sy series actuators for butterfly valves

I NSTALLAT ION INSTRUCT IONS

SY Series Actuators forButterfl y Valves

7115

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800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA

2

Wire Size vs. Length of Run for SY Series Actuators

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SY1

SY2

SY3

SY4

SY5

Amps

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810

835

38

1231

017

217

256

60

1049

327

327

389

96

878

443

543

514

215

3

24 VAC

SY1

SY2

SY3

SY4

SY5

SY6

SY7

SY8

SY9

SY10

SY11

SY12

Amps

Amps

Amps

Amps

Amps

Amps

Amps

Amps

Amps

Amps

Amps

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wire

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60.

70.

72.

42.

32.

21.

72.

63.

44.

03.

03.

4

MAX

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1812

8711

0311

0332

233

635

145

429

722

719

325

722

7

1620

4217

5017

5051

153

355

772

147

136

030

640

836

0

1432

5327

8827

8881

384

988

711

4875

157

448

865

157

4

1251

6744

2944

2912

9213

4814

0918

2411

9291

277

510

3391

2

1082

1870

4470

4420

5421

4422

4129

0018

9614

5012

3316

4414

50

813

072

1120

511

205

3268

3410

3565

4614

3017

2307

1961

2614

2307

110 VAC

SY1

SY2

SY3

SY4

SY5

SY6

SY7

SY8

SY9

SY10

SY11

SY12

Amps

Amps

Amps

Amps

Amps

Amps

Amps

Amps

Amps

Amps

Amps

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11.

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1837

0137

0137

0113

4614

8013

4618

5110

5713

4610

5777

974

0

1658

7158

7158

7121

3523

4821

3539

3516

7721

3516

7712

3611

74

1493

5293

5293

5234

0137

4134

0146

7626

7234

0126

7219

6918

70

1214

854

1485

414

854

5402

5942

5402

7427

4244

5402

4244

3127

2971

1023

627

2362

723

627

8592

9451

8592

1181

367

5085

9267

5049

7447

25

837

583

3758

337

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615

033

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618

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1073

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17

220 VAC

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3

Butterfl y Valve Actuators

Power Supply 24 VAC/VDC Single Phase

Model TorqueSpeed

50 Hz/60 Hz

Current Draw

50 Hz

Current Draw

60 Hz

W

50 Hz

W

60 Hz

VA

50 Hz

VA

60 HzOverride Weight

SY1-24 310 in-lbs/ 35 Nm 20 seconds 1.6 A 1.7 A 30 29 38 41 8 mm Wrench Required 2.0 kg/4.9 lbs.

SY2-24 800 in-lbs/ 90 Nm 16 seconds 2.9 A 3.0 A 60 65 70 72 Hand Wheel 11 kg/24.5 lbs.




Power Supply 120 VAC Single Phase

Model TorqueSpeed

50 Hz

Speed

60 Hz

Current Draw

50 Hz

Current Draw

60 Hz

W

50 Hz

W

60 Hz

VA

50 Hz

VA


SY1-110 310 in-lbs/ 35 Nm 17 seconds 12 seconds 0.8 A 0.7 A 81 75 96 84 8 mm Wrench Required 2.0 kg/4.9 lbs.

SY2-110 800 in-lbs/ 90 Nm 19 seconds 16 seconds 1.7 A 1.1 A 185 130 204 132 Hand Wheel 11 kg/24.5 lbs.












Model TorqueSpeed

50 Hz

Speed

60 Hz

Current Draw

50 Hz

Current Draw

60 Hz

W

50 Hz

W

60 Hz

VA

50 Hz

VA


SY1-220 310 in-lbs/ 35 Nm 14 seconds 11 seconds 0.4 A 0.4 A 68 69 92 928mm Wrench

Required 2.0 kg/4.9 lbs.

SY2-220 800 in-lbs/ 90 Nm 19 seconds 15 seconds 0.7 A 0.5A 142 100 161 115 Hand Wheel 11 kg/24.5 lbs.











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4

Butterfl y Valve Actuators

Power Supply 24 VAC/VDC Single Phase

Model TorqueSpeed

50 Hz/60 Hz

Current Draw

50 Hz

Current Draw

60 Hz

W

50 Hz

W

60 Hz

VA

50 Hz

VA


SY1-24P 310 in-lbs/ 35 Nm 15 seconds 2.0 A 2.0 A 32 33 48 48 8 mm Wrench Required 2.0 kg/4.9 lbs.

SY2-24MFT 800 in-lbs/ 90 Nm 16 seconds 2.9 A 3.6 A 65 66 70 86 Hand Wheel 11 kg/24.5 lbs.





Model TorqueSpeed

50 Hz

Speed

60 Hz

Current Draw

50 Hz

Current Draw

60 Hz

W

50 Hz

W

60 Hz

VA

50 Hz

VA


SY1-110P 310 in-lbs/ 35 Nm 18 seconds 18 seconds 0.6 A 0.6 A 56 58 72 72 8mm Wrench Required 2.0 kg/4.9 lbs.

SY2-120MFT 800 in-lbs/ 90 Nm 14 seconds 15 seconds 0.8 A 0.7 A 81 76 96 84 Hand Wheel 11 kg/24.5 lbs.












Model TorqueSpeed

50 Hz

Speed

60 Hz

Current Draw

50 Hz

Current Draw

60 Hz

W

50 Hz

W

60 Hz

VA

50 Hz

VA


SY1-220P 310 in-lbs/ 35 Nm 16 seconds 16 seconds 0.4 A 0.4 A 64 62 92 928mm Wrench

Required 2.0 kg/4.9 lbs.












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5

D

A

BC A

A

A

B

B

BC

C

C

D

D

SY-1...

SY-9~12...

SY-7~8...

SY-2~6...

MODEL DIM A (MAX)Add to Dim A for

cover removal DIM B DIM C (MAX) DIM D

Inches [mm] Inches [mm] Inches [mm] Inches [mm] Inches [mm]

SY1 6.10 [155] 3.94 [100] 4.25 [108] 8mm -

SY2~3 10.04 [255] 7.48 [190] 7.87 [200] 12.99 [330] 7.87 [200]

SY4~6 12.40 [315] 8.86 [225] 9.21 [234] 14.96 [380] 11.81 [300]

SY7~8 16.54 [420] 8.86 [225] 9.21 [234] 17.72 [450] 13.39 [340]

SY9~12 23.23 [590] 8.86 [225] 10.24 [260] 18.50 [470] 13.78 [350]

Note: ~ indicates range of actuator i.e., SY2~3 = SY-2 and SY-3

SY... Series Non-Spring Return ActuatorDimensions

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6

Interface Wiring DetailSYx-MFT, 24V, 120/230V

INSTALLATION NOTES

CAUTION

Notes:

1. Motor CAMS have been factory calibrated and should not be moved.2. An adaption must be performed if any limit switch is adjusted. This will calibrate the

beginning and end stopping points. Press the adaption button for 3 seconds and release.

Actuators: SYx-MFT

Control Signal +

Control Signal -

FDBK +

FDBK -

Adaption

Direction of Rotation

PC Tool Service Jack Connection

24V

Power Supply Com -

Power Supply Hot +

Control Signal +

Control Signal -

FDBK +

FDBK -

Adaption


N

H

120/230V

PC Tool Service Jack

- Power Supply Common

- Power Supply Hot

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7

SYx-P Interface Wiring Detail

Potentiometer(Factory Pre-set)

For 2-position actuators with 1k feedback optionPotentiometer points 1, 2, 3 are wired to terminal blocks 8, 9,, 10.When a valve is closed: 8, 9 1k

9, 10 0kWhen a valve is opened: 8, 9 0k

9, 10 1k

For modulating actuators with 1k feedback option*Potentiometer points 1, 2, 3 are wired to terminal blocks 8, 9,, 10.When a valve is closed: 8, 9 1k

9, 10 0kWhen a valve is opened: 8, 9 0k

9, 10 1k

INPUT = 2-10 VDC

INPUT = 4-20mA

INPUT = 1-5 VDC

OUTPUT = 2-10 VDC

OUTPUT = 4-20mA

LOSS OF SIGNAL = STOP

RESPONSE = REVERSE

RESPONSE = DIRECT

LOSS OF SIGNAL = CLOSED(Direct Acting)

LOSS OF SIGNAL = OPEN(Reverse Acting)

LOSS OF SIGNAL = OPEN(Direct Acting)

LOSS OF SIGNAL = CLOSED(Reverse Acting)

ON

ON

OFF

ON

OFF

OFF

OFF

OFF

ON

ON ON

ON

OFF

OFF

OFF

OFF

ON

ON

OFF

ON

12345678

678 235 4 1

8 7 6 25 34 1

8 7 6 25 34 1

8 7 6 25 34 1

678 235 4 1

8 7 6 245 3 1

78 56 4 23 1

8 7 6 245 3 1

8 7 6 245 3 1

Notes:1.

Do not change sensitivity or dip switch settings with power applied!2.VR1 and VR2 are factory calibrated and should not be moved.3.Motor CAMS have been factory calibrated and should not be moved.

DipSwitchSettings

Sensitivity switchsettingis position #3 for factorydefault. ToTT widen dead-band, select a highernumber (up to 9).

NSupply

H- SIG+ IN

- FB+ OUT

Open LED

Closed LED

Sensitivity

VR2

VR1

Dip Switch

WARNING

*On modulatingactuators DO NOTmaster/rr slave usingoptional potentiometer.

INSTALLATION NOTES

CAUTION4.

Applicable to the SY1 and legacy SY2-12 actuators.

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8

SY… Series Non-Spring Actuators

LS2 Clockwise Decrease Closed Angle“CLOSE” Counter-clockwise Increase Closed Angle

LS1 Clockwise Increase Opening Angle“OPEN” Counter-clockwise Decrease Opening Angle

LS4Auxiliary Switch for Closed Indication

LS3Auxiliary Switch for Opened Indication

C

F

E

D

C

B

A

0° 5° 85° 90°

LS3 A - B A - C

0° 5° 85° 90°

LS4 D - F D - E

Switches at left are shown with actuator fully open.

LS3

LS4

LS1LS2

LS3

LS4

Factory pre-set see chart below. Field adjustable if required

LS4Auxiliary Switch for Closed Indication

LS3Auxiliary Switch for Opened Indication

Factory pre-set see chart below. Field adjustable if required

Factory pre-set and calibrated. Do not adjust without consulting factory. This willvoid the warranty

LS2 Clockwise Decrease Closed Angle“CLOSE” Counter-clockwise Increase Closed Angle

LS1 Clockwise Increase Opening Angle“OPEN” Counter-clockwise Decrease Opening Angle

Factory pre-set and calibrated. Do not adjust without consulting factory. This willvoid the warranty

LS4LS3LS2LS1

WARNING

Electrical Travel Adjustment (Factory Pre-set)SY-1

CAUTION

SY-2-12

Electrical Travel AdjustmentCAUTION

Notes:1. An adaption must be performed when the limit switches are adjusted. For the SYx-

MFT actuators. This will calibrate the beginning and end stopping points. Press the adaption button for 3 seconds and release.

2. Contact Technical Support if travel adjustment is required.CAUTION

INSTALLATION NOTES

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3

carcarjo

Highlight

87

carcarjo

Highlight

3

carcarjo

Highlight

87

carcarjo

Highlight

4-12


9

WiringOn/Off, 24V, 120/230V

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.

CAUTIONIndicates 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 INSTALLATION NOTES

NOTES SY1…5-24

Each actuator should be powered by a single, isolated control transformer.

using a common control signal input.

Required:

24 VAC Transformer

Line Volts

Open

Close

G Ground

1 Common

3 Open

4 Closed

5 Connect to #1 for fully open indication

6 Connect to #1 for fully

closed indication

7

G Ground

1 Common

3 Open

4 Closed

5 Connect to #1 for fully open indication

6 Connect to #1 for fully

closed indication

7 HTR

A

B

C

D

E

F

LS3

A-C (Open Indication)

LS4

D-F (Closed Indication)

Contact Rating: 5A 250 VAC Max.

SY2…5-24

120 and 230 VACG

Open

Close

G

N L1

H L2

HTR

A

B

C

D

E

F

LS3


LS4



SY2…12-110 (220)

NOTES SY1…12-110 (220)

Caution: Power Supply Voltage

using a common control signal input.

Required:

SY1-24

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)

SY1-110 (220)

A

B

C

E

F



LS4

LS3


SY1 Contact Arrangements

33

33

W54

6

Actuators: SY1-24 SY1-110 SY2...12-110 SY2...12-220

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4-12

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10

WiringProportional, 24V, 120/230V


"–" wiring to a common is prohibited. Terminals 4 and 6 need to be wired separately.


CAUTION

may result in minor or moderate injury. It may also be used to alert against unsafe practices.

this manual. Read these carefully.

Hazard Identification

33

33

INSTALLATION NOTES

Use of feedback is optional.

APPLICATION NOTES

36

34Ground shielded wire at control panel chassis. Tape back ground at actuator.

NOTES SY1…24P

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 (+)Feedback

Control signal

G

SY1-24P

A

B

C

E

F

LS4

LS3

G Ground

4 Power Supply Com

5 Power Supply Hot



8 Internal Use Only

9 Internal Use Only


11 Feedback (-)

12 Feedback (+)

120 and 230 VAC

N L1

H L2

SY1 -110P (220P)

A

B

C

E

F

LS4

LS3

NOTES SY1…110P (220P)

Caution: "–" wiring to a common is

prohibited. Terminals 4 and 6 need to be wired separately.

Control signal

Feedback

G

34

36

34

36

W54

7

Actuators: SY1-24P SY1-110P SY1-220P

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11

WiringProportional, 24V, 120/230V

W54

7-2

Actuators: SY2...5-24MFT SY2...12-120MFT SY2...12-230MFT


"–" wiring to a common is prohibited.



this manual. Read these carefully.


33

INSTALLATION NOTES


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)

Caution:

1

Y

U5

C1

2

C2

B

A

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

Power Supply Com

Power Supply Hot 24VAC

Internal Use Only

Feedback

Control Signal (-)

Feedback Signal (+)

Feedback Signal (-)

33

Control Signal (+)

SYx-24MFT

Address

Adaption

PC ToolService Jack

Y1Y2

3436

SY2...5-24MFT

SY2...12-120MFT(230MFT)

A

B

C

E

F

LS4

LS3

G PE

Power Supply Com – 120v (N) / 230v (L1)

Power Supply Hot – 120v (H) / 230v (L2)

1

Y

U5

C1

2

C2

B

A

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 ToolService Jack

SYx-120MFT

LN

G PE

Y1

Y2

3436

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4-12

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4-12

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4-5

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12

Wiring for Multiple SYOn/Off, 24V, 120/230V







Hazard Identification INSTALLATION NOTES

24 VAC Transformer

Line Volts

G Ground

1 Common

3 Open

4 Closed 5 6

7 HTR

A

B

C

D

E

F

LS3


LS4



SY2…5-24

G Ground

1 Common

3 Open

4 Closed

5

6

7 HTR

A

B

C

D

E

F

LS3


LS4



SY2…5-24

K1Open

Close K1-B

K1-A

Actuator A

Actuator B G Ground

1 Common

3 Open

4 Closed

5 6 7 HTR

A

B

C

D

E

F

LS3


LS4



G Ground

1 Common

3 Open

4 Closed

5

6

7 HTR

A

B

C

D

E

F

LS3


LS4



SY2…12-110 (220)

SY2…12-110 (220)

Open

Close K1-B

K1-A

Actuator A

Actuator B120 and 230 VAC

N L1

H L2

NOTES• Caution: Power Supply Voltage.• Isolation relays must be used in parallel connection of multiple actuators using a common control signal input.• "H" (L2) cannot be connected to terminal #3 and #4 simultaneously.• Required: Terminal #7 needs to be field wired to enable heater circuit.

SY1 -24

A

B

C

E

F



LS4

LS3


SY1-110 (220)

A

B

C

E

F



LS4

LS3


SY1 Contact Arrangements

G G

G

K1

G

Actuators: SY1...5-24 SY1...12-110 SY1...12-220

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4-5

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4-5

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4-12

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13

W55

0







Hazard Identification 33

33

INSTALLATION NOTES

24 VAC Transformer

Line Volts

G Ground

4 Power Supply Com

5 Power Supply Hot



8 Internal Use Only

9 Internal Use Only


11 Feedback (-)

12 Feedback (+)Feedback (B)

G Ground

4 Power Supply Com

5 Power Supply Hot



8 Internal Use Only

9 Internal Use Only


11 Feedback (-)

12 Feedback (+)

SY1 -24P

24 VAC Transformer

Line Volts

Feedback (A)Control Signal

Actuator B

Actuator A


APPLICATION NOTES

Recommended twisted shielded pair for control wiring. Ground shielded wire at control panel chassis. Tape back ground at actuator.

SY1 -24P

A

B

C

E

F



LS4

LS3


A

B

C

E

F



LS4

LS3


NOTES SY1-24P Each actuator should be powered by a single, isolated control transformer.

SY1-24P notes: Power supply Com/Neutral and Control Signal "–" wiring to a common is prohibited. Terminals 4 and 6 need to be wired separately otherwise irreversible damage will occur.

power applied.

G

G

35

36

33

35

36

35

36

Actuators: SY1-24P

Wiring for Multiple SYProportional, 24V

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14






A

B

C

D

E

F

LS3


LS4



SY2…5-24MFT



INSTALLATION NOTES


APPLICATION NOTES


NOTES SY2...5-24MFT Each actuator should be powered by a single, isolated control transformer.

┴1

Y

U5

C1

┴2

C2

B

A

1

9

8

10

3

2

┴/-

~/+

Internal Use Only

Internal Use Only

Internal Use Only

Not Used -

Not Used -

Internal Use Only

Internal Use Only

Internal Use Only

Internal Use Only

Power Supply Com


Internal Use Only

Feedback

Control Signal (-)

Feedback Signal (+)

Feedback Signal (-)

Control Signal (+)

SYx-24MFT

PC ToolService Jack

┴1

Y

U5

C1

┴2

C2

B

A

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

Power Supply Com


Internal Use Only

Feedback

Control Signal (-)

Feedback Signal (+)

Feedback Signal (-)

Control Signal (+)

SYx-24MFT

PC ToolService Jack

G PE

G PE

Actuator B

Actuator A

Address

Adaption

Y1 Y2

Address

Adaption

Y1 Y2

33

35

36

33

35

36

33

3536

Actuators: SY2...5-24MFT

WiringProportional, Multiple Wiring, 24V

W55

0-2

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Sticky Note

4-5

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Sticky Note

4-5

carcarjo

Sticky Note

4-5


15

W55

2-1





Hazard Identification G Ground

4 Power Supply Com

5 Power Supply Hot



8 Internal Use Only

9 Internal Use Only


11 Feedback (-)

12 Feedback (+)Feedback (B)

G Ground

4 Power Supply Com

5 Power Supply Hot



8 Internal Use Only

9 Internal Use Only


11 Feedback (-)

12 Feedback (+)Feedback (A)

Control Signal

Actuator B

Actuator A

120 and 230 VAC

N L1

H L2

SY1 -110P (220P)

A

B

C

E

F



LS4

LS3


SY1 -110P (220P)

A

B

C

E

F



LS4

LS3


NOTES SY1-110P (220P)Caution: Power supply voltage.

power applied.


APPLICATION NOTES



INSTALLATION NOTES

G

G

35

36

35

36

35

36

Wiring for Multiple SYProportional, 220V, 120/230V

Actuators: SY1-110P SY1-220P

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Cross-Out

carcarjo

Cross-Out

carcarjo

Cross-Out

carcarjo

Cross-Out


16

W55

2-2






A

B

C

D

E

F

LS3


LS4



SY2...12-120MFT

SY2...12-230MFT

NOTES SY2...12-120MFT (230MFT)Caution: Power supply voltage.


APPLICATION NOTES



INSTALLATION NOTES

Power Supply Com – 120V (N) / 230V (L1)

Power Supply Hot – 120V (H) / 230V (L2)

1

Y

U5

C1

2

C2

B

A

1

9

8

10

3

2

Internal Use Only

Internal Use Only

Internal Use Only

Not Used -

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 ToolService Jack

SYx-120MFT

LN

Power Supply Com – 120V (N) / 230V (L1)

Power Supply Hot – 120V (H) / 230V (L2)

1

Y

U5

C1

2

C2

B

A

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 ToolService Jack

SYx-120MFT

LN

G PE

G PE

Actuator A

Actuator B

Y1

Y2

Y1

Y2

35

36

35

36

36

35

Actuators: SY2...12-120MFT SY2...12-230MFT

Wiring for Multiple SYProportional, Multiple Wiring, 120/230V

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Sticky Note

4-12

carcarjo

Sticky Note

4-12

carcarjo

Sticky Note

4-12

carcarjo

Sticky Note

4-12 both


17

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Typical Retrofi t MountingSY2-SY12 Actuators

4X

4X

Note: Certain Belimo Factory assemblies use direct mount style linkages. Stem styles and mounting vary. For illustration purposes only.

carcarjo

Sticky Note

4-12


18

SY MFT ActuatorsQuick Troubleshooting Guide

Verify that Control Signal and Power are present at the actuator.• Measure between Control Signal + and – and power + and – on

control board. (See photo of control boards below for locations).• Check fuses on both boards. If fuses are blown, replace before

proceeding.

Verify that the green LED is lit on the control board – this indicates power is present.

If yes:• Push the button labelled “Adaption”, hold for 3-5 seconds then

release. (see left photo for 24V, right photo for 120V)• The LED next to green LED should light up (amber in color)• Actuator should click. Drive fully in one direction. It will stop there

for 5-10 seconds. Click and drive fully in the opposite direction.• The amber light should go out.

If the sequence does not happen as above, please have the tech make a note of what does happen.

Possibilities include• Amber light goes on, actuator clicks but does not move at all.• Amber light goes on, actuator clicks and drives in one direction, and

clicks but does not drive in the other direction.• Amber light does not light, and the actuator does nothing at all.

If something else occurs, please make a note and communicate to a Belimo Technical Support Representative as the actuator most likely will need to be replaced.

If the actuator adapts correctly:1. Verify correct wiring of control signal (confi rm correct polarity of

fi eld wiring and meter). Must have “Control +” and “Control –” andnot share the “Control –” with the 24V common, or 120V Neutral (4 wires are required, 2 for power and 2 for Control Signal).

2. Provide a DC control signal other than minimum or maximum (suggest 6 VDC or 50% command).

3. Measure with DC voltmeter on “Control +” and “Control –” at actuator and verify that a voltage other than 0(2) or 10V is present on those terminals. If actuator does not drive to approximately the mid position and voltage is present, the actuator most likely will need to be replaced.

The following information is helpful to determine warranty coverage and additional steps that might need to be taken:1. PO# or Belimo SO# or ID# (ID is located on actuator cover under

the model #).2. Is this a retrofi t or was it factory assembled to a valve?3. Has this actuator ever worked on this site (brand new install that

did not work, or has been working correctly for a certain period of time).

4. Proper transformer sizing (see PGPL for current VA requirements).5. Confi rm correct wire size vs. length or run for SY actuators.

Control Signal +

Control Signal -

FDBK +

FDBK -

Adaption


N

H

120/230V

PC Tool Service Jack

- Power Supply Common

- Power Supply Hot

Control Signal +

Control Signal -

FDBK +

FDBK -

Adaption


PC Tool Service Jack Connection

24V

Power Supply Com -

Power Supply Hot +

LED Location

LED Location

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Sticky Note

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Belimo Americas

USA, Latin America, and the Caribbean: www.belimo.us

Canada: www.belimo.ca

Brazil: www.belimo.com.br

Belimo Worldwide: www.belimo.com

sy series actuators for butterfly valves

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