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MFC | multifunctional electronic fan speed controller
The MFC series automatically control the speed of single phase voltage controllable motors (230 Vac/50 Hz) according the values of multifunctional inputs (Ai1 or Ai2). These inputs can be temperature sensors (PT500) or other sensors with output 0-10 V or 0-20 mA
(pressure, CO2, humidity, light). There is a possibility to connect this device to a BMS (building management system) interface or to use analog voltage (0-10 V) for remote enabling
or disabling.
The working principle of this controller is based on the so-called ‘zero crossing detection’.
An optotriac combined with a microprocessor ensures flawless and accurate control. There
is a rotary switch to choose the working mode. When the mode is selected, the controller
will program the inputs automatically, such as temperature probe or analog inputs.

t F e at u r e s
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230 Vac/50 Hz
Infinitely variable control
MFC-0-15- AT
Minimum and maximum speed setting
MFC-0-30- AT
Several preset programs (modes) selectable by switch
MFC-0-60- AT
Enclosure: plastic (R-ABS, UL94-V0, RAL 7035), IP54
MFC-0100- AT
Ready mounted cable glands
Maximal ambient temperature: 35 °C
According to the low voltage directive: 2006/95/EC / the EMC directive: 2004/108/EC
Sensors not included

Imax

Fuse

1.5 A

3.15 A (5*20 mm)

3.0 A

5.0 A (5*20 mm)

6.0 A

10.0 A (5*20 mm)

10.0 A

16.0 A (6*32 mm)

MIN
MIN

MAX

AO

VCC

MAX

MIN

MAX

MIN

MAX

t W i r i n g d ia g r am & g e n e r al ov e r vi e w

INPUTS
High voltage: power supply 230 Vac
L
line
N
neutral
Pe
power earth
Low voltage: input/control signals
Ai1
multifunctional input 1 (temp. probe PT500 or
0-10 V/0-20 mA)
Ai2
multifunctional input 2 (temp. probe PT500 or
0-10 V/0-20 mA, the device detects the PT500
automatically)
GND
ground
OUTPUTS
High voltage:
L1
230 Vac unregulated out (Imax 2 A)
M
output for motor
REL
relay output with NO and NC contacts
(230 Vac/16 A resistive)
Low voltage:
VCC
power supply 24 Vdc/100 mA
OUT
analog output (0-10 V/100 mA or 0-20 mA selected by switch)

switch

Mode switch
0.
1.
2.
3.
4.
5.
6.
7.

HE-heating mode with/without OFF
VE-ventilation mode with/without OFF
DT mode (differential temperature) without off
Analog VE mode (analog signal) with/without OFF
HE-heating mode with/without OFF and remote control
VE-ventilation mode with/without OFF and remote control
Analog VE mode (analog signal) with/without OFF and remote control
Analog mode (EVS) without OFF and inverse control

19/09/2012

S.3.2.1