SMCI33-2 –  Closed-loop stepper motor controller

For new designs we recommend the  C5-E controllers.

Technical Data

  • Interface RS485 
  • Rated Current (RMS) 2 A
  • Corresponding Motors Stepper Motors 
  • Number of Digital Inputs
  • Digital Outputs
  • Encoder Input  
  • Number of Analog Inputs
  • Brake Output  
  • Operating Voltage 12 VDC - 48 VDC
  • Peak Current (RMS) 3 A
  • Temperature Range 0 °C - 40 °C
  • Type of Digital Inputs 5-25 V wide-range 
  • Type of Digital Output open-drain (30 V max.) 
  • Encoder Signal Type incremental 
  • Type of Analog Input -10 - +10 V 
  • Weight 0.13 kg



Knowledge Base

The motor controllers and motors with integrated controllers have open collector outputs. To switch a load or PLC, you require a relay according to this circuit diagram. The flyback diode is required. Please don't exceed the maximum switching current or the maximum voltage of the selected controller/drive. You can find this information in the product manual.  SMCI35:  A load/PLC cannot be connected with this controller.
More details
Depending on the cable type, routing and length, an overcoupling onto the neighboring control line may occur with 24 V control signals. In motor controllers/drives with wide range inputs (5–24V), this can cause a second input that is not activated to be recognized as high. To prevent this without having to change the wiring (which can be a time-consuming process), the following interference-suppression circuit can be provided at each input in...
More details


ZCPHOFK-MC0,5-2  * Connector $2.73
ZCPHOFK-MC0,5-4  * Motor connector $4.88
ZCPHOFK-MC0,5-5  * Connector $5.60
ZCPHOFK-MC0,5-12  * Connector $11.35
Z-K4700/50 Capacitor $5.89
ZK-RS485-RS232 Converter cable RS485-RS232 $100.48
ZK-RS485-USB Converter cable RS485-USB $98.75
ZK-SMCI-LD Converter cable encoder $59.51
* Included in the scope of delivery for SMCI33-2.


Order information



  • 25 in Stock