|  | 4566 |
|--|------|

| Electro-hydraulically Operated Valve Actuator | SKB62  SKC62 |
|-----------------------------------------------|------------------------|
|                                          |                   |
| Stroke: 20mm or 40mm                          | SKB60  SKC60 |

| l      | SK...62...:                                                                                                                          | AC 24V operating voltage, DC 0...10V control signal                                                                                                                            |
|--------|----------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                                                         | 4...20mA or 0...1000Ω, with spring returning function                                                                                                                 |
| l      | SK...60:                                                                                                                                 | Same as SK...62, but without spring returning function                                                                                                                         |
| l      | SK...62U:                                                                                                                                | Same as SK...62, but certified by UL                                                                                                                                           |
| l      | SK...62UA:                                                                                                                               | Same as SK...62U, 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 2800N                                                                                                                 |
| 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 ( For SKB...only) |
| l      | SK...62U and SK...62UA certified by UL (American Appliance Quality Standard)                                                         |

----

| 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...+220°C |
|---|------------------------------------------------------------------------|

| 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 | SK...62...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 | SK...62UA 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 | SK...62U and SK...62UA certified by UL (American Appliance Quality Standard) |
|---|--------------------------------------------------------------------------------------|

----

| SKB...stroke 20mm | Model        | OperatingVoltage | Control(Control Signal)                                  | Spring ReturnFunction Time | RunningTimeOn              Off | ImprovedFunctionality |
|-----------------------|--------------|------------------|---------------------------------------------------------------|--------------------------------------|------------------------------------------------------------------------------------------------------|-----------------------|
| Standard variant | SKB62SKB62U* | AC 24V           | DC 0...10V,4...20mA  or0...1000 Ω | Yes                                  | 15s                                                                                                  | 120s                  | 15s | No |
| SKB60                 | No           | -                |
| Improved variant      | SKB62UA*     | AC24V            | DC 0...10V,4...20mA  or0...1000 Ω | Yes                                  | 15s                                                                                                  | 120s                  | 15s | Stroke limit controlSequence controlSignal covariant |

| SKC...stroke 40mm | Model                   | OperatingVoltage | Control Mode(Control Signal)                        | Spring ReturnFunction Time | RunningTimeOn              Off | ImprovedFunctionality |
|-----------------------|-------------------------|------------------|---------------------------------------------------------------|--------------------------------------|------------------------------------------------------------------------------------------------------|-----------------------|
| Standard              | SKC62SKC62U*            | AC 24V           | DC 0...10V,4...20mA  or0...1000 Ω | Yes                                  | 20s                                                                                                  | 120s                  | 20s | No |
| SKC60                 | No                      | -                |
| Improved              | SKC62UA*                | AC24V            | DC 0...10V,4...20mA  or0...1000 Ω | Yes                                  | 20s                                                                                                  | 120s                  | 20s | Stroke limit controlSequence controlSignal covariant |
|                  | * Certified by UL  |

| Model  | Description                                     |
|--------|-------------------------------------------------|
| ASC1.6 | Auxiliary switch                                |
| ASZ6.5 | Valve stem heating element AC 24V               |
| ASK51  | Mechanical stroke inverter (For SKB...only) |

----

| Valve                                                                                                                                               | DN[mm]                                                                              | PN[Bar]       | Technical Literation         |
|-----------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------|---------------|------------------------------|
| Two-way valve VV... (control valve or safety shut-off valve)                                                                                    |
| VVF21...(Flanged)VVF31...(Flanged)VVF40...(Flanged)VVF41...(Flanged)VVF45...(Flanged)VVF52...(Flanged)VVF61...(Flanged) | 25...10025...15015...15050...15050...15015...4015...150 | 6101616162540 | 4310432043304340434543734382 |
| Three-way valve VX... ( For control valve with functions of “confluence” and “split flow”)                              |
| VXF21...(Flanged)VXF31...(Flanged)VXF40...(Flanged)VXF41...(Flanged)VXF61...(Flanged)                                           | 25...10025...15015...15015...15015 and 25                           | 610161640     | 44104420443044404482         |

----

|        |        |    1.    Manual Regulator2.    Pressure Cylinder3.    Piston4.    Oil Reservior5.    Pressure Chamber6.    Pump7.    Returning Spring8.    By-pass Valve9.    Coupler10.  Valve Rod11.  Inner Valve12.  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. |
|---|-----------------------------------------------------------------------------------------------|

----

| 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                                                                                                                                                                                |

|  | 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 |       |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------|

| LED       | Displays                                         | Function                                            | Correction                                                                                                 |
|-----------|--------------------------------------------------|-----------------------------------------------------|------------------------------------------------------------------------------------------------------------|
| Green     | ON                                               | l Operate in normal                                 | Running automatically, all in normal                                                                       |
|      | Flickering                                       | l In process of stroke checking                     | Wait to end of checking(LED stop flickering)                                                               |
| Red  | ON                                          | l Stroke checking error  l Internal error | Check installationRestart the checking process(check holes by short circuiting)Replace electronic elements |
|      | Flickering                                       | l Clogged internal valve                            | Check valves                                                                                               |
| OFF       | l No power supplyl Defective electronic elements | Check the power supplyReplace electronic elements   |

----

| StandardElectronicVariantSKB62, SKC62SKB60, SKC60SKB62U,SKC62U |  |
|--------------------------------------------------------------------------|--|

|   | DIL Switch |            |                 |
|--------|------------|-----------------|----------------------|
|   | ON         | DC 4...20mA | Linear               |
|   | *OFF       | DC 0...10V  | Equally proportional |

| FunctionalityImprovedElectronicVariant SKB62UA,SKC62UA  |  |
|-------------------------------------------------------------------|--|

----

| DIL Switch |          |                 |            |                 |
|------------|---------------|----------------------|-----------------|----------------------|
| ON         | Reverse       | Sequence control     | DC 4...20mA | Linear               |
| *OFF       | Forward  | Stroke limit control | DC 0...10V  | Equally Proportional |

| 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 |   |

----

| 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                                    | LO Posi. 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 |

|  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 |   |
|--------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------|--------|

----

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

|   | Allowed | Not allowed |
|--------|---------|-------------|

|  Cylinder with valve rod connectors contracts completely →stroke=0% |  Cylinder with valve rod connectors projects completely →stroke=100% |
|--------------------------------------------------------------------------------|---------------------------------------------------------------------------------|

----

|  Interlocking crank(2) on the manual regulating handle (1) |  Display window without scale and crank interlocking rack |
|-----------------------------------------------------------------|----------------------------------------------------------------|

|  Turn the crankDisplay Window (3) |  Display window with dial (4) and stroke indicator |
|----------------------------------------|---------------------------------------------------------|

|  | When repairing valves: |
|--|------------------------|

|  | 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.  |
|--|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

|   | 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. |
|--------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------|

| Power supply                                                                                                                                                                                                                                                       | Operating Voltage (SELV, PELV)                                                                                                                                       | AC 24V -20%/+30%                                                                           |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------|
| Frequency                                                                                                                                                                                                                                                          | 50 or 60 Hz                                                                                                                                                          |
| Power Consumption                                                                                                                                                                                                                                                  |                                                                                                                                                                 |
| SKB62...                                                                                                                                                                                                                                                           | 17 VA / 12 W                                                                                                                                                         |
| SKB60                                                                                                                                                                                                                                                              | 13 VA / 10 W                                                                                                                                                         |
| SKC62...                                                                                                                                                                                                                                                           | 28 VA / 20 W                                                                                                                                                         |
| SKC60                                                                                                                                                                                                                                                              | 24 VA / 18 W                                                                                                                                                         |
| Fuse of Power Supply Cable                                                                                                                                                                                                                                         |                                                                                                                                                                 |
| SKB...                                                                                                                                                                                                                                                             | Min. 1 A                                                                                                                                                             |
|                                                                                                                                                                                                                                                               | Max. 10 A                                                                                                                                                            |
| SKC...                                                                                                                                                                                                                                                             | Min. 1.6 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           OFF                                                   |
| SKB...                                                                                                                                                                                                                                                             | 120 s            15 s                                                                                    |
| SKC...                                                                                                                                                                                                                                                             | 120 s            20 s                                                                                    |
| Spring Returning Time (Closed)                                                                                                                                                                                                                                     |                                                                                                                                                                 |
| SKB...                                                                                                                                                                                                                                                             | 15 s                                                                                                                                                                 |
| SKC...                                                                                                                                                                                                                                                             | 20 s                                                                                                                                                                 |
| Standard Stroke                                                                                                                                                                                                                                                    |                                                                                                                                                                 |
| SKB...                                                                                                                                                                                                                                                             | 20 mm                                                                                                                                                                |
| SKC...                                                                                                                                                                                                                                                             | 40 mm                                                                                                                                                                |
| Regulating Force                                                                                                                                                                                                                                                   | 2800 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 V100 kΩDC 4...20mA240Ω< 1%1%                        |
| Terminal Z     ResistanceCompulsory 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 ΩDC 4...19.6 mA ±2 %<500 Ω |

----

| General AmbientConditions                                                | Permissible highest operating temperature of valve inner medium             |  ≤220 °C                                                                       |
|--------------------------------------------------------------------------|-----------------------------------------------------------------------------|------------------------------------------------------------------------------------------------|
| OperationAmbient conditionsTemperatureHumidity                           | Accord with IEC 721-3-3Grade 3K5–15 ... +50 °C5 ... 95 % rh      |
| TransportationAmbient conditionsTemperatureHumidity                      | Accord with IEC 721-3-2Grade 2K3–30 ... +65 °C<95 % rh        |
| StorageAmbient conditionsTemperatureHumidity                             | Accord with IEC 721-3-1Grade 1K3–15 ... +50 °C5 ... 95 % rh      |
| Industrial Standard                                                      | In compliance with CE StandardEMC directiveLow voltage protection directive |  89/336/EEC73/23/EEC                                                                      |
| Electromagnetic CompatibilityRadiation interferenceImmunity 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                                   | 8,60 kg (packaging included)10,00 kg (packaging included)1,10 kg (packaging included)          |
| Material                                                                 | Actuator case and bracketShell and manual regulator                         | Casting aluminumPlastic                                                                        |
| Piston-leading Cable                                                     | SK...62, SK...60SK...62U, SK...62UA                                         | Pg 11 (4 x)Pg 16 (4 x)                                                                         |
| Improved FunctionsSK...62UA                                          | Forward / Reverse                                                           | DC 0...10 V / DC 10 ... 0 VDC 4...20mA / DC 20 ... 4 mA0 ... 1000 Ω / 1000 ... 0 Ω |
| Stroke Limit Control                                                     | Control lower limit rangeControl upper limit range                          |  0 ... 45 %, Adjustable100 ... 55 %, Adjustable                                           |
| Sequence Control                                                         | Terminal YSequence staring pointSequence operating range                    |  0...15V, Adjustable3...15V, Adjustable                                           |
| Accessories                                                              |                                                                        |                                                                                           |
| Auxiliary SwitchASC1.6                                                   |  Convariant capacity                                                   |  AC 24 V, 10 mA ... 4 (2) A                                                               |
| Valve Stem HeatingElement ASZ6.5                                         | Operating voltagePower consumption (heat output)                            | AC 24 V ±20 %30 VA                                                                        |

----

|  | B1 SensorF1 Temperature LimiterN1 ControllerY1 Actuator |
|--|---------------------------------------------------------|

|  | 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 mAM: Neutral line of measurement (=G0)U: Position display DC 0 ... 10 V or DC 4 ... 20 mAZ: Compulsory input (See Functions in Page 5) |
|--|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

| *  | Height of actuator without stroke inverter ASK51=300mm |
|---------|--------------------------------------------------------|

| **  | Socket dia. of actuator SK...62U...corresponds to cable leading plug Pg16. |
|----------|------------------------------------------------------------------------------------|

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

----