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Accessories
IRM-100
Input scaling module
KH8
Universal crankarm
KG10
Ball Joint
NSV24
Battery back-up module
P...
Feedback potentiometer
PTA-250
Pulse width modulation interface
SGA24
Min. and/or manual positioner in NEMA 4 housing
SGF24
Min. and/or man. positioner for flush panel mount
S1,S2
Auxiliary switch
Tool-06
8mm and 10 mm wrench
ZAD24
Digital position indication
ZDB-GM
Angle of rotation limiter (Series 2)
ZG-H2
Actuator operator handle
ZG-GM2
Crankarm adaptor kit
ZG-R01
500Ω resistor for 4 to 20 mA
ZG-100
Universal mounting bracket
ZG-101
Universal mounting bracket
ZG-102
Multiple actuator mounting bracket
ZG-103
Universal mounting bracket
ZG-104
Universal mounting bracket
ZS-100
Weather shield (metal)
ZS-150
Weather shield (polycarbonate)
ZS-260
Explosion-proof housing
ZS-300
NEMA 4X housing
NOTE: When using GM24-SR US actuators, use only
the accessories listed on this page.
Wiring diagrams
24 VAC Transformer
1
Line
Volts
2 to 10 VDC (–)
Control Signal (+)
1
Provide overload protection and disconnect as required.
Actuators may be connected in parallel. Power con-
2
sumption and input impedance must be observed.
0 to 10 VDC control of GM24-SR US
Proportional damper actuator, non-spring return, direct coupled,
1 Common
2 + Hot
3 Y Input,
2 to 10V
1
5 U Output
2 to 10V
A
2
B GM24-SR US
24 V for 2 to 10 VDC and 4 to 20 mA control signal.
GM24-SR US - Typical Specification:
Control damper actuators shall be electronic direct coupled
type which require no crankarm and linkage. Actuators shall
be UL listed and CSA certified, have a 2 year warranty, and
be manufactured under ISO 9001 International Quality Control
Standards. Actuators shall have reversing switch and gear
disengagement button on the cover. Actuators shall use a
brushless DC motor and be protected from overload at all
angles of rotation. Run time shall be constant and independ-
ent of torque. The actuator must provide proportional damper
control in response to a 2 to 10 VDC or, with the addition of a
500Ω resistor, a 4 to 20 mA control input from an electronic
controller or positioner. A 2 to 10 VDC feedback signal shall
be provided for position indication or master-slave applica-
tions. Actuators shall be as manufactured by Belimo.
Multiple actuators mounted to shaft
Model
Maximum quantity per shaft
GM24 US
GM24-SR US
24 VAC Transformer
1
Line
Volts
500Ω
(–)
0 to 20 mA
Control Signal (+)
(–)
2 to 10 VDC
Feedback Signal (+)
2
To other
actuators
1
Provide overload protection and disconnect as required.
Connect actuator common (wire 1) to negative (–) leg
2
of control circuits only.
Up to 4 actuators may be connected in parallel. With 4
3
actuators wired to one 500Ω resistor, a +2% shift of
control signal may be required. Power consumption
must be observed.
The 500Ω resistor converts the 4 to 20 mA control sig-
4
nal to 2 to 10 VDC.
5
Actuator may also be powered by 24 VDC.
4 to 20 mA control of GM24-SR US with 2 to 10 VDC feed-
back output.
GM24-SR US
2
2
1 Common
5
2 + Hot
Ω
3 Y Input,
2 to 10V
1
4
5 U Output
2 to 10V
3
A
B GM24-SR US
105
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