Controller P is a multifunction and multiple-input unit for the regulation of speed of asynchronous three-phase motors installed on axial fans.

This device works as a voltage controller according to the cut phase principle (control over the three phases) in order to continuously increase and reduce the value of voltage supplied to three-phase AC motors mounted on the fan units.


Three-phases power supply: 3ph+PE 280-415V (-10%/+6%), 50/60Hz
Available controller sizes: 6A, 10A, 12A, 15A, 20A, 25A, 35A, 50AQ, 80AQ
Working temperature -20°C ÷ 40°C
Junction box in thermoplastic UV protected material with protection class IP54
Remote control: 0-20mA, 4-20mA, 0-5V, 0-10V(default)
Connection MODBUS RS485
Possibility to add card plug-in for connection LON (Plug-in on demand)
Possibility to connect temperature probe and pressure probe
2 programmable digital inputs D1-D1 / D2-D2 (Setpoint 1 o Setpoint 2, mode direct/reverse, ON/OFF speed controller, ON/OFF motor heating)
2 programmable relays for general allarms
1 programmable analogic output 0 – 10V
PID regulation mode
Setting Max and Min fan velocity
Display for main working parameters