Data sheet Electro-hydraulic actuators for valves

Data sheet Electro-hydraulic actuators for valves
4
Electrohydraulic actuators
for valves
with a 40 mm stroke
566
SKC32..
SKC82..
SKC62..
SKC60
∂ SKC32.. Operating voltage AC 230 V, 3-position control signal
∂ SKC82.. Operating voltage AC 24 V, 3-position control signal
∂ SKC6.. Operating voltage AC 24 V, control signal DC 0…10 V, 4…20 mA or
0...1000 Ω
∂ SKC6.. Choice of flow characteristic, position feedback, stroke calibration,
LED status indication, override control
∂ SKC62UA with functions choice of direction of operation, stroke limit control,
sequence control with adjustable start point and operating range,
operation of frost protection monitors QAF21.. and QAF61..
∂ Positioning force 2800 N
∂ Actuator versions with or without spring-return function
∂ For direct mounting on valves; no adjustments required
∂ Manual adjuster and position indicator
∂ Optional functions with auxiliary switches, potentiometer and stem heater
∂ SKC..U are UL-approved
CM1N4566en
2017-05-03
Building Technologies
Use
For the operation of Siemens 2-port and 3-port valves, types VVF.. and VXF.. with a 40
mm stroke as control and safety shut-off valves in heating, ventilation and air
conditioning systems.
Types
Type
Standard electronics
Enhanced electronics
SKC32.60
AC 230 V
SKC32.61
SKC82.60
SKC82.60U *
SKC82.61
SKC82.61U *
AC 24 V
SKC62
SKC62U *
SKC60
SKC62UA *
1)
*
Accessories
Operating
voltage
Positioning
signal
Spring-return Positioning time Enhanced
Function Time Opening Closing functions
yes
18 s
3-position
DC 0...10 V,
4...20 mA,
or
0...1000 ς
120 s
yes
18 s
yes
20 s
120 s
20 s
yes
yes 1)
20 s
Direction of operation, stroke limit control, sequence control, signal addition
UL-approved versions
Type
ASC1.6
ASC9.3
ASZ7.3
ASZ7.31
ASZ7.32
ASZ6.6
Description
Auxiliary switch
Dual auxiliary switches
Potentiometer 1000 Ω
Potentiometer 135 Ω
Potentiometer 200 Ω
Stem heater AC 24 V
For actuator
SKC6..
SKC32..
SKC82..
SKC..
Mounting location
1 x ASC 1.6
1 x ASC9.3 and
1 x ASZ7.3 or
1 x ASZ7.31 or
1 x ASZ7.32
1 x ASZ6.6
Ordering
When ordering please specify the quantity, product name and type code.
Example: 1 actuator, type SKC32.60 and
1 potentiometer, 135 ς, type ASZ7.31
Delivery
The actuator, valve and accessories are supplied in separate packaging and not
assembled prior to delivery.
Spare parts
See overview, section «Replacement parts», page 18.
2/18
Siemens
Building Technologies
Electrohydraulic actuators for valves
CM1N4566en
2017-05-03
Equipment combinations
Valve type
DN
3
PN-class
kvs [m /h]
data sheet
Two-port valves VV... (control valves or safety shut-off valves)):
1)
Flange
100
6
124…160
4310
Flange
100
6
160
4401
Flange
100…150
10
124…315
4320
Flange
100…150
10
160…400
4402
Flange
100…150
16
124…315
4330
Flange
100…150
16
125…400
4403
Flange
65…150
16
49…300
4340
VVF45..
Flange
65…150
16
49…300
4345
VVF43..
Flange
65…150
16
50…400
4404
VVF53..
Flange
65…150
25
63…400
4405
VVF61...
Flange
65…150
40
49…300
4382
VVF21...
VVF22...
VVF31...
1)
VVF32...
VVF40...
1)
VVF42...
VVF41...
1)
Three-port valves VX... (control valves for «mixing» and« diverting»):
1)
Flange
100
6
124…160
4410
Flange
100
6
160
4401
Flange
100…150
10
124…315
4420
Flange
100…150
16
160…400
4402
Flange
100…150
16
124…315
4430
Flange
100…150
16
125…400
4403
Flange
65…150
16
49…300
4440
VXF43..
Flange
65…150
16
63…400
4404
VXF53..
Flange
65…150
25
63…400
4405
VXF61...
Flange
65…150
40
49…300
4482
VXF21...
VXF22...
VXF31...
1)
VXF32...
VXF40...
1)
VXF42...
VXF41...
1)
For admissible differential pressures Χpmax and closing pressures Χps, refer to the relevant
valve data sheets.
1)
Valves are phased-out
Note
Rev. no.
Third-party valves with strokes between 12…40 mm can be motorized, provided
they are «closed with the de-energized» fail-safe mechanism and provided that the
necessary mechanical coupling is available. For SKC32.. and SKC82.. actuators the Y1
signal must be routed via an additional freely-adjustable end switch (ASC9.3) to limit
the stroke.
We recommend that you contact your local Siemens office for the necessary
information.
Overview table, see page 18.
Principle of
electro-hydraulic
actuators
4567Z02
4567Z01
Technology
1
2
3
4
5
1
Manual adjuster
2
Pressure cylinder
6
3
Suction chamber
7
8
4
Return spring
9
10
5
Solenoid valve
11
6
Hydraulic pump
12
7
Piston
8
Pressure chamber
9
Position indicator (0 to 1)
10 Coupling
11 Valve stem
12 Plug
Valve closed
Valve open
3/18
Siemens
Building Technologies
Electrohydraulic actuators for valves
CM1N4566en
2017-05-03
Opening the valve
The hydraulic pump (6) forces oil from the suction chamber (3) to the pressure chamber
(8) and thereby moving the pressure cylinder (2) downwards. The valve stem (11)
retracts and the valve opens. Simultaneously the return spring (4) is compressed.
Closing the valve
Activating the solenoid valve (5) allows the oil in the pressure chamber to flow back into
the suction chamber. The compressed return spring moves the pressure cylinder
upwards. The valve stem extends and the valve closes
Manual operation mode
For manual operation, swing out the crank so that the display window becomes visible.
By rotating the crank or the manual adjustment knob, the display window shows the
engagement bar and/or the scale dial with stroke indication.
Turning the manual adjuster (1) clockwise moves the pressure cylinder downwards and
opens the valve. Simultaneously the return spring is compressed.
In the manual operation mode the control signals Y and Z can further open the valve
but cannot move to the «0%» stroke position of the valve. To retain the manually set
position, switch off the power supply or disconnect the control signals Y and Z. In the
display window the red indicator dial is visible.
Note: Controller in
manual operation
When setting the controller for a longer time period to manual operation, we
recommend adjusting the actuator with the manual adjuster to the desired position. This
guarantees that the actuator remains in this position for that time period. Attention: Do
not forget to switch back to automatic operation after the controller is set back to
automatic control.
Automatic mode
Turn the manual adjuster counterclockwise to the end stop. The pressure cylinder
moves upward to the «0%» stroke position of the valve. In the display window the red
scale disappears and the crank can be swing closed.
Minimal volumetric flow
The actuator can manually be adjusted to a stroke position > 0 % allowing its use in
applications requiring constantly a minimal volumetric flow.
Spring-return facility
The SKC32.61, SKC82.61.. and SKC62.. actuators, which feature a spring-return
function, incorporate a solenoid valve which opens if the control signal or power fails.
The return spring causes the actuator to move to the «0 %» stroke position and closes
the valve.
SKC32../SKC82..
3-position control signal
The actuator is controlled by a 3-position signal either via terminals Y1 or Y2 and
generates the desired stroke by means of above described principle of operation.
∂ Voltage on Y1
∂ Voltage on Y2
∂ No voltage on Y1 and Y2
SKC62.., SKC60
Y control signal
DC 0...10 V and/or
DC 4...20 mA, 0…1000 Ω
Frost protection monitor
Frost protection
thermostat
piston extends
valve opens
piston retracts
valve closes
piston / valve stem remain in the respective position
The valve is either controlled via terminal Y or override control Z. The positioning signal
Y generates the desired stroke by means of above described principle of operation.
∂
∂
∂
∂
Signal Y increasing:
Signal Y decreasing:
Signal Y constant:
Override control Z
piston extends
valve opens
piston retracts
valve closes
piston / valve stem remain in the respective position
see description of override control input, page 8
A frost protection thermostat can be connected to the SKC6.. actuator. The added
signals from the QAF21.. and QAF61.. require the use of SKC62UA actuators. Notes
on special programming of the electronics are described under «Enhanced electronics»
on page 5 «Connection diagrams» for operation with frost protection thermostat or frost
protection monitor refer to page 15.
4/18
Siemens
Building Technologies
Electrohydraulic actuators for valves
CM1N4566en
2017-05-03
4567Z03
Standard electronics
SKC62.., SKC60
Calib.
1
2
3
4
Z
Status
ok
0...10V
4...20mA
green
calib.
error
red
Positioning signal Y
Position feedback U
Flow characteristic
ON
ON
DC 4…20 mA
4567Z05
ON
12
12
ON
lin
= linear
ON
12
*) Factory setting:
All switches OFF
log = equal percentage
Relationship
between control
signal Y and
volumetric flow
V100
li n
12
l og
DC 0…10 V
4567Z06
OFF *)
4567Z07
DIL switches
SKC62.., SKC60
valve
jam
Status
4567Z08
Calib.
Connection terminals
Mode DIL switches
LED status indication
Slot for calibration
V0
0
4
10 V
20 mA
Enhanced electronics
SKC62UA
1
2
3
4
5
Calib.
Z
Status
ok
0...10V
4...20mA
green
calib.
error
red
Calib.
Status
valve
jam
6
DIL switches
SKC62UA
Direction of operation Sequence control
or stroke limit control
Connection terminals
DIL switches
LED status indication
Stroke calibration
Rotary switch Up
(factory setting 0)
Rotary switch Lo
Control signal Y
Flow characteristic
Position feedback U
Sequence control
ON
reverse-acting
Signal addition
DC 4...20 mA
lin = linear
QAF21../QAF61..
* Factory settings: all switches
OFF
Stroke limit control
log = equal
DC 0...10 V
Relationship
between control
signal Y and
volumetric flow
percentage
V100
l og
direct-acting
lin
OFF *
V0
0
4
10 V
20 mA
5/18
Siemens
Building Technologies
Electrohydraulic actuators for valves
CM1N4566en
2017-05-03
Selection of direction of
operation
SKC62UA
∂ With normally-closed valves, «direct-acting» means that with a signal input of 0 V,
the valve closes (applies to all Siemens valves listed under
«equipment combinations» on page 3)
∂ With normally-open valves, «direct-acting» means that with a signal input of 0 V, the
valve is open.
Direct acting
Reverse-acting
Input
g
DC 0...10 V
DC 4...20 mA
0...1000 ς
tin
0%
c
-a
Stroke limit control
and sequence control
SKC62UA
ct
i re
D
se
er
Y
100 %
(10 V)
Note
100 %
v
Re
Y
Input
Stroke
(10 V)
100 %
0%
0%
0V
4 mA
0ς
DC 10...0 V
DC 20...4 mA
1000...0 ς
10 V
20 mA
1000 ς
Y
The mechanical spring-return function is not affected by the direction of operation
selected.
Setting the stroke limit control
Setting the sequence control
The rotary switches LO and UP can be used
to apply an upper and lower limit to the stroke
in increments of 3%, up to a maximum of 45%
The rotary switches LO and UP can be used
to determine the starting point or the operating
range of a sequence.
Position
of LO
Lower stroke
limit
Position
of UP
Upper stroke
limit
Position
of LO
Starting point for
sequence control
Position
of UP
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0%
3%
6%
9%
12 %
15 %
18 %
21 %
24 %
27 %
30 %
33 %
36 %
39 %
42 %
45 %
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
100 %
97 %
94 %
91 %
88 %
85 %
82 %
79 %
76 %
73 %
70 %
67 %
64 %
61 %
58 %
55 %
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0V
1V
2V
3V
4V
5V
6V
7V
8V
9V
10 V
11 V
12 V
13 V
14 V
15 V
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
Operating range
of sequence
control
10 V
10 V *
10 V **
3 V ***
4V
5V
6V
7V
8V
9V
10 V
11 V
12 V
13 V
14 V
15 V
* Operating range of QAF21.. (see below)
** Operating range of QAF61.. (see below)
*** The smallest adjustment is 3 V; control with 0…30 V is only possible via Y.
Stroke control with
QAF21.. / QAF61..
signal addition
SKC62UA only
Setting the signal addition
Calib.
Lo Up
The operating range of the frost protection
monitor (QAF21.. or QAF61..) can be defined
with rotary switches LO and UP.
Position
of LO
0
0
Sequence control
start point
Position
of UP
1
QAF21../ QAF61..
operating range
QAF21..
2
QAF61..
6/18
Siemens
Building Technologies
Electrohydraulic actuators for valves
CM1N4566en
2017-05-03
Calibration
SKC62.., SKC60
In order to determine the stroke positions 0 % and 100 % in the valve, calibration is
required on initial commissioning:
Prerequisites
∂ Mechanical coupling of the actuator SKC6.. with a Siemens valve
∂
Actuator must be in «Automatic operation» enabling stroke calibration to
capture the effective 0 % and 100 % values
∂ AC 24 V power supply
∂ Housing cover removed
Calibration
01124
0%
1
3
2
100%
4567Z09
green LED flashes;
position feedback U
inactive
Stroke
1. Short-circuit contacts in calibration slot
(e.g. with a screwdriver)
2. Actuator moves to «0 %» stroke position (1)
(valve closed)
3. Actuator moves to «100 %» stroke position (2)
(valve open)
4. Measured values are stored
t
Normal operation
5. Actuator moves to the position (3) as
indicated by signals Y or Z
Indication of
operating state
SKC62.., SKC60
green LED is lit permanently;
position feedback U active, the values
correspond to the actual positions
A lit red LED indicates a calibration error.
The calibration can be repeated any number of times.
The LED status indication indicates operational status with dual-colored LED and is
visible with removed cover.
LED
Indication
Function
Remarks, troubleshooting
Green
Lit
Normal operation
Automatic operation; everything o.k.
Flashing
Calibration in progress
Wait until calibration is finished (LED stops
flashing, green or red LED will be lit)
Lit
Faulty stroke calibration
Check mounting
Restart stroke calibration (by short-circuiting
calibration slot)
Flashing
Internal error
Inner valve jammed
Replace electronics
Check valve
No power supply
Electronics faulty
Check mains network, check wiring
Replace electronics
Red
Both
Dark
As a general rule, the LED can assume only the states shown above (continuously red
or green, flashing red or green, or off).
7/18
Siemens
Building Technologies
Electrohydraulic actuators for valves
CM1N4566en
2017-05-03
Override control input can be operated in following different modes of operation
Override control
input Z
SKC62.., SKC60
Z-mode
fully open
closed
override with
0…1000 Ω
Signal addition
SKC62UA only
linear or equalpercentage
linear or equalpercentage
Transfer
Connections
no function
linear or equalpercentage
∂ Z-contact not
connected
∂ Valve stroke follows
Y-input
Note
∂ Z-contact connected ∂ Z-contact connected ∂ Z-contact connected ∂ Z-contact is
connected to R of
directly to G
directly to G0
to M via resistor R
the frost protection
∂ Y-input has no effect ∂ Y-input has no effect ∂ Starting position at
monitor QAF21.. or
50 Ω / end position
QAF61..
at 900 Ω
∂ Y-input has no effect ∂ Valve stroke follows
signals Y and R(Z)
Shown operation modes are based on the factory setting «direct acting»
Y-input has no effect in Z-mode.
Accessories
SKC..
∂ for media below 0 °C
∂ mount between valve and actuator
ASC9.3
ASZ7.3..
double auxiliary switch
potentiometer
4561Z05
SKC32.., SKC82..
ASZ6.6
stem heater
adjustable switching points
ASZ7.3:
0…1000 Ω
ASZ7.31:
0…135 Ω
ASZ7.32:
0…200 Ω
8/18
Siemens
Building Technologies
Electrohydraulic actuators for valves
CM1N4566en
2017-05-03
SKC62.., SKC60
ASC1.6
auxiliary switch
switching point 0…5 % stroke
See section «Technical data» on page 12 for more information.
Engineering notes
Conduct the electrical connections in accordance with local regulations on electrical
installations as well as the internal or connection diagrams.
Caution
Safety regulations and restrictions designed to ensure the safety of people and
property must be observed at all times!
Caution
For media below 0 °C the ASZ6.6 stem heater is required
to keep the valve from freezing. For safety reasons the
stem heater is designed for an operating voltage of
AC 24 V / 30 W.
For this case, do not insulate the actuator bracket and the
valve stem, as air circulation must be ensured. Do not
touch the hot parts without prior protective measures to
avoid burns.
Non-observance of the above may result in accidents and
fires!
Recommendation: Above 140 °C insulating the
valves is strictly recommended.
Observe admissible temperatures, refer to «Use» on page 2 and «Technical data» on
page 12
4567Z11
The plant operator must also ensure compliance with applicable guidelines on
cable insulation when using a safety limiter. Failure to comply may cause the
safety limiter function to fail.
If an auxiliary switch is required, its switching point should be indicated on the plant
schematic.
Every actuator must be driven by a dedicated controller (refer to
«Connection diagrams», page 15).
9/18
Siemens
Building Technologies
Electrohydraulic actuators for valves
CM1N4566en
2017-05-03
Mounting instructions
Mounting Instruction 74 319 0324 0 for fitting the actuator to the valve are by packed in
the actuator packaging. The instructions for accessories are enclosed with the
accessories themselves.
Orientation
Accessories
ASC1.6
ASC9.3
SKC..
SKC..
Installation instructions
G4563.3
4 319 5544 0
G4561.3
4 319 5545 0
M3240
74 319 0324 0
74 319 0326 0
90°
90°
Accessories
ASZ7.3..
ACT control unit
QAF21..
ASZ6.6
Mounting instructions
74 319 0247 0
M4568
74 319 0554 0
74 319 0399 0
M4501.1
74 319 0750 0
Commissioning notes
When commissioning the system, check the wiring and functions, and set any auxiliary
switches and potentiometers as necessary, or check the existing settings.
Cylinder with valve
stem connector fully
retracted
⇓ stroke = 0%
0
0
1
4566Z13
4566Z12
1
Cylinder with valve
stem connector fully
extended
⇓ stroke = 100 %
The manual adjuster must be rotated counterclockwise to the end stop.
This causes the Siemens valves, types VVF.. and VXF.. to close (stroke = 0 %).
Automatic operation
For automatic operation, the crank (2) on the manual adjustment knob (1) must be
engaged. If not engaged, turn the crank counter-clockwise until the display window (3)
neither shows the scale (4) nor the crank engagement bar.
1
Engaged crank (2) on the
manual adjustment knob (1)
4564Z16
4564Z14
2
Display window with invisible scale dial and crank
engagement bar
10/18
Siemens
Building Technologies
Electrohydraulic actuators for valves
CM1N4566en
2017-05-03
Manual operation
For manual operation, swing out the crank (2) so that the display window (3) becomes
visible. By rotating the crank or the manual adjustment knob (1), the display window
shows the engagement bar and/or the scale dial with stroke indication.
3
4564Z15
4564Z17
4
Swung-out crank,
display window (3)
Display window with scale dial (4) and stroke
indication
Maintenance notes
The SKC.. actuators are maintenance-free.
When servicing the actuator:
∂ Switch off pump of the hydronic loop
∂ Interrupt the power supply to the actuator
∂ Close the main shutoff valves in the system
∂ 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
Recommendation SKC6..: trigger stroke calibration.
«Replacement parts», see page 18.
A damaged housing or cover represents an injury risk
∂ NEVER uninstall an actuator from the valve
∂ Uninstall the valve-actuator combination (actuating device) as a complete
device
∂ Use only properly trained technicians to uninstall the unit
∂ Send the actuating device together with an error report to your local Siemens
representative for analysis and disposal
∂ Properly mount the new actuating device (valve and actuator)
Parts could fly ultimately resulting in injuries from uninstalling an actuator with a
damaged valve housing due to the tensioned return spring.
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
Technical data on specific applications are valid only together with Siemens products
listed under "Equipment combinations", page 3. Siemens rejects any and all warranties
in the event that third-party products are used.
11/18
Siemens
Building Technologies
Electrohydraulic actuators for valves
CM1N4566en
2017-05-03
Technical data
Power supply
Operating voltage
Voltage tolerance
SKC32..
AC 230 V
° 15 %
SKC82..
AC 24 V
° 20 %
SKC6..
AC 24 V
° 20 %
SELV / PELV
50 or 60 Hz
SKC32.60:
SKC82.60, ..60U
SKC60
18 VA / 14 W
15 VA / 12 W
17 VA / 13 W
SKC32.61:
SKC82.61, ..61U
SKC62..
24 VA / 18 W
19 VA / 14 W
21 VA / 15 W
External supply cable fuse
min. 0.5 A, slow
min. 1.6 A, slow
max. 6 A, slow
max. 10 A, slow
Control signal
DC 0...10 V,
3-position
DC 4...20 mA,
0...1000 Ω
Terminal Y
Voltage DC 0…10 V
Input impedance 100 kΩ
Current DC 4…20 mA
Input impedance 240 Ω
Signal resolution < 1%
Hysteresis 1 %
Terminal Z
Resistor 0…1000 Ω
Override control
Z not connected, priority terminal Y No function
Z connected directly to G max. stroke 100 %
Z connected directly to G0 min. stroke 0 %
Z connected to M via 0...1000 ς stroke proportional to R
Terminal U
voltage DC 0...9.8 V
load impedance > 10 kΩ
current DC 4...19.6 mA
load impedance < 500 Ω
Cable cross-sectional area
0.5 … 2.5 mm2 / AWG 21 … 14
Frequency
Max. Power consumption at
50 Hz
Signal inputs
Position
feedback
Connecting
cable
Functional Data Positioning time at 50 Hz 1)
opening
Closing
Spring-return time 1)
Electrical
connections
Standards,
directives and
approvals
SKC32.6..
SKC32.6..
SKC32.61
120 s SKC82.6..
120 s SKC82.6..
18 s SKC82.61
120 s
120 s
18 s
120 s
20 s
SKC62..
20 s
Positioning force
2800 N
Nominal stroke
40 mm
Max. permissible medium
-25…220 (350) °C
temperature
< 0 °C: requires stem heater ASZ6.6
1)
At room temperature (23°C), low ambient temperatures or high Δp may prolong these times
Cable entry
4 x M20 (⊕ 20,5 mm)
..U with knockouts for standard ½” conduit connectors (Ø 21.5 mm)
Product standard
EN 60730-x
Electromagnetic compatibility
(Applications)
EU conformity (CE)
RCM-conformity (EMC)
AC 230 V
EAC conformity
UL certification: UL, cUL
AC 230 V
AC 24 V
For use in residential, commercial, light-industrial and industrial
environments
A5W00007751 1)
A5W00007895 1)
Eurasia conformity for all SKC..
UL 873, http://ul.com/database
12/18
Siemens
Building Technologies
Electrohydraulic actuators for valves
CM1N4566en
2017-05-03
Environmental
compatibility
Dimensions /
Weight
Dimensions
Weight (packing excluded)
SKC32..
SKC82..
SKC6..
The product environmental declarations CE1E4566en01 1) and
CE1E4566en02 1) contain data on RoHS compliance, materials
composition, packaging, environmental benefit and disposal.
refer to «Dimensions», page 17
SKC32.60 9.80 kg SKC82.60
9.80 kg SKC60/62
9.85 kg
SKC82.60U
10.10
kg
SKC62U/UA
10.15
kg
SKC32.61 9.85 kg
SKC82.61 9.85 kg
SKC82.61U 10.15 kg
Materials
Accessories
ASC1.6
Auxiliary switch
ASC9.3
double auxiliary
switch
ASZ7.3
Potentiometer
ASZ6.6
stem heater
Actuator housing, bracket
Die-cast aluminum
Housing box and
Plastic
manual adjuster
1)
The documents can be downloaded from http://siemens.com/bt/download.
SKC32.., SKC82..
Switching capacity
Switching capacity per
auxiliary switch
SKC6..
AC 24 V,
10 mA...4 A resistive,
2 A inductive
AC 250 V, 6 A resistive, 2.5 A inductive
Change in overall resistance
of potentiometer at nominal
stroke
min. current in sliding contact
expected lifetime
max. current in sliding contact
expected lifetime
Operating voltage
Power consumption
Inrush current
ASZ7.3
0…1000 ς
ASZ7.31 0…135 ς
ASZ7.32 0…200 ς
0,05 mA
250'000 full lifts
2,5 mA
100'000 full lifts
AC 24 V ± 20 %
40 VA / 30 W
Max. 8 A (B Series)
SKC62UA enhanced functions
Direction of operation
Direct-acting, reverse-acting
Stroke limit control
Range of lower limit
Range of upper limit
Terminal Y
Starting point of sequence
Operating range of sequence
Z connected to R of
Frost protection monitor QAF21..
Frost protection monitor QAF61..
Sequence control
Signal addition
DC 0...10 V / DC 10...0 V
DC 4...20 mA / DC 20...4 mA
0...1000 ς / 1000...0 ς
0...45 % adjustable
100...55 % adjustable
0...15 V adjustable
3...15 V adjustable
0...1000 ς, added to Y signal
DC 1.6 V, added to Y signal
13/18
Siemens
Building Technologies
Electrohydraulic actuators for valves
CM1N4566en
2017-05-03
Ambient conditions and protection data
Classification to
IEC/EN 60730
Housing protection as per
IEC/EN 60529
Environmental conditions
Transportation
(in transport packaging)
to IEC/EN 60721-3-2
Operation
to IEC/EN 60721-3-3
Storage
to IEC/EN 60721-3-1
Automatic action:
Pollution degree:
IP54
Type 1AA / Type 1AC / Modulation Action
2
Class 2K3
Temperature -30...65 °C
Humidity 5...95 % (no condensation)
Class 3K5
Temperature -15...55 °C
Humidity 5...95 % (no condensation)
Class 1K3
Temperature -15...55 °C
Humidity 5...95 % (no condensation)
Internal diagrams
SKC32.61
AC 230 V, 3-Position
Cm1
end switch
n
solenoid valve for springreturn
c1, c2 ASC9.3 double auxiliary
switch
a, b, c ASZ7.. potentiometer
SKC32.60
AC 230 V, 3-Position
SKC82.61
AC 24 V, 3-Position
Y1
Positioning signal «open»
Y2
Positioning signal «close»
21
spring-return function
N
neutral conductor
Cm1
end switch
n
solenoid valve for springreturn
c1, c2 ASC9.3 double auxiliary
switch
a, b, c ASZ7.. potentiometer
SKC82.60
AC 24 V, 3-Position
SKC60, SKC62
SKC62U
SKC62UA
AC 24 V, DC 0…10 V,
4…20 mA, 0…1000 Ω
U
DC 0 ...10 V
oder
4 ... 20 mA
Ausgang
voll offen
0 ...100 %
Y
M
DC 0 ...10 V
oder
4 ... 20 mA
0 ...100 %
Eingang
Zwangsteuerung
(Signalpriorität)
Eingang
Valve Seat
Detection
Y1
Positioning signal «open»
Y2
Positioning signal «close»
21
spring-return function
G
System potential
U
position indication
Z
override control
Y
positioning signal
M
measuring neutral
G0
operating voltage AC 24 V:
system neutral (SN)
G
operating voltage AC 24 V:
system potential (SP)
Switching without power as
a spring return function
Hub
Valve Jam
Detection
G0
MMI
G
Ventil
14/18
Siemens
Building Technologies
Electrohydraulic actuators for valves
CM1N4566en
2017-05-03
Connection terminals
SKC6..
G0
operating voltage AC 24 V: system neutral (SN)
G
operating voltage AC 24 V: system potential (SP)
Y
Positioning signal DC 0...10 (30) V or DC 4...20 mA
M
Measuring neutral (= G0)
U
Position indication DC 0...10 V or DC 4...20 mA
Z
Override control (functionality see page 8)
01804
3
Auxiliary switch
ASC1.6
c1
4
5
Connection diagrams
SKC32..
AC 230 V
3-Position
SKC32.61
SKC32.60
AC 230 V
AC 230 V
max. 6 A
max. 6 A
(L)
(L)
F1
(Y1)
(Y2) (N)
(Y1)
N1
(Y2)
N
N
N1, N2
Y1, Y2
safety limiter (eg
temperature limiter)
controller
actuators
N1
0%
0%
F1
(N)
L
N
Phase
neutral
Y1
Y2
21
Positioning signal «open»
Positioning signal «close»
Spring-return function
15/18
Siemens
Building Technologies
Electrohydraulic actuators for valves
CM1N4566en
2017-05-03
SKC82..
AC 24 V
3-Position
SKC82.61, SKC82.61U
SKC82.60, SKC82.60U
AC 24 V
AC 24 V
SN
SN
0%
0%
F1
Y1
Y2
G0
Y1
N1
Y2
G0
G
G
N1
SP
SP
AC 24 V
AC 24 V
SP
SP
0%
0%
F1
Y1
Y2
G
Y1
N1
Y2
G
G0
G0
N1
SN
safety limiter (eg
temperature limiter)
N1, N2 controller
Y1, Y2 actuators
SKC6..
AC 24 V
DC 0…10 V, 4…20 mA,
0…1000 Ω
SKC60
SN
SP Systempotential AC 24 V
SN System neutral
F1
Positioning signal «open»
Positioning signal «close»
Spring-return function
Y1
Y2
21
AC 230 V
AC 24 V
SP
G
M
1 3
M
G
M
2
F2
1 3
2
F3
R
M
F4
N1
U
Z
SN
N
16/18
Siemens
Building Technologies
Electrohydraulic actuators for valves
CM1N4566en
2017-05-03
SKC62
SKC62U
SKC62UA
AC 230 V
AC 24 V
SP
F1
G
M
1 3
M
G
M
2
F2
1 3
2
F3
R
M
F4
N1
U
Z
SN
N
Y1
N1
F1
F2
F3
F4
G (SP)
actuator
controller
safety limiter (eg temperature limiter)
frost protection thermostat
terminals: 1 – 2 frost hazard / sensor is interrupted (thermostat closes with frost)
1 – 3 normal operation
temperature detector
Frost protection monitor with 0…1000 Ω signal output, e.g. QAF21.. or QAF61.. (only SKB62UA) *
System potential AC 24 V
G0 (SN) System neutral
* Only with sequence control and the appropriate selector switch settings (see page 5ff)
Warning
When using the safety limiter F1, ensure that no mistakes may occur on cable
insulation that may cancel out the temperature limiter function (applies to both 230 V as
well as 24 V types).
For SN earthing (e.g. PELV) comply under all circumstances with the note above.
Dimensions
All dimensions in mm
**
SKC..U: with knockouts for standard ½” conduit connectors
►
= > 100 mm , minimum clearance from ceiling or wall for mounting,
►► = > 200 mm , connection, operation, maintenance etc.
(Ø 21.5 mm)
17/18
Siemens
Building Technologies
Electrohydraulic actuators for valves
CM1N4566en
2017-05-03
Replacement parts
Order numbers for replacement parts
Actuator type
SKC32.60
SKC32.61
SKC82.60
SKC82.60U
SKC82.61
SKC82.61U
SKC62
SKC62U
SKC60
SKC62UA
Cover
Hand control 1)
Clamp
Stem connection
Control unit
410455828
410455828
410455828
410455828
410455828
410455828
410455828
410455828
410455828
410455828
426855108
426855108
426855108
426855108
426855108
426855108
426855108
426855108
426855108
426855108
410355768
410355768
410355768
410356058
410355768
410356058
410355768
410356058
410355768
410356058
417856498
417856498
417856498
417856498
417856498
417856498
417856498
417856498
417856498
417856498
466857488
466857488
466857598
466857518
1) hand control, blue with mechanical parts
Revision numbers
Type reference
Valid from rev. No.
Type reference
Valid from rev. No.
SKC32.60
SKC32.61
SKC82.60
SKC82.60U
SKC82.61
..D
..D
..D
..D
..D
SKC82.61U
SKC62
SKC62U
SKC60
SKC62UA
..D
..G
..G
..G
..G
Published by:
Siemens Switzerland Ltd.
Building Technologies Division
International Headquarters
Gubelstrasse 22
6301 Zug
Switzerland
Tel. +41 41-724 24 24
www.siemens.com/buildingtechnologies
© Siemens Switzerland Ltd 2002
Delivery and technical specifications subject to change
18/18
Siemens
Building Technologies
Electrohydraulic actuators for valves
CM1N4566en
2017-05-03
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising