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📞 1300 987 789 |
📞 1300 987 789 |


VFD units S1100-4t15G Frequency Inverter 380V | Three phase | 15KW

A Variable Frequency Drive (VFD) is a type of motor controller that drives an electric motor by varying the frequency and voltage supplied to the electric motor. Other names for a VFD are variable speed drive, adjustable speed drive, adjustable frequency drive, AC drive, microdrive, and inverter.


  • Professionally customised core computing program.
  • Smooth shift on forward and reverse rotation.
  • Automatic torque compensation.
  • Automatic slip compensation.
  • Advanced control technology of switching 3-phase to 2-phase, reduces heat by 33.3o/o.
  • Adopting nanometer manufacturing technology.
  • CPU with built-in dual core dramatically improves the computing speed.


  • Protect function: over voltage(OU), low voltage(LU), over current(OC), over heat(OH), over load(OL).
  • Over voltage and over current stall prevention.
  • The technology of integration hardware and software wave filtering for better anti-jamming effects.
  • 3-level prohibited frequencies can avoid resonance effectively.
  • Braking using software control,be able to adjust brake-bit and brake occupating coefficient.

High Performance

  • Automatic torque compensation-start torque can be up to 150% at 2HZ.
  • Automatic slip compensation-more accurate speed.
  • Ultra-low noise-motor runs more stably.
  • High overload capacity-150% rated torque can last for 65 seconds.


  • PIO feedback control.
  • Oscillation frequency function.
  • Built-in PLC enables 16-levelspeed program running.
  • Multifarious frequency input methods:
- pulse input,
- AVl/ACI superimposed,
- UP/DOWN, RS-485.
  • Multifarious control methods:
- operation control,
- exterior terminal,
- two-line/three-line control,
- RS-485 control.
  • Multifarious stop methods:

- (OFF stop, stop for AVI zero).

  • Multifarious input methods:
- external EF,
- counting input,
- frequency switching,
- Pendulum frequency input and so on.
  • Multifarious output methods:
- multi-function relay output,
- multifunction collector open circuit output.
  • Multifarious output methods:
- indication of forward and reverse rotation,
- counting arrival.
- program operation,
- and faults.



  • Power failure memory.
  • Running-locked when power on.
  • Automatic voltage regulation (AVR).
  • DC brake.
  • Password protection.
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