay attention not to reverse the positive and negative 2 The best type of non regulated power supply 3 use of non regulated power supply the supply current output drive capability should be greater than 60 of current can be set 4 the use of regulated switching power supply power supply output current should be greater than or equal to the drive current 5 If electrical power is large enough two drivers can share a power supply ST330 Stepper Motor Driver Board VI Matching the motor Motor 4 6 8 line two phase four phase hybrid stepping motor step angle of 1 8 degrees and 0 9 degrees can be applied Selected mainly based on the motor when the motor torque and current rating decision Torque motor size determined primarily by size Large size of the motor torque is relatively large the current size of the primary and the inductance high speed performance of small induction motors but a larger current 1 Electrical wiring For the 6 8 line stepper motor connected in different coils of the motor performance quite different as shown below P2 P2 P2 At At At A A A B B B B B B 42k BL SEK BLIP TT Bak SE HL TE ET EST RE JJ EK P2 P2 A N A i NC m NPA B c B NC
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