1-/2-/3-speed fan

ECM fan

 

N1

RDF280.VXX..

L, N

AC 230 V power supply, mains and neutral

Q1, Q2, Q3

1-/2-/3-speed fan output (relay output), AC 230 V

Q5

Output, external/internal circulation, AC 230 V

Q14

SPST relay output (NO) (AC 230 V)

Y50

DC 0…10 V output

M2

Input reference ground for Y50

X1

Multifunctional input, e.g., sensor or switch

M1

Input reference ground for X1

A, B

Modbus terminals, no isolation

REF

Modbus reference ground