●  High performance, low noise, affordable price, high speed and torque, excellent stability

●  16 selections of uniform angle and constant torque subdivisions, the max resolution up to 60000 steps/rev

●  Adoption of 3-wires-control circuit greatly reduces noise and increases the rotation stability

●  The max response frequency up to 200Kpps

●  Once the pulse stops for more than 100ms, the coil current will be reduced to 20%～80% ( set by STOP ) automatically

●  Bipolar constant current chopper control improves the output speed and power of the motor

●  Optically isolated signal I / O

●  Current range: 0.6A～4.2A / be devided into 16 grades

●  Single power input, voltage range :AC110～220V ( The optimal voltage is AC220V )

●  Error Protection: ① Overheat protection ② Overcurrent ③ Low voltage protection

●  Size：178×118.5×68（mm）, Net weight：1.25kg

       SEA3D420 is a microstep motor driver with uniform angle and constant torque subdivisions, voltage range is AC110～220V ( the optimal voltage is AC220V ), single power supply. It matches 3 phase hybrid stepper motors which rated current under 4.2A, external diameter 86mm～130mm, and outlets 3 or 6.

       Bipolar constant current chopper control makes the motor run smoothly with lower noise and higher stability; The increase of the voltage greatly improves the drive capability and speed. The coil current will be automatically reduced to 20%～80% ( set by STOP ) onece the pulse stops for more than 100ms, it reduces the heat of driver by 50%, reduces the heat of motor as well. Users can choose low speed high subdivision which up to 60000 steps/rev, it improves the precision, reduces the vibration and noise.

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1. STOP/Im is stable state current adjuster, it can be set to 20%~80% of the normal output current ( Adjusting it clockwise will increase the current and counterclockwise decrease current )

2. RUN/Im is normal running current adjuster ( please check the details as follows )

1. Please do not reverse the power supply, input voltage not more than AC230V;

2. The input control signal level is +5V, if higher than +5V, needs to add a resistor on PU-, DR-, FM- ( do not add on + sides );

3. This model of the driver uses a special control circuit, so it matches stepper motor of 6 or 8 outlets only;

4. The driver will automatically stop working when the temperature exceeds 70 degrees, the O.H indicator light normally on, temperature drops to 50 degrees it automatic recovers to work, please install radiator when it's in overheating protection;

5. When the current exceeds rated value or the voltage is lower than rated value, the O.C indicator light normally on, please check the connections and other short troubles needs to re-up power after the faults cleared, or if the power voltage is too low;

6. The PWR green indicator light normally on when the driver is powered on;

7. The TM indicator light comes on when the pulse input go crossing the zero point.