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iS7

3 phase 0.75 – 375kW
by LSIS
TECHNICAL DATA

iS7 Series – High-Performance Dual-Rated VFDs

Three-phase | 0.75 to 375 kW


Key Features

  • Dual rating: Constant torque / Variable torque
  • Selectable control modes:
    • V/f (Voltage/Frequency)
    • V/f PG (with pulse generator feedback)
    • Sensorless vector control
    • Sensored vector control
  • High-speed processing: 150 MIPS (Million Instructions Per Second) DSP for fast and accurate control

Advanced Functions & Performance

  • Droop control for automatic torque balance in multi-motor systems
  • KEB (Kinetic Energy Buffering) protection
  • Ride Through (LV Trip Delay) protection
  • Under Load Trip protection
  • PMSM sensorless vector function for Permanent Magnet Synchronous Motors
  • Power brake & Flux brake functions for enhanced braking performance
  • Static motor parameter auto-tuning for optimal motor matching

Ease of Use & Flexibility

  • Easy Start Mode for fast setup
  • User & Macro group for customized parameter sets
  • Multi-Function Key for quick access to essential functions
  • Second motor control and independent parameter set (sensorless)

Mechanical & Built-in Features

  • Available IP54 enclosure (0.75–22 kW [1–30 HP]) as a built-in option
  • Built-in RS485 communication (LS Bus / Modbus RTU)
  • Built-in dynamic braking transistor (0.75–22 kW [1–30 HP])
  • Optional built-in EMC Filter and DC Reactor:
    • EMC Filter (0.75–22 kW [1–30 HP])
    • DC Reactor (0.75–220 kW [1–215 HP])

Control & User Interface

  • Wide graphic LCD keypad, supporting 6 languages for intuitive operation
  • Extension I/O boards (optional): up to 11 inputs and 6 outputs
  • Optional PLC board (Master-K platform): up to 14 inputs and 7 outputs

Optional Communication Boards

  • Profibus-DP
  • DeviceNet
  • Modbus TCP
  • Rnet
  • LonWorks
  • CANopen

Software & Monitoring

  • PC-based monitoring and commissioning software: Drive View