Power supply voltage 18 [Vac] ÷ 56 [Vac]
Separated logic power supply 24 [Vcc] ÷ 24 [Vcc]
Output current 0.0 [A/ph rms] ÷ 4.2 [A/ph rms] 0.0 [A/ph peak] ÷ 6.0 [A/ph peak]
Interface control mode Serial RS485 Modbus RTU
Digital inputs 4 optoisolated digital inputs 200 kHz 5 Vdc line driver or 24 Vdc PNP.
Digital outputs 2 optoisolated digital outputs PNP, 24 Vdc - 100 mA.
Analog inputs 1 analog input (potentiometer or ±10Vdc)
Open or Close loop Closed loop
Step resolution Stepless Control Technology (65536 emulated positions per turn)
Safety protections Over/under-voltage, Over Current, over Temperature, short circuit phase/phase and phase/ground
Operative temperature 0 [°C] ~ 50 [°C]
Storage temperature 0 [°C] ~ +55 [°C]
Humidity 0 [%] ~ 90 [%]
Protection class IP20
Dimensions H x L x W 124,0 [mm] x 60,0 [mm] x 120,5 [mm]
Weight 2,05 [Kg.]
Software settings and connections SCI service interface for configuring in real time with SL-Monitor software.
Bipolar holding torque 210 [Ncm] min.
Rotor inertia 570 [g.cm²]
Encoder 400 ppr incremental (option 1000 ppr or 2000 ppr)
The SM4A line is a series of high performance and local logic vector drives suitable to be connected via CANbus (CANopen DS301/DS402), or serial (Modbus-RTU) to single or multi-axle systems in slave mode. Consisting of a Full Digital vector drive with "Else" firmware and a high torque 50-pole NEMA24 motor. Quickly configurable thanks to the interface for PC Windows SL-Monitor, these units are available in a wide range of powers. The SM4A series, as well as combining compactness and power, offers maximum versatility and reliability, allowing considerable savings in wiring and electrical panels. With the hardware resources available in the different versions, together with the implementation of the Advanced Power Motion Module, you can operate your application in a quick and easy manner.

Principal features

  1. ● Multiple control modes
  2. ● Equipped with advanced safety functionalities: √ fully tested for direct installation unit √ built in watch dog functionality √ integrated diagnostic and fault monitoring √ separated power supply for logic and power √ on field working errors buffering and handling
  3. ● Closed loop of torque, speed and position
  4. ● Stepless control technology
  5. ● Low motor vibrations
  6. ● Compact size
  7. ● Low mechanical noise
  8. ● No resonance
  9. ● IP65 protection class
  10. ● Low heat generation
  11. ● High reliability
  12. ● AC power supply
  13. ● High speed and torque


  1. • Control modes:
  2. • Velocity control mode
  3. • Wide range of Positioning Control Modes (homing, relative, absolute, target)
  4. • Electric Gear with programmable gear ratio to track external master reference (from fieldbus or incremental encoder) of motor Speed and Position
  5. • High speed I/O triggered motor start & stop to event syncronizing for fast response demanding application: labeling, nick_finder, on fly cut., etc ...
  6. • Multi Axis movements syncronization capability
  7. • On fly change among any Motion Module Control Modes
  8. • On fly Electric Gear Enable/Disable capability
  9. • Drive control through commands by Master Controller. Suitable for multi axes systems (up to 127 drives). Built in Powerful Motion Module functionality assures Perfect Synchronization among axes and reduces Master Controller workload.
  10. • Configuration of the drive with SCI service interface. It is available the software kit SM4A_SERV00-SL comprehensive of converters e cables from serial service to RS485 and from RS485 to USB. In the kit you will find a CD-Rom with the necessary SL-Monitor software.


Operating with digital signals with external controller or via serial RS485 (Modbus-RTU)


Setting of parameters and functions in real time with serial service interface.


Mechanical drawing

Dimensions in mm


Related product to SM4A342PM272D40c0400
Configuration environment for SlimLine drives with CANbus fieldbus interface.

Configuration environment for SlimLine drives with CANbus fieldbus interface.