Features:

  • Multiple pumps distance frequency, the frequency automatic switching, automatic energy saving operation
  • PlD parameters self-tuning to ensure a constant + programmable control (PLC) function Highly energy efficient, to achieve pressure, flow, level and temperature of the automatic control
  • Potentiometers / keyboard / optional multi-speed mode, automatic or programmable 7 steps adjustable speed running.
  • Automatic power off tracking function, the motor smoothly operates in the short-term power-off unattended operation.
  • RS232/485 interfaces for building automation management
  • Small size, easy installation
  • Soft-start, soft stop may extend the operational life of mechanical load
  • Wide voltage range, to adapt to a variety of conditions

 

Radio Interference Countermeasures

  • Radio interference in the input and output lines and the drive itself will be launched in the input and output sides are set on both sides of the noise filter, and all shielded with a metal box, then you can reduce the radio interference
  • The connection line between the inverter and motor should be as short as possible
  • Inverter and the motor wiring distance
  • Wiring between the inverter and the motor where long distance, high harmonics from cable leakage current, the inverter and peripheral equipment will adversely affect

 

Wiring distance Below 50m Below 100m Over 100m
Carrier frequency Below 15kHz Below 10kHz Below 5kHz

 

shema
shema
  • Multi pump controler Radio interference in the input and output lines and the drive itself will be launched in the input and output sides are set on both sides of the noise filter, and all shielded with a metal box, then you can reduce the radio interference The connection line between the inverter and motor should be as short as possible
  • Powtran http://www.powtran.com/en/index.html