A3977 Step Motor 3-Axis Driver Board 2.5A with Radiator for CNC Mach2 3 EMC KCAM DIY

A3977 Step Motor 3-Axis Driver Board 2.5A with Radiator for CNC Mach2 3 EMC KCAM DIY

Description:
- Main supply voltage DC 12V-32V (recommended 24V/10A ) to the stepper drive.
- For Mach2/ 3 /EMC/KCAM etc.
- Output standard three axis drive, and there are fourth axis extension and emergency stop port, convenient user free extension of the fourth axis.
- Control part and driving part of the high-speed optocoupler isolation. To prevent mutual interference on the parallel connection of the host computer, most console leakage will greatly interfere signal, after the isolation is not.
- The driver board uses a large number of 74hc series chip to parallel signal amplifying and shaping, so as to raise the output level stable performance, avoid stepping on the occurrence of lost steps and response.
- Stepper motor drive uses A3977, the internal DMOS dual H bridge, (field effect tube), hair heat
- Rated maximum output: + -2.5A, 35V, low output impedance, source 0.45Ohm, receiving end 0.36Ohm, low voltage shutdown, thermal shutdown circuit and circulation protection.
- For 42, 57 stepper motor, and the stepper motor less than 2.5A , is not suitable for more than 2.5A of the stepper motor.
- Automatic half flow attenuation.

Main features of integrated circuits:
- Rated output is: + 2.5A, 35V.
- Low output impedance, source 0.45, receiver 0.36.
- Automatic current attenuation detection and selection of mixed, fast and slow current decay mode.
- Logic level range is from 3-5.5V.
- HOME output.
- Reducing the power consumption of synchronous rectification function.
- Internal low voltage shutdown, thermal shutdown circuit and circulation protection.
- Heat is low, the motor is stable and quiet, and the vibration is small.

Package included:
- 1 x Driver Board