Siemens Acvatix SSC31 User manual

CA1N4895en

2019-10-02

Smart Infrastructure

895

Electromotoric actuators SSC31

SSC81

SSC61..

for valves VVP45.., VXP45.., VMP45..

·SSC31 operating voltage AC 230 V 3-position control signal

·SSC81 operating voltage AC 24 V 3-position control signal

·SSC61 operating voltage AC / DC 24 V DC 0…10 V control signal

·SSC61.5 same as SSC61, plus electrical fail-safe function

·Nominal force 300 N

·Automatic identification of valve stroke

·Direct mounting with coupling nut, no tools required

·Cable connection via screw terminals

·Manual override with indication of position and direction of travel

·Parallel connection of multiple actuators

Use

For operation of Siemens valves of the V..P45.. range for water-side control of hot and

cooling water in heating, ventilation and air conditioning systems.

In conjunction with the ASK30 mounting kit, the former Landis & Gyr valves VVG45..,

VXG45.. and X3i.. can also be operated.

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Type summary

Type reference Operating

voltage

Running time at

50 Hz

Positioning

signal

Remarks

SSC31 AC 230 V 150 s 3-position

SSC81 AC 24 V

SSC61 AC / DC 24 V 30 s DC 0...10 V

SSC61.5 With fail-safe function (30 s)

Type reference Description

ASK30 Mounting kit for use with former Landis & Gyr valves VVG45…, VXG45… and

X3i..

When ordering, please give quantity, product name and type reference.

2 actuators SSC81

The actuators, valves and accessories are packed separately.

Items are supplied individually packed.

Equipment combinations

Type

reference

Type of valve kvs

[m3/h]

PN class Data Sheet

VVP45.. 2-port valves 0.25...25

PN 16

N4845VXP45.. 3-port valves

VMP45.. 3-port valves with T-bypass 0.25...4

VVG45..1) 2-port valves 0.63...25 Retrofitting to

former Landis

& Gyr valves

VXG45..1) 3-port valves

X3i..1) 3-port valves 0.7...14

1) With ASK30 mounting kit

Function / mechanical design

When the actuator is driven by a 3-position or DC 0…10 V control signal, it generates a

stroke which is transmitted to the valve stem.

·Voltage at Y1: Actuator stem extends valve opens

·Voltage at Y2: Actuator stem retracts valve closes

·No voltage at Y1 or Y2: Actuator maintains the current position

·The valve opens / closes in proportion to the control signal at Y.

·At DC 0 V, the valve is fully closed (A ®AB).

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

When first connected to power, or

after a power failure, the capacitor

which stores energy for the fail-safe

function will be charged. This process

takes up to 180 seconds.

While the capacitor is being charged,

the actuator cannot respond to any Y

control signals.

max 180 s max

30 s

Charging

Calibration Discharge

4895Z01en

Stroke

[

]

100

60 s Normal

actuator

operation

On completion of the charging process and self-calibration (see below), the "Open" and

"Close" travel are proportional to the DC 0…10 V control signal.

In the event of a power failure of more than 5 seconds, the actuator will return

mechanically to its 0 % stroke position within 30 seconds, closing the valve

(A ®AB).

Standard versions

Accessories

Ordering

Example:

Delivery

3-position control

signal

SSC31 / SSC81

DC 0...10 V control

signal

SSC61

…

Electrical fail-safe

function

SSC61.5

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When the AC / DC 24 V supply is applied for the first time, the actuators calibrate

themselves independent of the control signal. In this process, the actuator drives the

valve to the mechanical end stops and stores the associated positions permanently in the

form of electronic values. The positioning signal is only active on completion of this

calibration process. Calibration takes about 60 seconds.

The SSC61.5 only performs self-calibration when the charging process is completed.

If the calibrated actuator is used with

some other valve (e.g. a replacement

valve), it must be recalibrated.

1. Unscrew screws

2. Remove cover

3. Connect the 2 contacts behind the

slot for about 1 second.

The calibration can only be made correctly if the actuator is fitted to a valve (refer to

«Equipment combinations», page 2).

·Plastic cover

·Position indication

·Locking-proof, maintenance-free gear train

·Manual adjustment with rotary knob

·Reduced power consumption in the holding positions

·Load-dependent switch-off in the event of overload and in stroke end positions

·Parallel operation of 10 SSC.. possible, provided the controllers’ output is sufficient

Accessories

Type ASK30

Mounting kit for Landis & Gyr valves VVG45…, VXG45… and

X3i..

Notes

The actuators must be electrically connected in accordance with local regulations (refer

to «Connection diagrams», page 7).

Regulations and requirements to ensure the safety of people and property must

be observed at all times!

The permissible temperatures must be observed (refer to «Technical data», page 5).

Mounting Instructions 74 319 0260 0 are enclosed with each pack.

Assembly is made with the coupling nut; no tools or adjustments are required. The

actuators should be installed so that they are initially in position 0 (also refer to «Manual

override», page 4).

Self-calibration

SSC61 and SSC61.5

Recalibration

Features and benefits

Mounting kit

Engineering

Caution

Mounting

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90°

4362Z01

90°

When commissioning the system, check wiring and the functions of the actuator.

Before testing the functioning of the SSC.., always check to ensure that the

actuator concerned is mounted on a valve (refer to «Equipment combinations»,

page 2).

Calibrating the SSC61 or SSC61.5 without a valve connected causes the actuator to

lock in position 1. To recalibrate (after mounting on a valve), disconnect power and

reset the stroke manually from position 1 to 0 (refer to «Recalibration», page 3).

The rotary knob can be used to drive the actuator into any position between 0 and 1. If a

control signal from the controller is present, this will take priority in determining the

position.

To retain the manually set position, unplug the connecting cable or switch off the rated

voltage and the control signal. Due to the reset function, the SSC61.5 will first travel to

position 0 and can then be driven manually to the required position.

B(Y, Y2)(Y, Y1) A

4895Z04

4895Z05

Position indicator in

position 1:

Valve OPEN

4895Z06

Position indicator in

position 0:

Valve CLOSED

After manual override with the rotary knob the positioning signal and the stroke

synchronize autonomously, if the positioning signal is once > 9.7 V or < 0.3 V.

When servicing the actuator:

·Switch off power

·If necessary, disconnect the terminals

·The actuator must only be commissioned with a correctly mounted valve in place!

The SSC.. actuators cannot be repaired. They must be replaced as a complete unit.

Orientation

Commissioning

Caution

Operation

Note

Manual override

Note SSC61…

Maintenance

Repair

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Disposal

The device is considered an electronics device for disposal in terms of

European Directive 2012/19/EU and may not be disposed of as

domestic garbage.

●Dispose of the device through channels provided for this

purpose.

●Comply with all local and currently applicable laws and

regulations.

Warranty

The technical relating to specific applications are valid only in conjunction with the

Siemens valves listed in this Data Sheet under «Equipment combinations», page 2.

The use of the SSC… actuators in conjunction with third-party valves invalidates

any warranty offered by Siemens Smart Infrastructure / HVAC Products.

Technical data

SSC31

SSC81

SSC61

SSC61.5

Power supply Rated voltage

Voltage tolerance

AC 230 V

± 15 %

AC 24 V

± 20 %

AC 24 V or DC 24 V

± 20 %

± 25 %

Rated frequency

50 / 60 Hz

Max. power consumption

6 VA

0.8 VA

2 VA

Fuse for incoming

cable (fa

st)

2 A

Control

Control signal

position

DC 0...10 V

Input impedance for DC 0...10 V

> 100 kOhm

Positioning accuracy for DC 0...10 V < 2 % of nominal

stroke

Parallel operation

(number of actuators)

max. 10

Functional data

Running time for 5.5

mm stroke at 50 Hz

150 s

30 s

Capacitor charging time max. 180

Fail

safe run time

30 s

Nominal stroke

5.5 mm

Nominal force

300 N

Permissible temperature of

medium in the connected valve

1...110 °C

Electrical

Terminal block

, pluggable

crew terminals for max. 3 mm

connections

Terminal block color

green

grey

red

Cable strain relief

for cables 4...11 mm dia.

Norms and

directives

Electromagnetic compatibility

(Application)

For residential, commercial and light- industrial environments

Product standard EN60730-x

EU Conformity (CE) A5W90000898 3) A5W90000900 3) A5W90000899 3)

RCM Conformity A5W90000923_A 3) A5W90000925_A 3) A5W90000924_A 3)

EAC Conformity Eurasia Conformity

Protection class to EN 60730 II III

Contamination level EN 60730, Class 2

Housing protection

Upright to horizontal IP40 to EN 60529

UL approbation UL 873

cUL approbation

C22.2 No. 24

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Environmental compatibility The product environmental declaration CE1N4895en01

contains data on environmentally compatible product design

and assessments (RoHS compliance, materials composition,

packaging, environmental benefit,

disposal).

Dimensions /

weight

Dimensions refer to «Dimensions», page 8

Coupling thread to valve

coupling nut G¾ inch

Weight

0.26 kg

0.25 kg

0.27 kg

Housing colors Base, rotary knob

Cover

RAL 7035, light-grey

RAL 5014, pigeon

blue

1) 7.5 VA for the first 180 s during power up (capacitor will be charged for automatic reset)

2) Provided the controllers’ output is sufficient

3) The documents can be downloaded from http://siemens.com/bt/download

General

ambient conditions

Operation

EN 60

721

Transport

EN 60

721

Storage

EN 60

721

Environmental conditions

class 3K

class 2K3

class 1K3

Temperature

+5...+50 °C

–

25...+70 °C

–

25...+70 °C

Humidity

(non

condensing)

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

Connection terminals

4895Z06

Control signal CLOSE (AC 230 V)

Control signal OPEN (AC 230 V)

Neutral

4864Z15

Control signal CLOSE (AC 24 V)

Control signal OPEN (AC 24 V)

System potential AC 24 V

4895Z21

Control signal DC 0...10 V

System potential AC 24 V (+ with DC 24 V)

System neutral (- with DC 24 V)

SSC31

SSC81

SSC61

SSC61.5

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Connection diagrams

4864A01

(L)

(N)

AC 230 V

2AF

(Y1) (Y2)

Q1 Q2

Controller

Actuator

System potential

AC 230 V

System neutral

Y1, Y2 Control signal OPEN,

Q1, Q2 Controller contacts

4864A02

(Y1)

(G)

(G0)

AC 24 V

Y2Y1

(Y2) N

Q1 Q2

2AF

Controller

Actuator

, G

System potential AC 24 V

, G0

System neutral

Y1, Y2 Control signal OPEN,

Q1, Q2 Controller contacts

4864A03

(Y) N

(G0)

G Y

SP (+)

SN (-)

AC 24 V (DC 24 V)

(G)

2AF

Controller

Actuator

SP G System potential

24 V

SN, G0

System neutral

Y Control signal

SSC31

SSC81

SSC61

SSC61.5

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Siemens Electromotoric actuators CA1N4895en

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Dimensions

All dimensions in mm

110.8

89.2

21.6

115.1

132.5

4895Z08

G¾

Revision numbers

Type reference

Valid from Rev.

No.

Type reference

Valid from Rev.

No.

SSC31

SSC61

SSC81

SSC

61.5

Issued by

Siemens Switzerland Ltd

Smart Infrastructure

Global Headquarters

Theilerstrasse 1a

6300 Zug

Switzerland

Tel. +41 58-724 24 24

www.siemens.com/buildingtechnologie

Technical specifications and availability subject to change without notice.

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