Feature: The drive current is continuously adjustable from 0.21A to 1.5A, 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 100Kpps. The drive has multiple protection functions such as: overcurrent, overvoltage, undervoltage, short circuit protection. The motor driver is suitable for the outer diameter of 20 ~ 42mm series stepper motor(Nema8/11/14/17). 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. Increased high-speed response and smoothness with a unique control circuit Specification: Model: FYQM315A Voltage: DC 18-36 V Drive current: 0.21-1.5A/phase 7 level adjustable Subdivision: the highest resolution 25600 steps / rev 8 level adjustable Maximum pulse frequency: 100 Kpps Product installation size: Package list: 1 * Motor driver Note: 1. Do not reverse the power supply. Do not exceed the input voltage of DC36V. 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. The code switches SW1 ~ SW6 need to be powered on again to take effect. 1、The drive current is continuously adjustable from 0.21A to 1.5A, and the usability is strong. 2、When the pulse stops for more than 100ms, the coil current is automatically halved, and the highest pulse frequency can reach 100Kpps. 3、The drive has multiple protection functions such as: overcurrent, overvoltage, undervoltage, short circuit protection. 4、The motor driver is suitable for the outer diameter of 20 ~ 42mm series stepper motor(Nema8/11/14/17?). 5、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 assemb