TwisTorr 74 FS onboard controller

The 70 L/s turbo pump onboard control unit is a solid-state frequency converter driven by a single chip microcomputer. It consists of two PCBs, which include power supply and three-phase output, analog and input/output section, microprocessor, and digital section. The power supply, together with the three-phase output, converts the single phase AC mains supply or 24 VDC supply into a three-phase, low voltage, medium frequency output, which is required to power the pump. A remote host computer can operate the controller via the serial connection. Windows-based software is available (optional). The TwisTorr 74 FS onboard controller can be mounted onboard, on the bottom of the TwisTorr 84 FS pumps.


Product details Related Product


  • Drives the TwisTorr 74 FS pump and the vent valve
  • Powers the pump cooling fan
  • Provides and acquires the pressure of the wide range gauge
  • Remote I/Os
  • Navigator default serial compatible with the previous RS 232 and 485 version
  • Able to operate with active gauges (full range gauge FRG-700 and FRG-702)


Input voltages
Navigator controller, 24 Vdc  24 Vdc ± 10%
Navigator controller, 100/240 Vac 100 ÷ 240 Vac ± 10%
Input power
Navigator controller, 24 Vdc 80 W
Navigator controller, 100/240 Vac 180 VA
Input frequency
Navigator controller, 100/240 Vac 50 to 60 Hz ± 5%
Fuse 2 x T4 A 250V
Output voltage 60 Vac
Output frequency 1167 Hz
Output power
Navigator controller, 24 Vdc 50 W
Navigator controller, 100/240 Vac 70 W (ramp)
50 W (Normal and Autotuning)
Operating temperature +5 ÷ +45 °C
  0 – 90% (not condensing)
Storage temperature -20°C ÷ +70°C
0 – 95%



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