per revolution steps The drive to set the number of steps per motor revolution is 200 (whole step), 400 (2 segments), 1600 (8 segments), 3200 steps (16 segments). The user can drive the front panel DIP switch SW3 is SW4 bit of the drive to set the number of steps (such as Table 1 #xff09; #xff1a; Table 1 - Set the output phase current - To drive torque stepper motor, the user can drive panel DIP switch - SW1, SW2 is to set the drive output phase current (RMS) unit amperes, the switch position - Corresponding to the output current, output current value corresponding different types of drive. Concrete are shown in Table 2. - Output Current (A Table 2 Current setting - the semi-flow functionality - The semi-flow function is a step pulse 200ms, the driver output current is automatically reduced to the rated output current50%, used to prevent motor heating. Fourth, the power interface - 1, DC #43;, DC-: to connect the drive power - DC #43;: DC power level, power supply voltage DC 12 to 48V. The maximum current is 5A. The DC-: DC power supply negative level. 2, A #43; A-B #43; B-: to connect the two-phase hybrid stepping motor Drive and two-phase hybrid stepper motor's connection with the four-wire system, the motor windings in parallel and series connection, and connection method, high-speed performance, but the drive current is large (for motor winding current of 1.73 times), Connected in series when the drive current is equal to the motor winding current. Five, the installation - Around to have 20mm of space, can not be placed next to the other heating equipment, to avoid dust, oil mist, Corrosive gases, high humidity is too big and b vibration. #43; Figure 3. Six fault diagnosis 1, the status light indicates RUN: green light in the normal work. ERR: red light, power, light, power indicator