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SM4247 with SMD-1.6mini ver.2

Stepper motor with integrated controller SM4247 with SMD-1.6mini ver.2

Size NEMA 17
Flange 42 mm
Holding torque 4.4 kgf*cm
Control methods STEP/DIR, RS-232
Microstepping 1/1…1/256

Stepper motor SM4247 with integrated microstepping controller SMD-1.6mini ver.2 is a ready to work assembled unit. The drive provides smooth running, high dynamics and precise positioning. The drive provides both STEP/DIR pulse position control and control by commands via RS-232.

technical data

Technical data

Voltage 12…24VDC
Holding torque 4.4 kgf*cm
Size 42 mm (NEMA 17)
Control methods STEP/DIR, RS-232
Step angle 1.8°
Microstepping 1/1…1/256
Resistance per phase 1.65 Ohm
Inductance per phase 2.8 mH
Rotor inertia 68 gcm2
Weight 0.35 kg
High voltage level 5 - 24 VDC
Low voltage level 0 - 1 VDC
Input current of control signals 10 - 16 mA
Communication interface - RS232:  
Baud 115200
Bits 8
Parity none
Stop bit 1

Dimensions of stepper motor SM4247 with integrated controller SMD-1.6mini ver.2

Description of stepper motor with integrated driver SMD-1.6mini ver.2

Stepper motor with integrated driver SMD-1.6mini ver.2 is designed and manufactured taken into account the rich experience of our company's specialists and the latest circuitry. Thanks to the design and new engineering solutions, SMD-1.6mini ver.2 drivers provide excellent dynamics of stepper motors, fast acceleration and sufficient torque at high speeds.

When using a stepper motor with an integrated driver, the consumer receives the following benefits:

  • Finished assembled product – motor with control unit. There is no need to preparecommutation. Motor and driver are connected and tuned for optimal performance;
  • Save space. It is not necessary to provide an additional installation space for the driver;
  • The absence of extra wires that could reduce the reliability of the design, especially in the moving mechanisms

Connection of stepper motor with integrated driver SMD-1.6mini ver.2

When controlling a stepper drive with pulse logic signals, the driver processes the input signals STEP (pulse), DIRECTION (level) and ENABLE (level). Control inputs can be connected with common cathode and common anode.

General connection diagram

Wiring diagram for logic signals - common cathode
Wiring diagram for logic signals - common cathode
Wiring diagram for logic signals - common anode
Wiring diagram for logic signals - common anode
Connection of the DC brush motor speed controller BMD-20DIN
Connecting the interface converter to the SMD-1.6mini ver.2 driver

RS-232 connection is required to set parameters or control a stepper drive via RS-232. For most computers without a built-in COM port, an RS-232/USB interface converter must be used.

The connection of the USB-UART interface converter with the SMD–1.6mini ver.2 driver is shown below. The RX and TX pins of the driver are connected to the TXD and RXD pins of the converter, respectively.

Software for parameterization

The drive provides configuring motor control parameters via RS 232. It is also possible to directly control the motor with commands from a PC or PLC. SMD mini control software is designated for quick parameterization of the drive, as well as for performing a given movement, setting speed and acceleration, starting and stopping the motor, turning on/off motor phases.

Software for parameterization