Bipolar stepper drive board described here has been designed around TB6600HG IC. The TB6600HG is PWM chopper type single chip bipolar sinusoidal micro-step stepping driver. Maximum Load 4.5A, Supply 10V to 42V DC.
- Based on Single chip and Second chip for auto half current control
- Suitable for Nema17, Nema23, Nema34 bipolar stepper motors
- Suitable for 4Wires, 6 wires and 8 wires stepper motor.
- Forward and reverse rotations available
- Selectable Phase (Micro-step) drives 1/1, 1/2, 1/4, 1/8, and 1/16
- Maximum Input supply 42V DC Minimum Input supply 10V DC
- Output current 4.5Amps
- Output Fault Monitor LED indicator
- On Board Power LED indicator
- On Board step pulse input indicator
- Standby auto half current reduction circuitry onboard
- Built in Thermal shutdown (IC)
- Built in under voltage lock out (UVLO) circuit (IC)
- Built in over current detection (ISD) circuit (IC)
- Large capacitor to handle inrush current
- Large format Size Printers
- 3D Printers
- Machine Automations
- Camera Pan Tilt Heads
- Slot Machine
- Vending Machine
Heat-sink and Thermal Shutdown
The board has current sense resistors and these resistors has been set as per maximum load current 4.5A, If you use lower current motor, please set the PR1-Preset ( Potentiometer) to the required level for the motor. At maximum current load TB6600 IC will overheat in some time and a RED LED turns on. This LED goes off once the temperature falls to a safe operating level.
A 4way DIP switch is used to set the micro step modes (Full, Half, Eight, Sixteenth), please see the table for Micro step settings. DIP Switch settings should be changed when power is off so the correct selection is active at power up.
Minimum positive duty cycle of the input step pulse should be 2.2us and required 5V (TTL) signal. A positive going pulse on the step input activates a step operation.
Average drive current can be set using a Preset (On Board PR1 Potentiometer). CN7 (CT) onboard connector is provided to measure the voltage to set the motor current (torque). Voltage range to set the torque 0.3V to 3.5V