power supply:Single external power supply：AC 20-60V 3A or DC 20-70V 3A.

Warning：The value of the power supply shouldn’t be over this range.

For two-phase four-wire motor：

For four-phase six-wire motor:

For four-phase eight-wire motor, there are two modes
i.shunt-wound

ii.series-wound

Warning：Motor’s wires mustn’t be connected wrongly, Otherwise, the driver will be mangled.
Input signals
The inner interface circuit of the SH2046D are segregated by optically coupled isolators.
There are three connecting mode between the controller and the driver.
i. Differential

ii.Common-cathode

iii.Common-anode

DIR：Input port of the direction signal. High/low level control 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。
Warning：Input signal must have enough current, (Currently, TTL, COMS signal are not drive firsthand). Otherwise, System can not run normally.
* phase current and subdivision number setting：
Shift switch is adopted to set phase current and subdivision number in SH2046D 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 and the motor is 2-phase，its subdivision step angle is 1.8°/18=0.1°。
Warning：shift switch ON=0，OFF=1.

Table 2

Table 3

III、Installation Dimension：
Disperse heat by compelling structure is adopted, so when installing, please keep enough space to elimination of heat when the driver installed (unit: mm)

IV. Signal indication