
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN
31
N40067 - 7/11 - Subject to change. © Belimo Aircontrols (USA), Inc.
Wiring for Damper Actuators and Control Valves
Proportional, 24V, 120V or 230V
Each actuator should be powered by a single, isolated
control transformer.
s0OWERSUPPLY#OM.EUTRALAND#ONTROL3IGNAL "–" wiring to a common is
prohibited.
Actuator: SY2…5-24MFT SY2...12-120MFT SY2...12-230MFT
/BSERVE#LASSAND#LASSWIRINGRESTRICTIONS
4RANSFORMERSIZING39ACTUATORDRAW8SAFETYMARGIN
%X39REQUIRES!X!!86!#6!4RANSFORMER
Indicates an action or condition that may cause irreversible
damage to the actuator(s) or associated equipment.
%QUIPMENTDAMAGE
0OWERCONSUMPTIONANDINPUTIMPEDANCEMUSTBEOBSERVED
CAUTION
Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury. It may also be used to
alert against unsafe practices.
7ARNINGSAND#AUTIONSAPPEARATAPPROPRIATESECTIONSTHROUGHOUT
this manual. Read these carefully.
Hazard Identification
33
INSTALLATION NOTES
Use of feedback is optional.
APPLICATION NOTES
34
36
Ground shielded wire at control panel chassis.
Tape back ground at actuator.
NOTES SY2...5-24MFT
NOTES SY2...12-120MFT (230MFT)
sCaution:0OWERSUPPLYVOLTAGE
SY2...5-24MFT
SY2...12-120MFT
(230MFT)
A
B
C
E
F
#ONTACT2ATING !6!#-AX
!6!#-AX
!"/PEN)NDICATION
LS4
LS3
!%#LOSED)NDICATION
ŏ
1
Y
U5
C1
2
C2
B
A
1
9
8
10
3
2
ŏ
/-
~/+
Internal Use Only
Internal Use Only
Internal Use Only
Not Used -
Control Signal
Not Used -
Internal Use Only
Internal Use Only
Internal Use Only
Internal Use Only
Power Supply Com
Power Supply Hot
24V AC/DC
Internal Use Only
Feedback
Control Signal (-)
Feedback Signal (+)
Feedback Signal (-)
33
Control Signal (+)
SYx-24MFT
Address
Adaption
PC Tool
Service Jack
G
PE
Y1Y2
34
36
Power Supply Com – 120v (N) / 230v (L1)
Power Supply Hot – 120v (H) / 230v (L2)
ŏ
1
Y
U5
C1
ŏ
2
C2
B
1
9
8
10
3
2
Internal Use Only
Internal Use Only
Internal Use Only
Not Used -
Control Signal
Not Used -
Internal Use Only
Internal Use Only
Internal Use Only
Internal Use Only
Internal Use Only
Feedback
Control Signal (-)
Feedback Signal (+)
Feedback Signal (-)
Control Signal (+)
SYx-230MFT
Address Adaption
PC Tool
Service Jack
SYx-120MFT
LN
G
PE
Y1
Y2
34
36
W547_2_11
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