Belimo NMB24-SR User manual

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
2
53
NMB
(
X
)
24-SR
(
-T
)
Proportional, Non-Sprin
g
Return, 24 V, for 2 to 10 VDC or 4 to 20 mA
Torque min. 90 in-lb
f
or control o
f
damper sur
f
aces up to 22 sq
f
t
.
A
pp
l
i
cat
i
o
n
F
or proportional modulation of dampers in HVAC systems. Actuator sizing should be
done in accordance with the damper manufacturer’s specifications.
The actuator is mounted directly to a damper sha
f
t up to 1.05" in diameter by means
of its universal clamp, 1/2” self centered default. A crank arm and several mounting
brackets are available for applications where the actuator cannot be direct coupled to
the dam
p
er shaft
.
The actuator o
p
erates in res
p
onse to a 2 to 10 VDC, or with the addition of
a
500
Ω
resistor, a 4 to 20 mA control in
p
ut from an electronic controller or
p
ositioner.
A 2 to 10 VDC feedback signal is provided for position indication or master-slave
app
li
cat
i
ons
.
O
p
eratio
n
The actuator is not provided with and does not require any limit switches, but is
electronically protected a
g
ainst overload. The anti-rotation strap supplied with the
actuator w
ill
p
revent
l
atera
l
movement
.
The NMB(X) series provides 95° of rotation and a visual indicator indicates position of
t
h
e actuator.
Wh
en reac
hi
ng t
h
e
d
amper or actuator en
d
pos
i
t
i
on, t
h
e actuator
automat
i
ca
ll
y stops.
Th
e gears can
b
e manua
ll
y
di
sengage
d
w
i
t
h
a
b
utton on t
h
e
ac
t
ua
t
or cover.
The NMB
(
X
)
24-SR… actuators use a sensorless brushless DC motor, which is
controlled by an Application
S
pecific Inte
g
rated
C
ircuit
(
A
S
I
C)
. The A
S
I
C
monitors and
controls the actuator’s rotation and provides a digital rotation sensing (DR
S
) function to
prevent
d
ama
g
e to t
h
e actuator
i
n a sta
ll
con
di
t
i
on.
P
ower consumpt
i
on
i
s re
d
uce
d
i
n
holdin
g
mode
.
Add-on auxiliar
y
switches or feedback
p
otentiometers are easil
y
fastened directl
y
onto
the actuator body
f
or si
g
nalin
g
and switchin
g
f
unctions
.
Dimensions (Inches [mm])
2.36” [60]
3.15” [80]
4.88” [124]
3.66” [93]
3.9” [99]
0.98”
[25]
2.42” [61.4]
2” [50.8]
1/2” to 1.05” [12.7 to 26.67]
2/5” to 1.05” [10 to 26.67]
To center of
mounting slot.
D
121
Technical Data NMB(X)24-SR(-T)
P
ower su
pp
l
y
24 VA
C
± 20% 50
/
60 H
z
24 VDC ± 10%
P
ower consumptio
n
2.5 W
(
0.4 W
)
T
rans
f
ormer sizin
g
5 VA
(
Class 2 power source
)
E
lectrical connectio
n
18 GA
p
lenum rated cabl
e
1
/
2” conduit connector
protected NEMA 2 (IP54
)
3
f
t [1m] 10
f
t [3m] 16
f
t [5m
]
O
verload protectio
n
electronic throu
g
hout 0 to 95° rotation
O
peratin
g
ran
g
e
Y
2 to 10 VDC, 4 to 20 m
A
I
nput impedance 1
00
k
Ω
(
0.1 mA
)
, 500
Ω
Angle of rotatio
n
max. 95°, adjustable with mechanical stop
T
or
q
u
e
90 in-lb
[
10 Nm
]
Direction o
f
rotatio
n
reversible with switc
h
actuator w
ill
move
:
=CCW with decreasin
g
control si
g
nal
(
10 to 2V
)
=CW with decreasing control signal (10 to 2V
)
P
osition indicatio
n
reflective visual indicator
(
snap-on
)
M
anual overrid
e
external push butto
n
R
unn
i
ng t
i
m
e
150 seconds 95 seconds 60 seconds 45 second
s
constant inde
p
endent of load
H
um
idi
ty 5 to 95%
RH
non con
d
ens
i
n
g
(EN
60730-1
)
A
m
bi
ent temperatur
e
-22°F to 122°F
[
-30°C to 50°C
]
S
torage temperature -40°F to 176°F [-40°
C
to 80°
C
]
H
ousin
g
NEMA 2, IP54, UL enclosure type 2
H
ous
i
n
g
mater
i
a
l
UL
94-5
VA
A
g
ency listin
g
s
†
cULus acc. to UL 60730-1A
/
-2-14,
C
AN
/CS
A E60730-1:02,
C
E
acc
. t
o
2
00
4
/
1
08/
EE
C
a
n
d
2
006/95/
E
C
N
oise leve
l
<45dB
(
A
)
Servicin
g
m
a
int
e
n
a
n
ce
f
r
ee
Q
ualit
y
standar
d
I
SO
900
1
W
ei
g
ht 1.7 lbs
[
0.75 k
g]
NMB
(
X
)
24-
S
R-
T
E
l
ec
tri
ca
l
co
nn
ec
ti
on
screw terminal
(
for 26 to 14 GA wire
)
unprotected (NEMA 1
/
IP20
)
†
Rated Impulse Voltage 800V, Type of action 1,
C
ontrol Pollution Degree 3
.
M
40024 - 05/10 - Subject to change. © Belimo Aircontrols (USA), Inc.

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
254
N
MB(X)24-SR(-T)
Proportional, Non-
S
prin
g
Return, 24 V,
f
or 2 to 10 VD
C
or 4 to 20 mA
Wiring Diagrams
1
P
rovide overload
p
rotection and disconnect as re
q
uired
.
2
C
AUTIO
N
E
quipment Damage
!
Actuators may be connected in parallel.
P
ower consumption and input impedance must be observed.
3
Actuators may also be powered by 24 VDC.
5
O
nly connect common to ne
g
.
(
–
)
le
g
of control circuits
.
The ZG-R01 500
Ω
resistor converts the 4 to 20 mA control signal t
o
2 to 10 VDC, u
p
to 2 actuators ma
y
be connected in
p
arallel
.
WARNING
Live Electrical Components!
G
During installation, testing, servicing and troubleshooting of this product, it may be
n
ecessary to work with live electrical components. Have a quali
fi
ed licensed electrician or other
i
ndividual who has been properly trained in handlin
g
live electrical components per
f
orm these
tasks. Failure to
f
ollow all electrical sa
f
ety precautions when exposed to live electrical compo-
n
ents cou
ld
resu
l
t
i
n
d
eat
h
or ser
i
ous
i
n
j
ury
.
W261
_
0
8
2 t
o
1
0
VD
C
co
ntr
o
l
W261
_
08
4
t
o
2
0
m
A
co
ntr
ol
Accessories
K
-
NA
Reversible
C
lamp
ZG-100
U
n
i
versa
l
M
ount
i
ng
B
rac
k
et
ZG-10
1
Universal Mounting Bracket
Z
G
-1
03
Universal Mounting Bracket
Z
G
-10
4
Universal Mounting Bracket
Z
G
-NMA Crank arm Ada
p
tor Kit
A
V
8
-2
5
U
niv
e
r
sa
l
S
h
a
ft Ext
e
n
s
i
o
n
Z
G
-NM
S
A-1
S
haft Adapto
r
ZS-T Terminal Cover for NEMA
2
Z
S
-100 Weather
S
hield -
S
tee
l
ZS-150 Weather Shield - Polycarbonate
T
oo
l
-06 8 mm
&
10 mm
W
renc
h
S
1A
,
S2A Auxiliary Switch
(
es
)
P
3
7
0
Shaft Mount Auxiliar
y
Switc
h
P…A Feedback Potentiometer
s
SG
A24
Mi
n pos
i
t
i
oners
i
n
NEMA
4
h
ous
i
n
g
S
GF2
4
Min positioners
f
or
f
lush panel mountin
g
PTA-250 Pulse Width Modulation Inter
f
ac
e
IRM
-100
I
nput
R
esca
li
n
g
M
o
d
u
l
e
A
D
S
-1
00
Analo
g
to Di
g
ital Switch
ZG-R0
1
Resistor for 4 to 20 mA Conversion
NSV24 US Batter
y
Back-U
p
Module
ZG-X40 Trans
f
orme
r
NO
TE
:
When using NMB(X)24-
S
R… actuators, only use accessories listed on this page
.
Typical Specification
Pro
p
ortional control dam
p
er actuators shall be electronic direct-cou
p
led t
yp
e, which
r
equire no crank arm and linka
g
e and be capable of direct mountin
g
to a shaft up
to 1.05” diameter. Actuators must
p
rovide
p
ro
p
ortional dam
p
er control in res
p
onse
to a 2 to 10 VD
C
or, with the addition of a 500
Ω
res
i
stor, a 4 to 20 m
A
contro
l
i
nput
from an electronic controller or positioner. Actuators shall have brushless DC motor
technology and be protected
f
rom overload at all angles o
f
rotation. Actuators shall
h
ave reversin
g
switch and manual override on the cover. If required, actuator will
b
e provided with screw terminal strip for electrical connections
(
NMX24-SR-T
)
. Run
time shall be constant and independent of torque. A 2 to 10 VDC feedback si
g
nal
shall be provided
f
or position indication. Actuators shall be cULus listed, have a
5-year warranty, and be manufactured under ISO 9001 International Quality Control
S
tandards. Actuators shall be as manufactured b
y
Belimo.
M40024 - 05/10 - Sub
j
ect to chan
g
e. © Belimo Aircontrols
(
USA
)
, Inc.