Siemens SQS65.5U User Guide

573

4

SQS35.50, SQS35.53, SQS65.5 with spring return function, without manual adjuster

Electromotoric Actuators

for valves with 5.5 mm stroke

• SQS35… operating voltage AC 230 V, 3-position control signal

• SQS85… operating voltage AC 24 V, 3-position control signal

• SQS65… operating voltage AC 24 V, DC 0…10 V, DC 2…10 V or 0…1000 Ω

• Positioning force 400 N

• Direct mounting on valves; no adjustments required

• Optional auxiliary switch for extra functions with SQS35.00, SQS35.03,

SQS85.00, SQS85.03

• With or without spring return function to DIN 32730

• Position indication

• Manual adjuster on actuators without spring return function

SQS35.00, SQS35.03, SQS65, SQS65.2, SQS85.00, SQS85.03 without spring return function, with manual adjuster

SQS35… SQS85… SQS65…

control signal

Use

CE1N4573en

09.09.2008

For operation of Siemens valves VVG44..., VVG55... and VXG44.... with 5.5 mm stroke

for water-side control of hot water and cooling water in heating, ventilation and air conditioning systems.

In conjunction with the ASK30 mounting kit, the former Landis & Gyr-valves with 4 mm

or 5.5 mm stroke can also be operated: X3i..., VVG45..., VXG45..., VXG46..., VVI51....

Building Technologies

HVAC Products

Type summary

Accessories

Order

Delivery

Example:

Type reference

SQS35.00 150 s SQS35.03 35 s SQS35.50 150 s

SQS35.53 SQS65.5 Yes 8 s SQS65

SQS65.2 DC 2…10 V

SQS85.00 150 s

SQS85.03

Operating

voltage

AC 230 V 3-position

AC 24 V

Positioning signal Positioning

DC 0…10 V

0…1000 Ω

3-position

time

35 s

Spring return

function

No

Yes 8 s

No

Spring

return time

Type reference Description For actuators Space for ASC9.6

Auxiliary switch

Switching point adjustable from 0...100 % stroke

4573Z04

SQS35.00, SQS35.03 SQS85.00, SQS85.03

1 x ASC9.6

When ordering, please give the quantity, product name, type reference, and any accessories required.

20 actuators SQS35.00 and 20 auxiliary switch ASC9.6

Actuators, valves and accessories are supplied in separate packages.

Equipment combinations

Type reference DN PN class kvs [m3/h] Datasheet SQS35… SQS65… SQS85…

Function / mechanical design

The reversible synchronous motor is driven by a 3-position or a proportional

DC 0...10 V, DC 2...10 V or 0…1000 Ω control signal. The stroke is generated via an

antilocking gear train.

Design

Terminal strip, auxiliary switch

VVG44... N4364 VXG44… VVG55… 15...25 PN 25 0.25…6.3 N4379

4573Z03

15...40 PN 16 0.25…25

1

1 Manual adjuster

2

(SQS35.00, SQS35.03, SQS65, SQS65.2, SQS85.00, SQS85.03)

5

2 Position indication

4

3 Coupling nut for valve neck

4 Housing

5 Removable cover

3

G Y1 Y2 11 12L

N4464

9 9 9 9 9 9 9 9 9

SQS35...

1 Terminal strip 2 Auxiliary switch built-in as

standard in SQS35.50, SQS35.53

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Building Technologies Electromotoric Actuators CE1N4573en HVAC Products 09.09.2008

SQS85...

1 Terminal strip

SQS65...

1 Terminal strip 2 «lin» / «log» connection 3 R − M bridge

3-position control signal

SQS35.50, SQS35.53

Spring return function

SQS65…

DC 0/2…10 V or 0…1000 Ω control signal

SQS65.5

Spring return function

SQS65...

Selecting the flow characteristic

Position of S1

• Voltage at Y1: Stem extends, valve opens SQS35…, SQS85…

• Voltage at Y2: Stem retracts, valve closes

• No voltage at Y1 or Y2: Actuator holds the current position

In the event of an AC 230 V power failure on terminal 21, the actuator will return mechanically (return spring) to its 0 % stroke position within 8 seconds, closing the valve. The Y positioning signal is not valued.

• The valve opens / closes in proportion to the control signal at Y or R.

• At DC 0/2 V or 0 Ω the valve is closed (A → AB).

• When power supply is removed, the actuator maintains its current position.

In the event of a power failure, the actuator will return mechanically (return spring) to its 0 % stroke position within 8 seconds, closing the valve. The Y positioning signal is not valued.

Connector S1 (under the cover, on the printed circuit board) can be repositioned to change the flow characteristic of valves from «equal percentage» to «linear»; in all cases the flow characteristic relates to the through-port of the valve.

S1 connected to A and C:

equal-percentage flow characteristic

S1 connected to B and C:

linear flow characteristic

(factory setting)

Flow characteristic

Priority of signals

Features and benefits

S1

R - M

A C B

Ω

Volumetric flow rate

Control signal

Relationship between the DC 0…10 V, DC 2…10 V or 0…1000 Ω control signal and the volumetric flow rate

Control signals: Y = DC 0...10 V or DC 2...10V R = 0...1000 Ω; cut through R − M bridge

Flow characteristic log = Equal-percentage valve characteristic (factory setting) lin = Linear valve characteristic

Flow range k = Volumetric flow 100%

&

V100

k = Volumetric flow 0 %

&

V0

C B

4573Z02

Positioning signal Y DC 0/2…10 V DC 0/2…10 V Signal R Position / stroke The Y positioning

signal is valued.

Position feedback U DC 0…10 V DC 0…10 V DC 0…10 V

1)

Use with 0…1000 Ω signal indicator, e.g. frost protection. For details see connection diagram

0…1000 Ω

The R signal is valued.

1)

0…1000 Ω 1)

Signal addition Y and R

• Electromotoric actuator, maintenance-free

• Reversible synchronous motor

• Antilocking gear train

• Load-dependent switch-off in stroke limit positions

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Building Technologies Electromotoric Actuators CE1N4573en HVAC Products 09.09.2008

Engineering notes

The actuators must be electrically connected in accordance with local regulations and the connection diagrams.

Caution

SQS65…

Mounting notes

Overview Mounting Instructions

Orientation

Safety regulations and restrictions designed to ensure the safety of people and property must be observed at all times.

With the SQS65… actuators, the connector used to select the flow characteristic must be set to «lin» for valve types VVG55...

Admissible temperatures refer to «Technical data» If an auxiliary switch is required, its switching point should be indicated on the plant schematic.

Mounting Instructions are enclosed in the product packaging.

Type reference Mounting Instructions Type reference Mounting Instructions

SQS35… SQS65.5 M4573.3 SQS85…

ASC9.6 G4573.1 SQS65.2 M4573.5

M4573.7

SQS65 M4573.4

90°

4362Z01

Commissioning notes

When commissioning the system, check wiring and the functions. In addition, select or check the auxiliary switch settings.

Manual adjuster

Switching off the positioning signal. The valve can be fully closed (= 0 % stroke) by turning the manual adjuster counterclockwise. Control is automatically resumed when the positioning signal returns.

3-position control Every actuator must be driven by a dedicated controller (refer to «Connection

diagrams»).

Maintenance notes

The actuators are maintenance-free.

When servicing the actuator:

• Switch off pump and power supply

• Close the main shutoff valve in the pipework

• Release pressure in the pipes and allow them to cool down completely

• If necessary, disconnect electrical connections from the terminals

The actuator must be correctly fitted to the valve before recommissioning.

Repair

The actuator can not be repaired. It has to be replaced as a complete unit.

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Building Technologies Electromotoric Actuators CE1N4573en HVAC Products 09.09.2008

Disposal

Warranty

Technical data

The device contains electrical and electronic components and must not be disposed of together with domestic waste. This applies in particular to the PCB.

Legislation may demand special handling of certain components, or it may be sensible from an ecological point of view.

Current local legislation must be observed.

The technical data relating to specific applications are valid only in conjunction with the valves listed in this Data Sheet under «Equipment combinations».

The use of the actuators in conjunction with third-party valves invalidates all claims under Siemens Switzerland Ltd / HVAC Products warranty.

SQS35.00

SQS35.03

SQS35.50 SQS35.53

SQS85.00 SQS85.03

SQS65

SQS65.2, SQS65.5

Power supply Operating voltage AC 230 V ± 15 % AC 24 V ± 20 % Frequency 50 Hz 50 Hz 1)

Power consumption

SQS35.00:

2.5 VA

SQS35.03:

3.5 VA

End switches

switching capacity, terminals 11 or 12

AC 250 V,

6 A res.

2.5 A ind.

SQS35.50:

5 VA

SQS35.53:

6 VA

2 VA

AC 250 V,

6 A res.

2.5 A ind.

SQS65, SQS65.2:

4.5 VA

SQS65.5:

7 VA

Signal inputs Terminals Y1, Y2 3-position Terminal Y

SQS65, SQS65.5:

DC 0…10 V, max. 0.1 mA

SQS65.2: DC 2…10 V, max. 0.1 mA

Terminal R 0…1000 Ω Signal output Terminal U DC 0...10 V,

max. 0.5 mA

Parallel operation of

not possible max. 10

actuators

Operating data Positioning time in

control mode for opening / closing

SQS35.00:

150 s

SQS35.03:

35 s

Positioning time with

spring return

8 s for closing

SQS35.50:

150 s

SQS35.53:

35 s

SQS85.00:

150 s

SQS85.03:

35 s

SQS65.5: 8 s for

closing Positioning force 400 N Nominal stroke 5.5 mm Admissible

temperature

of medium in the valve

1…130 °C (short-time up to 150 °C)

Electrical connections Cable entry 2 openings ∅20.5 mm (for M20)

Norms and standards CE-conformity

EMC-directive

Immunity EN 61000-6-2 Industrial

2004/108/EC

2)

EN 61000-6-1

Residential

Low voltage directive 2006/95/EC

Emission EN 61000-6-3 Residential

Electrical safety EN 60730-1

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Building Technologies Electromotoric Actuators CE1N4573en HVAC Products 09.09.2008

SQS35.00

SQS35.03

Housing protection

standard

IP54 to EN 60529

SQS35.50 SQS35.53

SQS85.00 SQS85.03

SQS65

SQS65.2, SQS65.5

Upright to horizontal

Environmental

compatibility

ISO 14001 (Environment) ISO 9001 (Quality) SN 36350 (Environmentally compatible products) RL 2002/95/EG (RoHS)

Dimensions / Weight Dimensions refer to «Dimensions» Weight with

packaging

0.6 kg 0.7 kg 0.6 kg 0.6 kg SQS65.5: 0,7 kg

Materials Actuator housing Plastics Housing cover and

Plastics

manual adjuster

Gear train and stem

Plastics

with coupling

Accessories Auxiliary switch

ASC9.6 switching capacity

1)

For applications at 60 Hz use SQS65…U resp. SQS85…U actuators.

2)

Transformer 160 VA (e.g. Siemens 4AM 3842-4TN00-0EA0) for AC 24 V actuators

General

Operation

environmental conditions

AC 250 V, 3 A resistive 3 A inductive

AC 250 V,

EN 60721-3-3

3 A resistive 3 A inductive

Transport EN 60721-3-2

Storage EN 60721-3-1

Environmental conditions Class 3K5 Class 2K3 Class 1K3 Temperature –5...+50 °C –25...+70 °C –5...+50 °C

Humidity

5...95 % r.h. < 95 % r.h. 5...95 % r.h.

Internal diagrams

SQS35…

SQS85...

Y1 3Y2

100%

0%

M

∼

Cm1 Cm 2 c1

11 12NL45

4573G01

SQS35.00, SQS35.03

AC 230 V, 3-position, without spring return function

Cm1 End switch 100 % stroke Cm2 End switch 0 % stroke c1 ASC9.6 auxiliary switch can be fitted L Potential-free auxiliary terminal

Y1 3Y2

100%

0%

M

∼

Cm1 Cm2 c1

11 12GL45

90190

21 Y1 Y2 H4

100%

n

Cm1 Cm2

0%

M

∼

NM

max. 50% 0%

c2

SQS35.50, SQS35.53

AC 230 V, 3-position, with spring return function

c2 Built-in auxiliary switch with fixed preset

minimum flow limit control (factory-fitted)

21 Spring return function

SQS85.00, SQS85.03

AC 24 V, 3-pos. without spring return function

Cm1 End switch 100 % stroke Cm2 End switch 0 % stroke c1 ASC9.6 auxiliary switch can be fitted L Potential-free auxiliary terminal

4573G02

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Building Technologies Electromotoric Actuators CE1N4573en HVAC Products 09.09.2008

Connection diagrams

V

SQS35…

SQS85…

L

(L)

Q1

Q2

(N)

(Y1) (Y2)

Y1

AC 230 V

N

Y2

N

N1

Y1

N1, N2 Controller Y1 Actuator SQS35.00, SQS35.03 Y2 Actuator SQS35.50, SQS35.53 L System potential AC 230 V

SP

(G)

Q1 Q2

(Y1)

(G0)

(Y2)

N1

(N)

(G)

(G0)

(L)

Q1

Q2

(Y1) (Y2)

Y1

Y2

N

11

N2

N System neutral Q1, Q2 Controller contacts F1 Maximum limiter

(spring return function)

4505A02

Q1 Q2

(Y1)

(Y2)

N2

4573A01

13

12

F1

21

Y2

SQS65…

Note

SN

AC 24 V

Y2Y1

G

Y1

Y2Y1

G

Y2

N1, N2 Controller Y1, Y2 Actuator

SP System potential AC 24 V

SN System neutral Q1, Q2 Controller contacts

SP

Y...

N1

RM MR

R1

F1

ϑ

1 32

P1F2

24

DC 0/2...10 V

0...1000 Ω

GG0YR

M

U

Y1

SN

4573A07

N1 Controller Y1 Actuator R1 Signal indicator with 0…1000 Ω output F1 Frost protection monitor with 0…1000 Ω output F2 Frost protection thermostat

Terminal: 1 – 3 frost hazard / sensor is interrupted (thermostat closes with frost) 1 – 2 Normal operation

P1 Position indicator DC 0…10 V SP System potential AC 24 V SN System neutral

If a device is connected to terminal R, the factory-fitted bridge across R – M on the printed circuit board must be cut through.

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Building Technologies Electromotoric Actuators CE1N4573en HVAC Products 09.09.2008

Connection terminals

n

SQS65…

Dimensions

U

Position indicator DC 0…10 V

M

Measuring neutral (= G0)

R

Signal input 0…1000 Ω

Y

Signal input DC 0…10 V (SQS65.2: DC 2…10 V)

Operating voltage AC 24 V: system potential SP

G

Operating voltage AC 24 V: system potential SN

G

0

4573Z06

Dimensions in mm

134

120

128

60 68

80

4579M01

111*

28 88

G¾"

Height of actuator after fitting on valve

*

> 100 mm Minimum clearance from wall or ceiling

> 200 mm for mounting, connection, operation, service etc

32

ø20.5 (M20)

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Building Technologies Electromotoric Actuators CE1N4573en HVAC Products 09.09.2008