SMCI12-2 —  Stepper Motor Controller

For new designs we recommend the CL-3 controllers/drives.

Technical Data

  • Interface RS485 
  • Rated Current (RMS) 1.8 A
  • Corresponding Motors Stepper Motors 
  • Number of Digital Inputs
  • Number of Analog Inputs
  • Digital Outputs
  • Encoder Input  
  • Weight 0.05 kg
  • Operating Voltage 12 VDC - 24 VDC
  • Peak Current (RMS) 2.7 A
  • Firmware Generation V1 
  • Type of Digital Inputs 5 V 
  • Type of Analog Input -10 - +10 V 
  • Type of Digital Output open-drain (30 V max.) 
  • Brake Output  
  • Temperature Range 0 °C - 40 °C



Knowledge Base

The motor controllers and Plug & Drive motors 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. You can find this information in the respective 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 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 an time-consuming process), the following interference-suppression circuit can be provided at each input in use....
More details


ZK-RS485-USB Converter RS485-USB $ 98.76
Z-K4700/50 Charging Capacitor $ 5.89
ZK-SMCI12 Cable Set SMCI12-2 $ 109.83
ZK-SMCI12-IO Cable Set SMCI12 without COM $ 26.02
ZK-XHP4-300 Motor Cable 0.3m $ 7.04


Order information

$ 142.89


  • 25 in Stock