Belimo AFB Series - Page 21

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN
6
7
• Tor
q
ue m
i
n. 180
i
n-l
b
•
C
ontrol
f
ixed
,
0 to 135
Ω
input, or Honeywell series 90
(f
ixed
)
• Feedback 2 to 10 VD
C
(DEFAULT
)
A
pp
licatio
n
For
p
ro
p
ortional modulation of dam
p
ers and control valves in HVAC s
y
stems. The
A
FB24-MFT95 N4(H), AFX24-MFT95 N4 provides mechanical spring return operation
for reliable fail-safe application.
Default/Confi
g
uratio
n
Default
p
arameters for 0 to 135
Ω
Input applications of the AFB24-MFT95 N4(H) and
A
FX24-MFT95 N4 actuator are assi
g
ned durin
g
manufacturin
g
. If required, custom
versions of the actuator can be ordered. However the control input cannot be modified
via MFT PC tool software. The
p
arameters noted in the Technical Data table are variable.
Th
ese parameters can
b
e c
h
ange
d
b
y t
h
ree means
:
• Pre-set confi
g
urations from Belimo
• Custom confi
g
urations from Belimo
• Configurations set by the customer using the MFT PC tool (version 3.4 or higher)
software a
pp
lication
.
O
p
eratio
n
The AFB24-MFT95 N4
(
H
)
, AFX24-MFT95 N4 actuator provides 95° o
f
rotation and is
p
rov
id
e
d
w
i
t
h
a
g
ra
d
uate
d
pos
i
t
i
on
i
n
di
cator s
h
ow
i
n
g
0° to 95°.
Th
e actuator w
ill
sync
h
ron
i
ze t
h
e 0° mec
h
an
i
ca
l
stop or t
h
e p
h
ys
i
ca
l
d
amper or va
l
ve mec
h
an
i
ca
l
stop
a
nd use this point
f
or its zero position during normal control operations. A unique
manual override allows the settin
g
o
f
any actuator position within its 95° o
f
rotation
with no
p
ower a
pp
lied.This mechanism can be released
p
h
y
sicall
y
b
y
the use o
f
a
cran
k
supp
li
e
d
w
i
t
h
t
h
e actuator.
Wh
en power
i
s app
li
e
d
t
h
e manua
l
overr
id
e
i
s
r
eleased and the actuator drives toward the
f
ail-sa
f
e position.
The actuator uses a brushless DC motor which is controlled by an Application Specific
Integrated Circuit (ASIC) and a microprocessor. The microprocessor provides the
intelli
g
ence 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 Digital Rotation
S
ensing (DR
S
) function to prevent damage to the actuator
in a stall condition. The position
f
eedback si
g
nal is
g
enerated without the need
f
or
mechanical feedback potentiometers using DRS. The actuator may be stalled
a
n
y
where in its normal rotation without the need o
f
mechanical end switches.
The AFB24-MFT95 N4(H), AFX24-MFT95 N4 is mounted directly to control sha
f
ts up to
1.05” diameter b
y
means o
f
its universal clam
p
and anti-rotation bracket. A crank arm
a
nd several mounting brackets are available
f
or damper applications where the
a
ctuator cannot be direct coupled to the damper shaft. The sprin
g
return system
p
rovides minimum specified torque to the application durin
g
a power interruption.
Dimensions (inches [mm])
6.77” [172]
Clamp Congurations
1/2” Field Selectable 3/4” Centered 1.05” Centered
(Default) (Field Selectable)
12.99” [330]
6.45” [163.9]
0.39” [10]
0.92” [23.4]
3.62” [92.1]
9.37” [238] 1.12” [28.5]
3.36” [85.2]
3.5” [0.14]
0.81” [20.5]
1.17” [29.8] 0.79” [20]
D312_confi
g
Technical Data AFB24-MFT95 N4(H), AFX24-MFT95 N4
Power su
pp
l
y
24 VAC, +/- 20%, 50/60 H
z
24 VDC, +20% / -10%
P
o
w
e
r
consum
p
tio
n
runnin
g
7.
5
W
/
h
ea
t
e
r 2
5
W
holdin
g
3 W
Trans
f
ormer sizin
g
10 VA
(
Class 2 power source
)
/ heater 25 V
A
El
ectr
i
ca
l
connect
i
o
n
AFB24-MFT95 N
4
3 ft, 18
G
A plenum cable
,
with 1/2” conduit connector
heater
(
N4H
)
terminal block
,
26-16 G
A
AFX24-MFT
95
N4 3 ft
[
1m
]
, 18 GA plenum cable
,
with 1
/
2”
co
n
du
it
co
nn
ec
t
o
r
Overload
p
rotectio
n
electronic throu
g
hout 0 to 95° rotatio
n
Operatin
g
ran
g
e Y
0
t
o
135
Ω
Hone
y
well Electronic Series 90,
0 to 135
Ω
i
nput
Feedback output U
*
2 to 10 VDC, 0.5 mA ma
x
Torque
m
inimum 180 in-lb
(
20 Nm
)
Directio
n
o
f
rotation*
sprin
g
reversible with cw/ccw mountin
g
inside housin
g
mo
t
or reversible with built-in switch
M
echanical
an
g
le of rotation
*
95°
(
ad
j
ustable with mechanical end stop, 35° to 95°
)
Runnin
g
time
mo
t
o
r* 150 seconds
(
default
)
, variable
(
70 to 220 seconds
)
spr
i
n
g
<20 seconds
@
-4°F to 122°F [-20°
C
to 50°
C
]
;
<60 seconds @ -22°F [-30°C
]
s
pr
i
ng
(
w
i
t
h
h
eater
)
<20 seconds
@
-4°F to 122°F [-20°
C
to 50°
C
]
;
<60 seconds
@
-49°F
[
-45°
C]
An
g
le o
f
rotation
adaptation
o
ff
(
de
f
ault
)
Position indicatio
n
visual indicator
,
0° to 95
°
(
0°
i
s spr
i
ng return pos
i
t
i
on
)
Ma
n
ua
l
o
v
e
rri
de
5 mm hex crank
(
³⁄
₁₆" Allen
)
, supplied
H
um
idi
ty
m
ax. 95%
RH
non-con
d
ens
i
n
g
A
m
bi
ent temperatur
e
-22°F to 122° F
[
-30°C to 50°C
]
wi
t
h
hea
t
e
r -49°F to 122°F [-45°
C
to 50°
C]
S
torage temperature -40°F to 176° F [-40°
C
to 80°
C]
H
ous
i
n
g
UL
Typ
e 4,
NEMA
4,
IP
66
Housin
g
material polycarbonate
N
o
i
se
l
e
v
el
≤
4
0dB
(
A
)
motor @ 150 seconds, run time dependen
t
≤
6
2
dB(A)
spr
i
n
g
return
Ag
ency
li
st
i
n
g
s † cULus acc. to UL60730-1A
/
-2-14
,
C
AN
/CS
A E60730
-
1:02
,
CE acc. to 2004/108/EC & 2006/95/EC
Q
uality standard I
SO
900
1
S
ervicing
m
aintenance
f
re
e
W
e
i
g
ht
9.7
lb
s.
(
4.4
k
g
)
; 10.5
lb
s
(
4.8
k
g
)
w
i
t
h
h
eater
*
Variable when con
f
igured with MFT options
† Rated Impulse Volta
g
e 800V, Type of action 1.AA
(
1.AA.B for -
S
version
)
,
C
ontrol Pollution De
g
ree 4.
Programmed for 70 seconds motor run time. At 150 sec motor run time, transformer sizing is 8.5 V
A
a
nd power consumption is 6 W runnin
g
/
3 W holdin
g.
AFB24-MFT95 N4(H), AFX24-MFT95 N4
N
EMA 4, Proportional, Sprin
g
Return, 24 V, for Use with Honeywell
®
Electronic Series 90 or a 0 to 135
Ω
I
n
p
u
t
N40103 - 09/11 - Subject to change. © Belimo Aircontrols (USA), Inc
.