Unassociated Document




Exhibit 4.8.46 - Self-Control Components - Actuator - SKD 62


 







	


	
4563
























	
Electro-hydraulically Operated Valve Actuator

	
SKD62


	  	 
	
Stroke: 20mm

	
SKD60













	
l

	
SKD62...:

	 	
AC 24V operating voltage, DC 0...10V control signal


	  	  	 	
4...20mA or 0...1000Ω, with spring returning function


	
l

	
SKD60:

	 	
Same as SKD62, but without spring returning function


	
l

	
SKD62U:

	 	
Same as SKD62, but certified by UL


	
l

	
 SKD62UA:

	 	
Same as SKD62U, but functionality is improved (stroke limit control, sequence control of adjustable starting point and operating range and selection of operating direction)













	
l

	
Selection of linear or equally proportional flow characteristics








	
l

	
Valve position feedback








	
l

	
Stroke checking








	
l

	
Display of LED status








	
l

	
Compulsory control function








	
l

	
Designed with manual adjustment and position indicating functions








	
l

	
Regulating force up to 1000N








	
l

	
Directly installed onto valve body without adjustment








	
l

	
To improve the functionality by additional auxiliary switch, valve stem heating element and mechanical stroke inverter








	
l

	
SKD62U and SKD62UA certified by UL (American Appliance Quality Standard)







 




  





  











  






 



Application


Used for Siemens made series of two-way valve, three-way valve WF..., VVG..., VPF..., VXF...and VXG..., with a driving stroke of 20mm.



	
l

	
Field of application in accordance with IEC 721-3-3 (Provisions by   


International Electro-technical Commission 721-3-3) , Class 3K5








	
l

	
Ambient temperature: -15...+55°C








	
l

	
Temperature of medium flowing through the valve: -25...+140°C








	
  

	
 >140°C: Use SKB...actuators








	
  

	
 <0°C: Required to be used for heating element ASZ6.5 of the valve stem












Function



	
l

	
Electro-hydraulically actuator, maintenance free








	
l

	
Open the valve using pump, pressure cylinder and piston








	
l

	
Close the valve using spring return and by-pass valve








	
l

	
Designed with manual adjustment and position indicating function








	
l

	
SKD62...is designed with spring returning function, in accordance with DIN 32730








	
l

	
Standard electronic variant:








	
  

	
-

	
Selective control signal (DC 0 ... 10 V / 4 ... 20 mA / 0 ... 1000 Ω)








	
  

	
-

	
Selective flow characteristics (proportional / linear)








	
  

	
-

	
Valve position feedback








	
  

	
-

	
Stroke checking








	
  

	
-

	
Display of LED status








	
  

	
-

	
Compulsory control through terminal Z








	
l

	
SKD62UA variant with improved functionality:








	
  

	
-

	
Stroke limit control








	
  

	
-

	
Sequence control of adjustable starting point and Operating range








	
  

	
-

	
Selection of Operating direction (forward/reverse)








	
l

	
Installation space with auxiliary switch








	
l

	
Use valve stem heating element if necessary








	
l

	
Install mechanical stroke inverter if necessary (For SKB...only)








	
l

	
SKD62U and SKD62UA certified by UL (American Appliance Quality Standard)









 




  





  











  






 


Type









	
SKB...stroke 20mm

	
Model

	
Operating Voltage

	
Control


(Control Signal)

	
Spring Return


Function Time

	
Running Time


On    Off

	
Improved Functionality


	
Standard variant

	
SKD62


SKD62U*

	
AC 24V

	
DC 0...10V,


20mA  or


0...1000 Ω

	
Yes

	
15s

	
30s

	
15s

	
No


	
SKD60

	
No

	
-


	
Improved variant

	
SKD62UA*

	
AC24V

	
DC 0...10V,


4...20mA  or


0...1000 Ω

	
Yes

	
15s

	
30s

	
15s

	
Stroke limit control


Sequence control


Signal convariant


	 	
 


* Certified by UL









 


Accessories




	
Model

	
Description


	
ASC1.6

	
Auxiliary switch


	
ASZ6.5

	
Valve stem heating element AC 24V


	
ASK51

	
Mechanical stroke inverter














Placing an Order


Please indicate quantity, product name, model of the actuator when placing an order.



	
For example:

	
1 actuator, Model SKD62, and


	  	
1 auxiliary switch, Model ASC1.6.







Transportation


The actuator, valve and accessories are packed separately and are not assembled together during transportation.







Compatibility


Controller


The actuator can be driven by AC 24V SELV/PELV power supply and all the control systems running control signal of DC 0...10V or 4...20mA.


Installed on the linear valve


The actuator is used for the following Siemens made two-way valves and three-way valves, with a driving stroke of 20mm;


 




  





  











  






 





	
Valve

	
DN[mm]

	
PN[Bar]

	
Technical Literation


	
Two-way valve VV... (control valve or safety shut-off valve)


	
VVF21...(Flanged)

	
25...80

	
6

	
4310


	
VVF31...(Flanged)

	
25...80

	
10

	
4320


	
VVF40...(Flanged)

	
15...80

	
16

	
4330


	
VVF41...(Flanged)

	
50...50

	
16

	
4340


	
VVF45...(Flanged)

	
50...50

	
16

	
4363


	
VVF52...(Flanged)

	
15...40

	
25

	
4373


	
VVF61...(Flanged)

	
15...25

	
40

	
4382


	
Three-way valve VX... ( For control valve with functions of “confluence” and “split flow”)


	
VXF21...(Flanged)

	
25...80

	
6

	
4410


	
VXF31...(Flanged)

	
25...80

	
10

	
4420


	
VXF40...(Flanged)

	
15...80

	
16

	
4430


	
VXF41...(Flanged)

	
15...50

	
16

	
4440


	
VXF41...(Threaded)

	
15...50

	
16

	
4463


	
VXF61...(Flanged)

	
15 and 25

	
40

	
4482


	
Assembled valve VP...(integrated by two-way valve and pressure differential controller);


	
VPF52...(Flanged)

	
15...40

	
25

	
4374











 Refer to the valve technical data accordingly for permissible pressure differential 


ΔPmax and OFF pressure differential ΔPa.







Note: Actuators with a stroke from 6mm through 20mm, can match with valves supplied by any third party as long as this party can provide materials to prove that their valves are of fail-safe mechanical design and can “shut off without applying voltage” and materials regarding required mechanical coupling.







For more information please contact your local Siemens office.


 




  





  











  











Technology


Principle of electro-hydraulically operated actuator



	


	


	
 


 


 


1.  Manual Regulator


2.  Pressure Cylinder


3.  Piston


4.  Oil Reservoir


5.  Pressure Chamber


6.  Pump


7.  Returning Spring


8.  By-pass Valve


9.  Coupler


10.Valve Rod


11.Inner Valve


12.Valve Positioner (0-1)


	
Closed

	
Opened

	  






	
l

	
Signal input Y, increased voltage: pump (6) drives the hydraulic oil in the oil reservoir (4) to the pressure chamber (5), this action will produce a stroke: valve stem (10) contracts and valve head (11) opens.








	
l

	
Signal input Y, decreased voltage: by-pass valve (8) opens to allow the hydraulic oil return to the oil reservoir (4) from the pressure chamber (5) through returning spring (7), valve stem (10) extends and valve head (11) closes.








	
l

	
Signal input Y, constant voltage: the actuator and valve maintain at current stroke position.












Electronic diagram of SKD...actuators





 




  





  











  











Function of Spring Return


All SKD62...actuators are designed with spring return function in the factory. In case of power failure or lack of control signal, the spring may return to let the actuator return to the “0%” stroke position.


SKD60 actuators are not designed with spring return function. In case of power failure the actuator will stay at current stroke position.







Compulsory Control Function


There are three operating modes of the compulsory control input point (Z):




	
w/o such function

	
Compulsory control for 0...1000 Ω signal


	



 -     Disconnected Contact Z


 -     Valve stroke following control signal Y

	



 


 


 -   Z is connected to Contact M through resistor R


 -   Characteristics of linear or equally proportional flow


 -   Starting from 50 Ω / Ending at 900 Ω


 -   Point Y not to function


	
Fully opened valve

	
Fully closed valve


	



 


 -  Contact Z directly connecting to G


 -  Point Y not to work

	



 


 


 -   Z Contact directly connecting to G0


 -   Point Y not to work










	
  

	
Note: For Mode Z, assumption is made for setting of FORWARD in the factory.












Stroke Checking


Checking is required upon the first match between the valve and the actuator to determine the 0% and 100% stroke position of the valve. To this regard, mechanical connection is required between the valve and the actuator (See Section of Compatibility); the power supply is AC 24V. The checking process can be described repeatedly.


 




  





  











  












	





	
Prior to checking, make sure that the manual regulator is changed over “Auto” mode for recording an actual valve.








	
In order to commence the checking, the inside of the lockhole in the actuator’s typeplate must be short-circuited (for example, with screwdriver).


Auto checking procedures are as follows:

	














	
l Change the actuator over 0 stroke (Position (1)), the valve closes and the green LED light flashes.


l Then change the actuator over 100% stroke (Position (2)), the valve opens and the green LED light is ON.


l Save the measurements. The checking process ends. The green LED light is ON (Running normally).


l Change the actuator over positions controlled by control signal Y or Z(3).


l This process shows that Output Point U does not work, for example, the valve only act to represent the actual position when the green LED stops flickering or continues to keep shining

	



 












Display of LED Status




	
LED

	
Displays

	
Function

	
Correction


	
Green

	
ON

	
lOperate in normal

	
Running automatically, all in normal


	  	
Flickering

	
lIn process of stroke checking

	
Wait to end of checking


(LED stop flickering)


	
Red


 

	
ON


 

	
lStroke checking error


 


 


lInternal error

	
Check installation


Restart the checking process


(check holes by short circuiting)


Replace electronic elements


	  	
Flickering

	
lClogged internal valve

	
Check valves


	
    OFF

	
lNo power supply


lDefective electronic elements

	
Check the power supply


Replace electronic elements









 




  





  











  






 




	
 


Standard 


Electronic 


Variant


SKD62,


SKD60,


SKD62U

	










 





	  	
DIL Switch

	  	  
	  	
ON

	
DC 4...20mA

	
Linear


	  	
*OFF

	
DC 0...10V

	
Equally proportional

















	
 


Functionality 


Improved 


Electronic 


Variant


SKD62UA


 


 


 


 

	



 


 


 





 




  





  











  






 






	
DIL Switch

	  	  	  	  
	
ON

	
Reverse

	
Sequence control

	
DC 4...20mA

	
Linear


	
*OFF

	
Forward

	
Stroke limit control

	
DC 0...10V

	
Equally Proportional









* All the switches are set as OFF in the factory.


Selection of operating direction



	
l

	
For normally closed valves, FORWARD indicates an input signal of 0 V and valve closed (for all Siemens valves as listed in the Section “Compatibility” in Page 3).








	
l

	
For normally opened valves, FORWARD indicates an input signal of 0 V and valve opened.









	
Forward

	
Reverse

	  
	



 


- input  DC 0...10V


             DC 4...20mA


             0...1000 Ω

	



 


- input   DC 10...0V


              DC 20...4mA


              1000...0 Ω

	
 





 


	  	  	  	  







Note: function of mechanical spring return is unaffected by the operating direction.


 




  





  











  











Stroke limit control and sequence control




	
Setup Stroke Limit Control

	  	
Setup Sequence Control


	
Use the scroll switch LO and UP to adjust the stroke position up and/or down, with increased by 3% and a maximum of 45%





 

	  	
Use the scroll switch LO and UP to determine the starting point and the sequence within the operating range





 


	
LO Posi.   Min Stroke Limit

	
UP Posi.   Max Stroke Limit

	
LOPosi. Starting Point of Sequence Control

	
UP Posi.  Operating range of Sequence Control


	
0             0 %

	
0           100 %

	
0             0 V

	
0            10 V


	
1             3 %

	
1            97 %

	
1             1 V

	
1             3 V  *


	
2             6 %

	
2            94 %

	
2             2 V

	
2             3 V  *


	
3             9 %

	
3            91 %

	
3             3 V

	
3             3 V  *


	
4            12 %

	
4            88 %

	
4             4 V

	
4             4 V


	
5            15 %

	
5            85 %

	
5             5 V

	
5             5 V


	
6            18 %

	
6            82 %

	
6             6 V

	
6             6 V


	
7            21 %

	
7            79 %

	
7             7 V

	
7             7 V


	
8            24 %

	
8            76 %

	
8             8 V

	
8             8 V


	
9            27 %

	
9            73 %

	
9             9 V

	
9             9 V


	
A            30 %

	
A            70 %

	
A            10 V

	
A            10 V


	
B            33 %

	
B            67 %

	
B            11 V

	
B            11 V


	
C            36 %

	
C            64 %

	
C            12 V

	
C            12 V


	
D            39 %

	
D            61 %

	
D            13 V

	
D            13 V


	
E            42 %

	
E            58 %

	
E            14 V

	
E            14 V


	
F            45 %

	
F            55 %

	
F            15 V

	
F            15 V







*The minimum regulating variable is 3V;


 0...30V control is only for Y.









Accessories



	
Auxiliary Switch ASC1.6


- Switchpoint 0...5% stroke





 

	
Valve Stem Heating Element ASZ6.5


- Medium is below 0oC


- Installed between the valve and the actuator

	



 












 




  





  











  






 


Engineering Precautions


Electrical connection of actuators must meet the requirements of local regulations and the wiring diagram in Page 11.










	





	
Strictly follow all the safety regulation and requirements to prevent from damage and injury.









Valve Stem Heating Element ASZ6.5 can generate a heat output of 30VA, and valve stem must avoid freezing when Operating in refrigerating range 0...-25°C. In this case, the actuator bracket and valve stem need not be insulated to ensure proper air circulation.


The body in contact with the non-insulated hot element may possibly be scalded.


Failing to follow the above-mentioned recommendations may possibly result in accidents or fire.


Follow the permissible temperature range (See Application and Technical Data).


 


 Instructions of Installation


Direction











	  	
Allowed

	
Not allowed







The guidelines of installation for assembling the valves and actuators can be found in the actuator packing box and the instruction manual of the accessories and the installing accessories can be found in the packing box.







Commissioning Precautions


During commissioning of system, you should check the cables and functions, set auxiliary switch, potentiometer and stroke limit device or check the setting values of existing parameters.




	



 


Cylinder with valve rod connectors contracts completely →stroke=0%

	



 


Cylinder with valve rod connectors projects completely →stroke=100%









The manual regulator must be rotated counterclockwise to the end, until the indicator marking red MAN disappears, to completely close the Siemens valve VVF..., VVG..., VPF..., VXF...and VXG...(stroke =0%).


 




  





  











  






 



	



 

	
Manual

	
Operation

	  





Automatic Operation







Maintenance



	





	
When repairing valves:







l      Stop the pump and switch of the power supply. Close the main valves on the pipeline. Relieve pressure in the system. Cool the system down completely. If necessary, disconnect electrical wires and cables..


l      Commissioning must be made again when the valve can correctly be matched with the actuator.







Disposal



	



 

	
Actuators cannot be disposed as domestic wastes because they are provided with electronic and electrical components.


Disposal of actuator must comply with local laws, rules, and regulations.


 







Guarantee


Relevant technical data (ΔPmax, ΔPs, leak rate, noise level and service life) regarding application are valid for Siemens actuators and valves listed in matched “Compatibility” only.



	
 

	
Matching of the actuator to valves from a third party must be approved by Siemens Building Technologies’ in prior; otherwise, all guarantees are in void.







 




  





  











  






 



Technical Data



	
Power supply


 


 


 


 

	
Operating Voltage (SELV, PELV)

	
AC 24V -20%


	
Frequency

	
50 or 60 Hz


	
Power Consumption

	
17 VA / 12 W


	
Fuse of Power Supply Cable

	
Min. 1 A


	  	
Max. 10 A


	
Operating Parameter


 

	
Type of Control (proportional)

	
DC 0...10 V, DC 4...20mA


	  	
or 0...1000 Ω


	
Running Time (50 Hz)

	
ON:30s / OFF:15s


	
Spring Returning Time (Closed)

	
15s


	
Standard Stroke

	
20mm


	
Regulating Force

	
1000 N


	
Flow Characteristics

	
Linear / Equally Proportional


	  	
Optional


	  
	
Signal Input Point

	
Terminal Y


 Voltage


    Impedance Input


 Current


    Impedance Input


 Signal resolution


 Hysteresis phenomenon

	
 


DC 0...10 V


100 kΩ


DC 4...20mA


240Ω


< 1%


1%


	
Terminal Z


 Resistance


Compulsory control function


 Disconnected Z


 Z directly connected to G


 Z directly connected to G0


Z connected to M through 0...1000 Ω

	
 


0...1000 Ω


 


No (prioritized terminal Y)


Max. stroke 100%


Min. stroke 0%


Linear / Equally proportional


	
 Signal Output Point

	
Terminal Y


 Voltage


   Load impedance


 Current


   Load impedance

	
 


DC 0...9.8 V ±2 %


>500 Ω


DC 4...19.6 mA ±2 %


<500 Ω









 




  





  











  






 



	
General Ambient Conditions

	
Permissible highest operating temperature of valve inner medium

	
 


≤140 °C


	
Operation


Ambient conditions


Temperature


Humidity

	
Accord with IEC 721-3-3


Grade 3K5


–15 ... +50 °C


5 ... 95 % rh


	
Transportation


Ambient conditions


Temperature


Humidity

	
Accord with IEC 721-3-2


Grade 2K3


–30 ... +65 °C


<95 % rh


	
Storage


Ambient conditions


Temperature


Humidity

	
Accord with IEC 721-3-1


Grade 1K3


–15 ... +50 °C


5 ... 95 % rh


	
Industrial Standard

	
In compliance with CE Standard


EMC directive


Low voltage protection directive

	
 


89/336/EEC


73/23/EEC


	
Electromagnetic Compatibility


Radiation interference


Immunity interference

	
 


EN 61000-6-3 (Residential)


EN 61000-6-2 (Industrial)


	
Electronic Auto Control Product Standard

	
EN 60 730-2-14


	
C-tick

	
N474


	
Protection Degree

	
EN 60529 ,IP54


	
Safety Degree

	
EN 60730, III


	
UL certification

	
UL 873


	
Dimensions

	  	
See “Dimensions”


	
Weight

	
SKB...


SKC...


ASK51 Stroke Inverter

	
3.60 kg (packaging included)


3.85 kg (packaging included)


1,10 kg (packaging included)


	
Material

	
Actuator case and bracket


Shell and manual regulator

	
Casting aluminum


Plastic


	
Piston-leading Cable

	
SKD62, SKD60


SKD62U, SKD62UA

	
Pg 11 (4 x)


Pg 16 (4 x)


	
Improved Functions SK...62UA

	
Forward / Reverse

	
DC 0...10 V / DC 10 ... 0 V


DC 4...20mA / DC 20 ... 4 mA


0 ... 1000 Ω / 1000 ... 0 Ω


	
Stroke Limit Control

	
Control lower limit range


Control upper limit range

	
0 ... 45 %, Adjustable


100 ... 55 %, Adjustable


	
Sequence Control

	
Terminal Y


Sequence staring point


Sequence operating range

	
 


0...15V, Adjustable


3...15V, Adjustable


	
Accessories

	  	  
	
Auxiliary Switch ASC1.6

	
 


Convariant capacity

	
 


AC 24 V, 10 mA ... 4 (2) A


	
Valve Stem Heating Element ASZ6.5

	
Operating voltage


Power consumption (heat output)

	
AC 24 V ±20 %


30 VA







 




  





  











  






 


Wiring Diagram



	



 

	
 


 


 


 


 


 


 


 


 


B1 Sensor


F1 Temperature Limiter


N1 Controller


Y1 Actuator












Connection Terminals



	



 

	
G0: Operating voltage AC 24V  Neutral Line of the System (SN)


G: Operating voltage AC 24C  Earth Line of the System (SP)


Y: Control signal DC 0 ... 10 (30) V or DC 4 ... 20 mA


M: Neutral line of measurement (=G0)


U: Position display DC 0 ... 10 V or DC 4 ... 20 mA


Z: Compulsory input (See Functions in Page 5)












Auxiliary Switch ASC1.6





 




  





  











  






 


Dimensions


Dimensions in mm











	
*

	
Height of actuator without stroke inverter ASK51=300mm








	
  

	
Height of actuator with stroke inverter ASK51=357mm








	
**

	
Socket dia. of actuator SKD62U...corresponds to cable leading plug Pg16.








	
▲

	
= >100 mm (minimum distance from the wall or ceiling).








	
▲▲

	
= >200 mm (for connection, operation or maintenance, etc.).







 


Stroke Inverter ASK50










* Max. stroke =20mm