800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN
19
N40067 - 7/11 - Subject to change. © Belimo Aircontrols (USA), Inc.
Wiring for Damper Actuators and Control Valves
MFT, Spring Return, 24V
PWM
Floating Point
Two Position
Override Control to min, mid, max, Positions
Functions
0%
50%
100%
Control mode acc. to Y
Min*
Mid*
Max*
Normal**
* Default selectable 0-100%. See Configuration Data Sheet.
** Customizable. See Configuration Data Sheet.
A BC
500 Ω
Ω
Blk (1) Common
Red (2) + Hot
Wht (3) Y
1
Input,
2 to 10V
(–)
(+)
Line
Volts
24 VAC Transformer (AC only)
B
C
A
1/4 watt
Blk (1) Common
Red (2) Hot
Wht (3) Y Input
(5) U Output
Line
Volts
24 VAC/DC Transformer
a
(–)
(+)
CCW CW
CCW CW
Line
Volts
(–)
(+)
24 VAC Transformer
Blk (1) – Common
Red (2) + Hot
Wht (3) Y
1
Input
(5) U Output 2 to 10V
CCW
CW
AB
5
CCW
CW
AB
5
Direction of rotation switch
A
B
Actuators: TF24-MFT US LF24-MFT(-S) US
Actuators with plenum rated cable do not have numbers on
wires; use color codes instead. Actuators with appliance
cables are numbered.
3
Actuators may also be powered by 24 VDC.
5
8
Equipment damage!
Actuators may be connected in parallel if not mechanically
mounted to the same shaft. Power consumption and input
impedance must be observed.
4
4
9
8
10
12
CAUTION
Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury. It may also be used to
alert against unsafe practices.
Warnings and Cautions appear at appropriate sections throughout
this manual. Read these carefully.
Hazard Identification
INSTALLATION NOTES
Control signal may be pulsed from either the Hot (Source)
or Common (Sink) 24 VAC line.
10
For triac sink the Common connection from the actuator must
be connected to the Hot connection of the controller. Position
feedback cannot be used with a Triac sink controller. The
actuator internal common reference is not compatible.
IN4004 or IN4007 diode. (IN4007 supplied, Belimo part
number 40155).
9
Contact closures A & B also can be triacs. A & B should both be
closed for triac source and open for triac sink.
12
Meets cULus requirements without the need of an
electrical ground connection.
Blk (1) Common
Red (2) + Hot
Wht (3) Y Input
(5) U Output
Line
Volts
24 VAC Transformer (AC only)
CCW CW
(–)
(+)
8
4
4 3
7
APPLICATION NOTES
7
A 500 Ω resistor converts the 4 to 20 mA control signal to
2 to 10 VDC.
Feedback Signal
2 to 10 VDC
Position
Feedback VDC
Control Signal
2-10 VDC or 4 to 20 mA
Position
Feedback VDC
†
Actuator Wire Number Color
TF24-MFT US 5 Org
LF24-MFT US 5 Wht
†
†
†
5
5
5
5
W228_A_11
WARNING
Live Electrical Components!
During installation, testing, servicing and troubleshooting of this
product, it may be necessary to work with live electrical
components. Have a qualified licensed electrician or other
individual who has been properly trained in handling live electrical
components perform these tasks. Failure to follow all electrical
safety precautions when exposed to live electrical components
could result in death or serious injury.
Refer to page 26 for auxiliary switch (-S models) wiring.
(42 strony)
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