3 phase stepper motor driver SH30822M

Based on the original stepping motor driver, we developed the 30822M type stepping motor driver. This driver owns many advantages such as low noise, high  efficiency, Lower temperature rise, convenient settings, nice running characteristic and so on.

wiring  diagrams of motors:
There are two connecting modes of the motor.
1.  delta-connection
2.  Y-connection

Warning:Motor's  wires mustn't be connected wrongly, Otherwise, the driver will be mangled.

Input  signals
The inner interface circuits of the SH30822M are segregated by optically coupled isolators.
There are three connecting mode between the controller and the driver.
i. Differential                                   ii. Common-anode

DIR: Input port of the direction  signal. High/low level controls the CW/CCW of motor. The changing edge of the  signal must be at least 2.5us later or earlier than the falling edge of CP;  
 FREE: Free signal (active low). when  this input end is low level,there will be no holding torque of the  motor.
 CP: Pulse  signal input. active by the falling edge,the highest response frequency can be  200kHz,low level pulse width should be not less than 2.5us.
 RDY: A contact of the inner relay,  just like a switch. It is ON when the driver is normal when the power turned  on. It is OFF if the driver is abnormal.
 G: Input signal must have enough  current, (Currently, TTL, COMS signal are not drive firsthand). Otherwise,  System can not run normally.

Current and subdivision number setting:
 Switch is adopted to set phase current and  subdivision number in SH30822M driver. There-into, Switch 5 is half  phase-current (ON means full current, OFF means half), switch 6 is the setting  of single or double pulse (ON show single pulse CP, DIR; OFF show double pulse  CW, CCW). See Table2,Table3.After the subdivision of driver is set, the  step angle in motor is equal to whole step angle divided by subdivision number. For example:if subdivision number is set to 18,its subdivision step angle is  1.8°/18=0.1°.