1. Please ensure positive and negative connection before power transmission
2, please do not plug the motor and drive under the condition of energizing. It is easy to cause the drive to burn out, and do not adjust the current in the running process of the motor. The right way is to cut off the power, pull out the motor, reset the electricity, adjust the potentiometer, and measure the voltage on the potentiometer, knowing that the measured voltage is the same as expected. Do not plug in the anti drive, otherwise it will burn the driver, or even burn the motherboard!
1. power input can only be 12V
2. hot bed can not exceed 120W
3. touchscreen can only use tft28, and tft28 screen should be separately connected with 12V power supply.