1、H-bridge bipolar constant-phase flow subdivision drive control circuit, high reliability 2、When the pulse stops for more than 100ms, the coil current is automatically halved, and the highest pulse frequency can reach 200Kpps. 3、The drive has multiple protection functions such as: overcurrent, overvoltage, undervoltage, short circuit protection. 4、The drive current is continuously adjustable from 2.5A to 6.0A, and the usability is strong. 5、The motor driver is suitable for the outer diameter of 56 ~ 110mm series stepper motor. Feature: H-bridge bipolar constant-phase flow subdivision drive control circuit, high reliability The drive current is continuously adjustable from 2.5A to 6.0A, and the usability is strong. When the pulse stops for more than 100ms, the coil current is automatically halved, and the highest pulse frequency can reach 200Kpps. The drive has multiple protection functions such as: overcurrent, overvoltage, undervoltage, short circuit protection. The motor driver is suitable for the outer diameter of 56 ~ 110mm series stepper motor. Suitable for a variety of automation equipment and instruments in the field of motion control, such as: electronic equipment, semiconductor equipment, laser cutting and welding, packaging machinery, engraving machines, CNC machine tools, automated assembly equipment. Specification: Model: FYQM806A Voltage: DC 36~80V, AC 24~70 V Drive current: 2.5~6.0A/phase 8 adjustable Subdivision: the highest resolution 12800 steps / rev 6 level adjustable Maximum pulse frequency: 200 Kpps Dimension: Package list: 1 * Motor driver Note: 1. Do not reverse the power supply. Do not exceed the input voltage of DC40V. The green indicator light PWR lights when the drive is powered. 2. The input control signal voltage is 5V. When it is higher than 5V, the current limiting resistor needs to be connected. When the control signal voltage is 24V, a 2.2K 1/4W resistor should be connected in series. 3. The drive fault indicator is on. Please check the motor wiring and control signal line. If the motor is connected and other short-circuit faults, it needs to be restored after power-on. 4. SW4 to set the lock current function: ON=Full Current, OFF=Half Current. When SW4 is set to OFF at the factory, the heat generation of the motor and the driver is reduced, and the reliability is improved. The current is automatically reduced by 50% at approximately 100 ms after the pulse train is stopped. 5. The driver has a single and double pulse selection function, which can be selected by SW5, OFF = pulse + direction, ON = double pulse. The code switches SW1 ~ SW8 need to be powered on again to take effect.