Product Information Page

Digidrive SK Inverter

Digidrive SK has been designed as a simple, compact, cost effective AC motor speed controller that delivers performance with simplicity and ease of use. With all the parameters you need for 90% of applications printed on the front of the drive,  Digidrive SK ensures installation and commissioning are straight forward.

However, for more demanding applications, Digidrive SK can deliver the benchmark functionality of its larger Solutions Platform products and at no extra cost on the base drive itself. Plug-in options, dynamic performance, PLC functionality and other benchmark features ensure that in more complex applications Digidrive SK can deliver more than the average general purpose drive – giving you lower cost solutions and better productivity in your motor control applications.

Key Features

  • From 0.25 to 2.2kW, 1 phase 200V
  • From 1.1 to 2.2kW, 3 phase 200V
  • From 0.37 to 4.0kW, 3 phase 400V
  • Easy to set-up – all the parameters   you need (90% of typical applications) are printed on the front
  • Easy installation – choose between   simple panel mounting and DIN-rail mounting (up to 1.5kW)
  • Simple connections – easy access   terminals with clear marking
  • Simple start-up – easy push button   set-up – no need for complex programming
  • Communications – the popular global   fieldbus options are available PROFIBUS-DP, INTERBUS, DeviceNet, CANopen,   Ethernet
  • PLC Functionality – LogicStick and   IEC61131-3 ladder and function block programming
  • Wide range of I/O – extra I/O options   available including Real Time Clock
  • Performance – inherits the torque   linearity and speed torque performance from the Solution Platform products
  • Open loop vector control
  • Speed or torque control
  • Speed reference input: 0-10 V, 0-20   mA, 4-20 mA, (-10 to +10 V SM-I/O Lite option)
  • 4 digital inputs
     – World (enable,   run forward, run reverse, local/remote)
    -  USA (not stop, run, jog,   local/remote)
  • Switching frequency: 3 (default) – 6 –   12 – 18 kHz
  • Output frequency 0 to 1500 Hz
  • 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 optimisation
  • Undervoltage, Supply and DC Link   overvoltage, Phase loss, Drive overload, Instantaneous overcurrent, Short   circuit,
    Ground fault, Drive thermal, Watchdog, Motor thermal
  • Maximum overload 150% of rated current for 60s
  • Intelligent Thermal Management (ITM) optimises switching frequency
  • 8 preset speeds
  • Flying start
  • Mains dip ride through
  • Automatic no-spin autotune for fast performance optimisation
  • Keypad access to all parameters for more demanding set-ups