Siemens Acvatix SSC31 User manual

CA1N4895en
2019-10-02
Smart Infrastructure
4
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
0t
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.
BA
B(Y, Y2)(Y, Y1) A
4895Z04
A
4895Z05
0
1
Position indicator in
position 1:
Valve OPEN
B
4895Z06
0
1
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
3
.
8
VA
1)
Fuse for incoming
cable (fa
st)
2 A
Control
Control signal
3
-
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)
2)
max. 10
Functional data
Running time for 5.5
mm stroke at 50 Hz
150 s
30 s
Capacitor charging time max. 180
s
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
s
crew terminals for max. 3 mm
2
connections
Terminal block color
green
grey
red
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
-
93

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Environmental compatibility The product environmental declaration CE1N4895en01
3)
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
-
3
-
3
Transport
EN 60
721
-
3
-
2
Storage
EN 60
721
-
3
-
1
Environmental conditions
class 3K
3
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
Y2
Y1
N
4895Z06
Control signal CLOSE (AC 230 V)
Control signal OPEN (AC 230 V)
Neutral
Y2
Y1
G
4864Z15
Control signal CLOSE (AC 24 V)
Control signal OPEN (AC 24 V)
System potential AC 24 V
G0
Y
G
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)
L
N
AC 230 V
N
Y2
Y1
2AF
N
(Y1) (Y2)
Q1 Q2
Y
N
Controller
Y
Actuator
L
System potential
AC 230 V
N
System neutral
Y1, Y2 Control signal OPEN,
CLOSE
Q1, Q2 Controller contacts
4864A02
(Y1)
(G)
(G0)
SP
SN
AC 24 V
G
Y2Y1
(Y2) N
Q1 Q2
2AF
Y
N
Controller
Y
Actuator
SP
, G
System potential AC 24 V
S
N
, G0
System neutral
Y1, Y2 Control signal OPEN,
CLOSE
Q1, Q2 Controller contacts
4864A03
(Y) N
Y
(G0)
G Y
G0
SP (+)
SN (-)
AC 24 V (DC 24 V)
(G)
2AF
N
Controller
Y
Actuator
SP G System potential
AC
/
DC
24 V
SN, G0
System neutral
Y Control signal
SSC31
SSC81
SSC61
SSC61.5

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Dimensions
All dimensions in mm
48
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
J
SSC61
J
SSC81
J
SSC
61.5
J
Issued by
Siemens Switzerland Ltd
Smart Infrastructure
Global Headquarters
Theilerstrasse 1a
6300 Zug
Switzerland
Tel. [phone]
www.siemens.com/buildingtechnologie
s
© Siemens Switzerland Ltd, 2004-2019
Technical specifications and availability subject to change without notice.