Submittal Sheet

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
21
AFB24-MFT
,
AFB24-MFT-S
,
AFX24-MFT
,
AFX24-MFT-
S
Proportional, Sprin
g
Return, 24 V, Multi-Function Technolo
g
y
®
•
Torque m
i
n. 180
i
n-l
b
•
C
ontrol 2 to 10 VD
C
(
DEFAULT
)
•
Feedback 2 to 10 VD
C
(DEFAULT
)
A
pp
l
i
cat
i
o
n
F
or
p
ro
p
ortional modulation of dam
p
ers and control valves in HVA
C
s
y
stems. The
A
FB24-MFT, AFX24-MFT provides mechanical spring return operation
f
or reliable
f
ail-
s
a
f
e application.
D
efault/Configuratio
n
Default parameters for 2 to 10 VDC applications of the AFB24-MFT, AFX24-MFT
a
ctuator are assi
g
ned durin
g
manufacturin
g
. If required, custom versions of the
a
ctuator can
b
e or
d
ere
d
.
Th
e parameters note
d
i
n t
h
e
T
ec
h
n
i
ca
l
D
ata ta
bl
e are
va
ri
ab
l
e
.
T
hese parameters can be changed by three means:
•
Pre-set confi
g
urations from Belimo
•
Custom confi
g
urations from Belimo
•
C
onfi
g
urations set by the customer usin
g
the MFT P
C
tool
(
version 3.4 or hi
g
her
)
s
oftware application
.
•
Handheld ZTH-GE
N
O
peratio
n
T
he AFB24-MFT, AFX24-MFT actuator provides 95° of rotation and is provided with a
g
raduated position indicator showin
g
0° to 95°. The actuator will synchronize the 0°
mechanical stop or the physical damper or valve mechanical stop and use this point
f
or its zero position durin
g
normal control operations. A unique manual override allows
the settin
g
o
f
any actuator position within its 95° o
f
rotation with no power applied.
T
his mechanism can be released physically by the use of a crank supplied with the
a
ctuator.
Wh
en power
i
s app
li
e
d
t
h
e manua
l
overr
id
e
i
s re
l
ease
d
an
d
t
h
e actuator
d
rives toward the
f
ail-sa
f
e position
.
T
he actuator uses a brushless D
C
motor which is controlled by an Application
S
pecific
I
nte
g
rated Circuit
(
ASIC
)
and a microprocessor. The microprocessor provides the
i
ntelligence to the A
S
I
C
to provide a constant rotation rate and to know the actuator’s
exact position. The ASIC monitors and controls the brushless DC motor’s rotation and
p
rovides a Di
g
ital Rotation Sensin
g
(
DRS
)
function to prevent dama
g
e to the actuator
i
n a stall condition. The position
f
eedback signal is generated without the need
f
or
mechanical feedback potentiometers usin
g
DRS. The actuator may be stalled
a
nywhere in its normal rotation without the need o
f
mechanical end switches
.
T
he AFB24-MFT, AFX24-MFT is mounted directly to control sha
f
ts up to 1.05" diameter
b
y means of its universal clamp and anti-rotation bracket. A crank arm and several
mountin
g
brackets are available
f
or damper applications where the actuator cannot be
d
irect coupled to the damper shaft. The sprin
g
return system provides minimum
s
pecified torque to the application during a power interruption. The AFB24-MFT,
A
FX24-MFT actuator is shipped at +5° (5°
f
rom
f
ull
f
ail-sa
f
e) to provide automatic
compression against damper gaskets
f
or tight shut-o
ff
.
N
O
TE: Please see documentat
i
on on Mult
i
-Funct
i
on Technolo
g
y.
Dimensions (Inches [mm])
AFBNFBDim
Technical Data AFB24-MFT, AFB24-MFT-S,
AFX24-MFT, AFX24-MFT-S
P
ower supp
ly
24 VA
C
, +
/
- 20%, 50
/
60 H
z
24 VD
C,
+20%
/
-10
%
P
owe
r
running
7
.5 W
c
onsumpt
i
on
h
o
ldi
n
g
3
W
T
ransformer sizin
g
1
0 VA
(
Class 2 power source
)
El
ectr
i
ca
l
connect
i
o
n
A
FB..
.
3
ft, 18 GA appliance cable, 1/2" conduit connecto
r
-
S
models
:
two 3 ft, 18 gauge appliance cables with
1/
2” conduit connectors
AFX
..
.
3
ft
[
1m
]
, 10 ft
[
3m
]
or 16 ft
[
5m
]
18 GA appliance or
p
lenum cables, with or without 1
/
2” conduit connector
-S models
:
two
3
f
t
[
1m
]
, 10
f
t
[
3m
]
or
1
6 ft
[
5m
]
appliance cables with or without 1/2" conduit
connec
t
or
s
O
verload
p
rotectio
n
e
lectronic throughout 0 to 95° rotation
Operating range Y* 2 to 10 VDC, 4 to 20 mA (default
)
variable (VDC, PWM, floating point, on/off)
I
n
p
ut im
p
edanc
e
1
00
k
Ω
for 2 to 10 VDC
(
0.1 mA
)
5
00
Ω
for 4 to 20 mA
1500
Ω
for PWM, floating point and on
/
off contro
l
F
eedback output U* 2 to 10 VDC, 0.5 mA ma
x
T
orqu
e
mi
n
i
mum 180
i
n-
lb
(
20
N
m
)
Direction o
f
s
pr
i
n
g
r
eversible with cw/ccw mountin
g
rotation*
m
oto
r
r
eversible with built-in switch
M
echanica
l
an
g
le of rotation
*
95° (adjustable with mechanical end stop, 35° to 95°
)
R
unnin
g
time
s
prin
g
<20 sec @ -4°F to 122°F
[
-20° C to 50° C
]
;
<60 sec @ -22°F
[
-30° C
]
motor
*
1
50 seconds (default), variable (70 to 220 seconds
)
A
ngle of Rotation
ada
p
tatio
n
off (default
)
Override control
*
mi
n
p
os
i
t
i
on = 0%
m
id. position = 50
%
m
ax. position = 100
%
P
osition indicatio
n
visual indicator, 0° to 95
°
(
0°
i
s spr
i
ng return pos
i
t
i
on
)
M
anua
l
overr
id
e
5
mm
h
ex cran
k
(
³⁄
₁₆
"
All
en
)
, supp
li
e
d
H
umidity
m
ax. 95% RH, non-condensin
g
A
m
bi
ent temperatur
e
-
22 to 122° F
(
-30 to 50° C
)
S
tora
g
e temperatur
e
-
40 to 176° F
(
-40 to 80°
C)
H
ousin
g
NEMA 2, IP54, Enclosure T
yp
e
2
H
ousin
g
material zinc coated metal and plastic casin
g
N
o
i
se
l
eve
l
≤
40dB(A) motor
@
150 seconds, run time dependen
t
≤62
dB(A)
spr
i
ng return
A
gency listings
†
cULus acc. to UL60730-1A
/
-2-14,
C
AN
/CS
A E60730-
1
:02, CE acc. to 2004/108/EC & 2006/95/EC
Quality standard ISO 900
1
Servicin
g
ma
int
e
n
a
n
ce
fr
ee
W
eight 4.6 lbs. (1.9 kg), 4.9 lbs. (2 kg) with switc
h
* Variable when configured with MFT options
†
Rated Impulse Voltage 800V, Type of action 1.AA (1.AA.B for -
S
version),
C
ontrol Pollution Degree 3.
Pro
g
rammed for 70 sec motor run time. At 150 sec motor run time, transformer sizin
g
is 8.5 VA and power consumption is 6 W running / 3 W holding.
i
K7-2 (supplied)
1/2" Centered
(Default)
3/4" Centered
(Field Selectable)
1.05" Centered
(Field Selectable)
AFB24-MFT-S
,
AFX24-MFT-
S
A
uxiliar
y
switche
s
2 x
S
PDT 3A (0.5A)
@
250 VA
C
, UL approve
d
one set at +10°, one adjustable 10° to 90°
M40024 - 05/10 - Subject to change. © Belimo Aircontrols (USA), Inc
.