µStepper™ : CNC Stepper Motor Driver Board Microstepping 1/2
Contents
1. ors with 4 6 or 8 wires 6 WIRE CONNECTION 4 WIRE CONNECTION CENTRE WIRES NOT CONNECTED 8 WIRE PARALLEL CONNECTION Copyright O 2009 2010 Starting Point Systems Page 4 R y 222. uStepper M User Manual uStepper M CNC Stepper Motor Driver Board Microstepping 1 2 step 1 4 step 1 8 step 2 5 Amps 35 Volts Bipolar PWM Current Chopper Copyright 2009 2010 Starting Point Systems Page Rev 2 2 uStepper M User Manual The advantage compared to other boards simplicity of use e Just one power supply to provide the board makes it own 5V locally e Motor current setting follows the I Amp for I Volt rule say you want 800mA gt set the potentiometer voltage to 0 8V and that s it up to 2 5A e Compatible with all popular PC software Mach3 TurboCNC or microcontrollers e Compatible with all motor types 4 wires 6 wires 8 wires e Compact size 1 8 x 2 5 45mm x 64mm and 1 8 3 2mm mounting holes But the performance level is on par with most expensive boards out there This board uses the highest performance stepper motor driving mode the current chopper switching PWM regulator This provides the highest speed possible from your motor and makes it possible to power for example a SV motor with a 24V power supply It is not mandatory to use a well regulated power supply The voltage range supported makes it possible to use a variety of power supply types for example the 12V from a PC supply the 19V 24V from a laptop supply or even batteries or accumulators The Step Dir drive signals the widest found mode makes it compatible with the most popular softwares like Mach3 T
3. urboCNC and the step frequency can go up to 500kHz Technical Specs e 2 5 Amps 35 Volts Supply voltages 9 to 35 Volts e Linear 5V regulator on board only one supply voltage to bring to the board e PWM current chopper regulator does not depend on an accurate supply voltage e Very easy to setup motor current 1V gt 1A for example if you want 800mA in your motor coils gt set the potentiometer voltage to 0 8V with a multimeter and you re done e Step Dir drive mode with 3 a 5 Volts signals PC port or uController e Full Step 1 1 Half Step 1 2 Quarter Step 1 4 Eighth Step 1 8 selection with dipswitches e Easy wiring with standard screw terminals e Power on indication led e Step frequency up to 500kHz e Fuse protection on power supply rail protects the board but also your power supply and motor e Large heatsink no need for a fan in most applications e Thermal shutdown protection Copyright 2009 2010 Starting Point Systems Page 2 Rev 2 2 uStepper M User Manual Cabling diagram OUT1A OUT1B OUT2B OUT2A wicrostep FUSE 3A Motor Current v E U n SL Wa O O O E WC Sa WI Wa Wu Q Q N CN U Vv E O 4 Sa Sk O GND VMOT GND STEP Copyright 2009 2010 Starting Point Systems Page 3 Rev 2 2 uStepper M User Manual Microstepping switches settinos full step 1 2 half step 1 4 quarter step 1 8 eighth step Connecting mot
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