Technology function

Functions specific to pumps, fans and compressors are already integrated, e.g.:

• Automatic restart
  Application restart after a power failure or fault occurrence
• Flying restart
  Connection of the inverter when the motor is running
• Flux reduction
  Automatic adaptation of the motor current to the prevailing load conditions in U/f control mode (ECO mode) as well as in sensorless vector control mode
• Cascade connection
  Load-dependent connection and disconnection of a maximum of three additional motors by the inverter in order to provide a largely constant output power (implemented by means of an additional external circuit)
• Sleep mode
  Startup or shutdown of the drive when the relevant value drops below an external setpoint or the internal PID controller setpoint
• 4 integrated PID controllers
  One PID controller for controlling the drive speed as a function of pressure, temperature, flowrate, fill level, air quality and other process variables, and a further three PID controllers with freely configurable outputs, e.g. for controlling valves (heating, cooling) or flaps
• Emergency mode
  Special inverter operating mode that enhances the availability of the drive system in the event of a fire
Multi-zone controller
• Closed-loop control of a zone with up to 3 sensors for pressure or temperature, or
• Closed-loop control of two independent zones, each with one sensor
• Bypass mode
  When the setpoint is reached or a fault occurs, the system changes over to line operation (implemented by means of an additional external circuit)
• Programmable time switches
• Real-time clock
  For time-dependent process controls, e.g. to reduce the temperature of a heating control at night and with automatic daylight saving/standard time switchover
• Freely programmable logical function blocks
  For simulating simple PLC functions