Commander SK

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Simplicity with Function



  • IP20
  • UL TYPE lor NEMA 1 rating with optional cover + conduit entry kit
  • Ambient temperature -10°C to +40°C @ 3kHz switching
  • Humidity 95% maximum (non-condensing)
  • Electromagnetic Immunity complies with EN61800-3 and EN61 000-6-3 and 4
  • Electromagnetic Emissions complies with EN61800-3 (second environment) as standard. Complies with EN61O00-6-3 (residential) and EN61 000-6-4 (industrial) generic standards with optional footprint EMC filter


  • Open loop vector control, V/Hz
  • Speed or torque control
  • Reference input: 0-1 OV, 0-20mA, 4-20mA, Presets, Pulse, PWM (-10 to + 10V SM-I/O Lite option)
  • Digital I/O – All configurable
    • 4 inputs, not stop, run, jog, 10caVremote (default)
    • 1 I/O zero speed (default)
    • 1 relay drive health (default)
  • Switching frequency: 3kHz (default)
    • 230V: 6, 12, 18kHz
    • 460V: 6, 12kHz
  • Output frequency 0 to 1500Hz
  • Accel and Decel ramps (linear and S type)
  • Positive logic control
  • Serial communication
    • Modbus RTU RS485 via R J45 connector
    • Baud rate 4800, 9600, 19200 or 38400 bits per second
  • DC injection braking as standard
  • Dynamic braking transistor as standard
  • Dynamic motor flux V/Hz for energy saving
  • Quadratic motor flux V/Hz for fan and pump optimization


  • Undervoltage, Supply and DC Link overvoltage, Phase loss, Drive overload, Instantaneous overcurrent, Short circuit, Ground fault. Drive thermal, Watchdog, Motor thermal

General Characteristics

  • Maximum overload 150% of rated current for 60 sec
  • Intelligent Thermal Management (lTM) optimizes switching frequency
  • 8 preset speeds
  • Flying start
  • Mains dip ride through
  • Automatic no-spin autotune for fast performance optimization
  • Keypad access to all parameters for more demanding applications

Approvals & Listings

ISO 9001 :2000
ISO 14001
UL File Listed 8D14
Meets IEC Vibration, Mechanical Shock and
Electromagnetic Immunity Standards
Low Voltage Directive
UL type 1 with kit
Certified Manufacturing Facility
Certified Manufacturing Facility


Commnader SK AC Drive Dimensions


w h d
in mm in mm in mm


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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