Features

  • Protection of overload and over-current condition
  • Protection of open-phase and ground fault condition
  • Protection of over-voltage and under-voltage
  • Overheat protection
  • Current limit function
  • Interlock protection of control power supply
  • Two sets of control power hot standby redundancy
  • Power cell bypass function (optional)
  • Cabinet door opening alarm function
  • Synchronizing switch function between mains frequency and output variable frequency
  • Motor soft starting, no impact to mechanical equipment and power network
  • High efficiency: at rated condition, the efficiency of VFD is 98%, the overall efficiency including the transformer is 96%
  • Communication of power units using optical fiber ensures sufficient electric isolation
  • Embedded PID regulator with close-loop control
  • Multiple communication methods with host computer, isolated RS 485 interface, standard MODBUS RTU communication protocol, optional PROFIBUS DP, industrial Ethernet communication protocol
  • Three kinds of control modes including local control, remote control and host control

  • Multiple speed adjustment modes including local, host, simulation and switching signal
  • Accurately records faults history more than 10 times
  • Compact construction, small dimensions
  • Special design according to customer's requirement