SY Actuator Wiring Diagram, SY1…5-24P and SY1…12-110P (220P)
Observe Class 1 and Class 2 wiring restrictions
Transformer sizing = SY actuator draw X 1.25 (safety margin)
(Ex. SY2-24 requires 3.0A x 1.25 = 3.75A, 3.75A X 24 VAC = 90VA Transformer).
Indicates an action or condition that may cause irreversible
damage to the actuator(s) or associated equipment.
Equipment damage!
Power consumption and input impedance must be observed.
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.
Warnings and Cautions appear at appropriate sections throughout
this manual. Read these carefully.
Hazard Identification
1
1
INSTALLATION NOTES
W547
Use of feedback is optional.
APPLICATION NOTES
5
4
Ground shielded wire at control panel chassis.
Tape back ground at actuator.
NOTES SY1…24P
Each actuator should be powered by a single, isolated
control transformer.
• Power supply Com/Neutral and Control Signal "–" wiring to a common is
prohibited. Terminals 4 and 6 need to be wired separately.
• Do not change sensitivity or dip switch settings with power applied.
24 VAC Transformer
Line
Volts
G
Ground
4 Power Supply Com
5 Power Supply Hot
6 Control Signal (-)
7 Control Signal (+)
8 Internal Use Only
9 Internal Use Only
10 Internal Use Only
11 Feedback (-)
12 Feedback (+)
4
5
Feedback
Control signal
G
SY1-24P
A
B
C
E
F
Contact Rating: 5A 125 VAC Max.
3A 250 VAC Max.
A-B (Open Indication)
LS4
LS3
A-E (Closed Indication)
G
Ground
4 Power Supply Com
5 Power Supply Hot
6 Control Signal (-)
7 Control Signal (+)
8 Internal Use Only
9 Internal Use Only
10 Internal Use Only
11 Feedback (-)
12 Feedback (+)
120 and 230 VAC
N L1
H L2
SY1 -110P (220P)
A
B
C
E
F
Contact Rating: 5A 125 VAC Max.
3A 250 VAC Max.
A-B (Open Indication)
LS4
LS3
A-E (Closed Indication)
NOTES SY1…110P (220P)
•
Caution:
Power supply voltage.
• Power supply Com/Neutral and Control Signal "–" wiring to a common is
prohibited. Terminals 4 and 6 need to be wired separately.
• Do not change sensitivity or dip switch settings with power applied.
Control signal
5
4
Feedback
G
19
70103-00001D
-
03/08
-
Subject
to
change.
©
Belimo
Air
controls
(USA),
Inc.
Wiring for Damper Actuators and Control Valves
SY Actuator Wiring Diagram, SY1-24P, SY1-110P (220P)
W547