Commander SK

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Simplicity with Function

Input / Output

SM-I/O LITECommander SK SM-I/O Lite

Additional I/O

  • 1 Analog Input – 0.1 % Resolution (+/- 10V, 4-20mA or 0-20mA)
  • 1 Analog Output – 0.4% Resolution (0-10V, 4-20mA or 0-20mA)
  • 3 Digital Inputs
    (if the encoder reference port is used there are only 2 digital inputs available)
  • 1 Encoder Reference Port (55kHz Quadrature or 110kHz F/D) *
  • 1 Relay Contact
  • 24 Volt I/O supply
  • 5 Volt Encoder supply

SM-I/O TIMERCommander SK SM-I/O Timer

Additional I/O with Real Time Clock

  • I/O specification as per SMI/O Lite Module
  • Real Time Clock / Calendar with the following format:
    Year-Month / Date – Date of Week / Hours (24) Minute / Second
  • Day Light Savings Mode
  • Battery Back Up
  • User Adjustable Time


Commander SK SM-I/O PELVChemical industry conformance to NAMUR NE37 gives security in demanding application enviornment.

This module provides PELV (Protective Extra Low Voltage) double insulated digital and analog I/O to meet IEC 61131-2, Clause 3.3.1 Type as well as NAMUR NE37 specifications for chemical industry applications.

  • Analog Input (4-20mA or 0-20mA)
  • 1 Analog Output (4-20mA or 0-20mA)
  • 1 Digital Input
  • 4 Digital Input/Output
  • 2 Relay Contact (2A @ 240VAC, 4A @ 30VDC)

SM-I/O 120VCommander SK SM-I/O 120V

This module provides digital I/O rated for 120 or 240VAC for the Unidrive SP. These I/O conform to IEC 61131-2 120VAC standard.

  • 6 Digital Input (120VAC or 3 Digital Inputs @ 240VAC)
  • Relay Contacts (2A @ 240VAC, 4A @ 30VDC)


Description Order Code
I/O Expansion SM-I/O Lite
I/O Expansion SM-I/O Timer
Double insulated I/O Expansion SM-I/O PELV
120 Volt AC I/O Expansion SM-I/O 120V

Commander SK SM-I/O Devices

Information provided by Control Techniques, a world leader in the design, production and marketing of electronic drives for the control of electric motors.

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