Fcontrol frequency controllers for 400V large-scale fans—featuring an all-pole sine-wave filter—are available in the "Basic" version with an integrated display for speed control.Speed setpoints can be provided via a higher-level control system using a 0–10 V signal, or manually by connecting a potentiometer.
Two-stage operation with adjustable speeds is also an option. These frequency converters regulate asynchronous motors in a manner that is energy-efficient, demand-oriented, and gentle on the motor.
Advantages:
IP54 protection rating
Highly energy-efficient
Operation without shielded motor cables
No cable length restrictions imposed by the Fcontrol unit
Operation without electromagnetic motor noise (ideal for noise-sensitive areas)
Integrated sine-wave and interference suppression filters
No risk to motors, as they are supplied with sinusoidal voltage matching the mains voltage; no motor choke required
Equipment/Features:
Integrated all-pole sine-wave filter
LC multifunction display with plain-text readout
1 analog input for speed setpoint
1 digital input
1 potential-free fault signal contact
Integrated motor protection function
3 x 208–400 V
50/60 Hz
Notes:
Without main switch
ATTENTION: 10% safety margin
Cable cross-sections must be calculated by an on-site electrician.
When using a frequency converter, a universal-current-sensitive residual current device (RCD) must be installed!
Temperature sensors cannot be connected directly. 0–10 V control signal required, e.g., with T-Control.