The EC PLUS Ep is a multifunction and multiple-input unit for the regulation of speed of threephase electronically commutated motors installed on axial fans, which is designed to regulate different EC motors, in a simultaneous and coordinated way, using programmable input signals. Power supply: IP55: 2ph+PE 400Vac ±20% (other voltages upon request).


Power supply: 2ph+PE 400Vac ±20% (other voltages upon request).
Operating temperatures: -20°C ÷ 50°C
Junction box in thermoplastic material resistant to UV rays and with protection class IP55
Regulation mode MASTER or SLAVE
Principle of PID regulation. Optional Proportional mode
Setting Min and Max fan speed
Possibility to exclude different fan speed fields, excluding areas with high acoustic disturb
Input by external signal or transducer: 0-20mA, 4-20mA, 0-5V, 0-10V
RS485 Interface for MODBUS networking optional
Possibility of connection for temperature probes (default) or pressure probes
Auxiliary contacts available:

  • S1: mode direct(default with contact NO) – reverse (contact NC)
  • SP: Selection setpoint 1 or 2 (default SP1 with contact NO, SP2 with contact NC)
  • S5: Night speed limitation (default OFF with contact NO, ON with contact NC)
  • S2: ON – OFF speed control (default ON with contact NO, OFF with contact NC)
  • TK: contact for the connection of the thermal motor protection (default FANS ON with contact NC, FANS OFF with contact NO)

N° 1 programmable relay output:

  • RL1: contact relay of general alarm

N° 1 analogic output 0-10V (fan speed regulation)
Display for main working parameters
Led for power supply fault
Led for motor anomalies
Outputs for external supply

  • 5,0 Volt (Vrr) stable
  • 10,0 Volt (Vrr) stable
  • 20 Volt ±10%