Belimo LMB24-SR User Manual

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
2
87
LMB
(
X
)
24-
S
R
(
-T
)
Proportional, Non-Sprin
g
Return, 24 V, for 2 to 10 VDC or 4 to 20 mA
T
orque min. 45 in-lb for control of damper surfaces up to 11 sq ft
.
Mode
l
s
LMB24-SR/LMX24-SR LMB24-SR.1 (bulk
)
LMB24-SR-T/LMX24-SR-T LMB24-SR-T.1 (bulk
)
Applicatio
n
F
or proportional modulation of dampers in HVAC systems. Actuator sizin
g
should be
d
one in accordance with the dam
p
er manufacturer’s s
p
ecifications.
T
he actuator is mounted directly to a damper shaft from 1
/
4” up to 5
/
8” in diameter
b
y means of its universal clamp. Shafts up to 3/4” diameter can be accommodated by
a
n accessor
y
clam
p
.
T
he actuator operates in response to a 2 to 10 VDC, or with the addition of
a
5
00
Ω
resistor, a 4 to 20 mA control in
p
ut from an electronic controller or
p
ositioner.
A
2 to 10 VDC feedback si
g
nal is provided for position indication or master-slave
a
pplications
.
Op
eratio
n
T
he actuator is not
p
rovided with and does not re
q
uire an
y
limit switches, but is
electronically protected a
g
ainst overload. The anti-rotation strap supplied with the
a
ctuator will prevent lateral movement.
T
he LMB series provides 95° o
f
rotation and a visual indicator indicates position o
f
the
a
ctuator.
Wh
en reac
hi
ng t
h
e
d
amper or actuator en
d
pos
i
t
i
on, t
h
e actuator
a
utomat
i
ca
ll
y stops.
Th
e
g
ears can
b
e manua
ll
y
di
sen
g
a
g
e
d
w
i
t
h
a
b
utton on t
h
e
a
c
t
ua
t
or cover.
T
he LMB24-SR… actuators use a sensorless brushless DC motor, which is controlled
b
y an Application
S
pecific Integrated
C
ircuit (A
S
I
C
). The A
S
I
C
monitors and controls
the actuator’s rotation and provides a digital rotation sensing (DRS) function to prevent
d
ama
g
e to the actuator in a stall condition. Power consumption is reduced in holdin
g
mode
.
A
dd-on auxiliary switches or
f
eedback potentiometers are easily
f
astened directly onto
the actuator body
f
or signaling and switching
f
unctions
.
Dimensions (Inches [mm])
1.85” [47] 2.34” [59.4]
2.6” [66]
4.57” [116]
3.47” [88]
3.7” [94]
0.86” [22]
2” [50.8]
1/4” to 3/4” [6 to 20]
5/16” to 3/4” [8 to 26]
To center of
mounting slot.
Technical Data LMB(X)24-SR(-T)
P
ower su
pply
24 VA
C
± 2
0%
50/60
H
z
24 VD
C
± 1
0%
P
ower consumptio
n
1.5 W (0.4 W)
Trans
f
ormer sizin
g
3 VA
(
Class 2 power source
)
E
lectrical connectio
n
3 ft, 18 GA plenum rated cabl
e
1
/
2” conduit connecto
r
protected NEMA 2 (IP54
)
3 ft [1m] 10 ft [3m] 16 ft [5m]
Overload protectio
n
electronic throu
g
hout 0 to 95° rotation
Operatin
g
ran
g
e
Y
2 to 10 VDC, 4 to 20 m
A
I
nput
i
mpe
d
anc
e
100
k
Ω
(
0.1 m
A)
, 500
Ω
F
eedback out
p
ut
U
2 to 10 VDC
(
max 0.5 mA
)
A
n
g
le o
f
rotatio
n
max. 95°, ad
j
ustable with mechanical stop
T
orqu
e
45
i
n-
lb
[
5
N
m
]
Direction o
f
rotatio
n
revers
ibl
e w
i
t
h
sw
i
tc
h
actuator will move
:
=CCW with decreasin
g
control si
g
nal
(
10 to 2V
)
=CW with decreasin
g
control si
g
nal
(
10 to 2V
)
P
osition indicatio
n
reflective visual indicator
(
snap-on
)
M
anua
l
overr
ide
externa
l
pus
h
b
utto
n
R
unn
i
ng t
i
m
e
95 seconds, constant independent o
f
loa
d
H
umidit
y
5 to 95% RH non condensin
g
(
EN 60730-1
)
A
m
bi
ent temperatur
e
-22°F to 122°F [-30°
C
to 50°
C
]
S
torage temperatur
e
-40°F to 176°F [-40°
C
to 80°
C
]
H
ous
i
n
g
NEMA
2,
IP
54,
UL
enc
l
osure type 2
H
ousing materia
l
U
L
9
4-
5
VA
A
gency
li
st
i
ngs
†
cULus acc. to UL 60730-1A
/
-2-14,
CAN/CSA E60730-1:02,
C
E acc. to 2004
/
108
/
EE
C
and 2006
/
95
/
E
C
Noise
le
v
el
<35
dB(A)
S
ervicin
g
m
a
int
e
n
a
n
ce
f
r
ee
Q
uality standar
d
I
SO
900
1
W
e
ight
1.7
lb
s
[
0.5
kg]
LMB(X)24-
S
R-T
Elec
tr
ical
co
nn
ec
t
ion
screw terminal
(
for 26 to 14
G
A wire
)
H
ous
i
n
g
unprotected
(
NEMA 1
/
IP20
)
protected (NEMA 2
/
IP20) use Z
S
-T
† Rated Impulse Volta
g
e 800V, Type of action 1, Control Pollution De
g
ree 3
.
M
40024 - 05/10 - Subject to change. © Belimo Aircontrols (USA), Inc.

Belimo LMB24-SR Specifications

General

Brand	Belimo
Model	LMB24-SR
Category	Controller
Language	English