Belimo TRANE TAF Series, Technical Documentation Manual, Page: 134 / 168

134
I20683 - Subject to change.
3 5/16 [84]
SQ
2 5/16 [59.5]
1 7/8 [48]
SQ
SGA24
Technical Data SGA24, SGF24
Power supply 24 VAC ± 20% 50/60 Hz 24 VDC ± 10%
Transformer sizing 1 VA
Control signal Y 0.5 to 10 VDC; 2 to 10 VDC (switchable)
Power output up to 10 actuators (1 mA max)
Degree of protection (SGA24 only NEMA 4 [1P54])
Connection Terminals (14 ga. wire max)
Humidity 5 to 95% RH non-condensing
SGF24
1/4 [6]
11/16 [27]
3/64 to 13/64 [1 to 5]
Panel thickness
Y = 0 to 10 VDC
SGA24
SGF24
Y = 2 to 10 VDC
SGA24
SGF24
1 Common
2
+
3
+
Y
…SR
1 Common
2
+
3
+
Y
4
+
Z
SGA24 SGF24
24 VAC Transformer
Line
Volts
1
2
2
1
3
2
Provide overload protection
and disconnect as required.
Override switches are optional.
A 500
Ω
resistor (ZG-R01) must be added
for 4 to 20 mA control.
A
B
1 Common
2
+
3
+
Y
…24-SR
1 Common
2
+
3
+
Y
4
+
SGA24 SGF24
24 VAC Transformer
Line
Volts
0 to 10 VDC
Control Signal
1
3
Override control
A B Damper control
off off 0%
off on 0%
on off 0 to 100%
on on 100%
Ω
(–)
(+)
500
Ω
Minimum Position Setting
SGA24, SGF24 Positioners
For Proportional Actuators with a Working Range of 0 to 10 VDC or 2 to 10 VDC
Application
These positioners are intended for the remote control of
modulating actuators or for use as a minimum positioner
(providing a minimum limit for the output signal from a
modulating controller). The control range is 0 to 100% of the
angle of rotation of the actuator.
Positioner SGA24 is for surface mounting with a NEMA 4
housing included. Positioner SGF24 is for flush mounting.
Operation
The positioner receives its supply voltage through terminals 1
and 2. A rotary knob is turned, producing a proportional control
signal (Y) at the output (terminal 3) of either 0.5 to 10 VDC
or 2 to 10 VDC and therefore a proportional change in the
position of the actuator between 0 and 100%. When used for a
minimum limit, the positioner works as a higher of 2 signal
selector. This function allows only the signal from the controller
or positioner, whichever is greater, to go to the actuator.
Function
The changeover from 2 to10 V to 0 to 10 V is selected by
means of a slide switch on the printed circuit board.
The angle of rotation of the knob can be limited mechanically,
by moving the adjustable stops under the knob.
Accessory
ZG-SGF Mounting plate for single gang wiring box
Wiring Diagram
Drilling Template for SGF24
(flush mount)
Changeover Switch
ø .136 [3.4]
# 29 drill
ø 1/4 [6.4]
1 7/8 [48]
SQ
1.10 [28]
SGA24 SGF24
Dimensions
[All numbers in brackets are in millimeters.]
W297