Power supply voltage 18 [Vac] ÷ 100 [Vac]
Separated logic power supply 24 [Vcc] ÷ 24 [Vcc]
Output current 0 [A/ph rms] ÷ 8.0 [A/ph rms] 0 [A/ph peak] ÷ 11.0 [A/ph peak]
Interface control mode Serial RS232/RS485 Modbus RTU
Power stage H bipolar chopper bridge at 40 KHz.
Digital inputs 4 digital optoisolated inputs
Digital outputs 2 digital optoisolated outputs (100 mA)
Open or Close loop Closed loop
Step resolution StepLess Technology
Safety protections Over / under-voltage, over current, over temperature, short-circuit phase / phase and phase / phase ground
Operative temperature 0 [°C] ~ +50 [°C]
Storage temperature 0 [°C] ~ +55 [°C]
Humidity 0 [%] ~ 90 [%]
Protection class IP65
Dimensions H x L x W 135,0 [mm] x 86,0 [mm] x 123,5 [mm]
Weight 2,60 [Kg.]
Software settings and connections Programmable with ATOMIC IDE
Bipolar holding torque 340 [Ncm] min.
Rotor inertia 1000 [g.cm²]
Encoder 400 ppr incremental

Principal features

  1. ● Multiple Control Modes
  2. ● With Advanced Safety Features: √ integrated diagnostics and monitoring of faults √ separate power supply for logic and power √ error buffer and field management √ Watch dog functionality integrated
  3. ● Closed loop of torque, speed and position
  4. ● Low motor vibrations
  5. ● Low mechanical noise
  6. ● Low heat generation
  7. ● Compact size
  8. ● IP65 Protection
  9. ● No resonance
  10. ● High reliability
  11. ● AC Power supply
  12. ● Wide range of powers


  1. • Control mode
  2. • Velocity control mode
  3. • Different 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. • CAM mode with profiles programming
  8. •On fly change among any Motion Module Control Modes
  9. •On fly Electric Gear Enable/Disable capability
  10. • Control of the drives by commands from the Master Controller. Suitable for Multi-Axis Systems (up to 127 drives). Integrates all the features of the Power Motion Module that ensures perfect synchronization between the axes and reduces the workload of the Master Controller
  11. .Pogramming and debugging through Modbus interface. For this purpose, we provide the SM2A_ATMU-00 soft-start kit, including a serial-to-USB adapter and cables. The kit is equipped with a CD-Rom with the Atomic IDE software in the demo version
The SM line is a series of full digital drives with an integrated 50-poles motor, with local logic, programmable and equipped with PLC functionality. Suitable for use in 'stand alone' mode and connected to HMI touch screen for application parameters, these units have a serial interface (Modbus-RTU) for programming and debugging the application thanks to the Atomic IDE software environment which allows the user to access all the functions and resources of the device and to manage and synchronize the Movement Module and the resources of other drives with each process event. They also have ready-to-use and easily customizable modules such as: label management, cam management, cable processing, plate orientation, adjustment of printing registers and others.
Download area for SM2A560PN343A40c0499


PLC functionalities integrated

Connection /Control

Drive's programming and debugging with Atomic IDE


Mechanical drawing

Dimensions in mm


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Programming environment for SM2A servo-drives.

Programming environment for SM2A servo-drives.