Siemens SKB60 Manuel - Sayfa 2

Anahtar Siemens SKB60 için çevrimiçi göz atın veya pdf Manuel indirin. Siemens SKB60 32 sayfaları. Auxiliary switch
Ayrıca Siemens SKB60 için: Montaj Talimatları (6 sayfalar), Montaj Talimatları (10 sayfalar), Montaj Talimatları (7 sayfalar), Montaj Talimatları (6 sayfalar), Montaj Talimatları (10 sayfalar), Montaj Talimatları (4 sayfalar)

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1. Connection Diagrams

Use

For the operation of Siemens 2-port and 3-port valves of the types VVF.., VVG.., VXF.. and

VXG.. with a 20 mm stroke as control and safety shut-off valves in heating, ventilation and

air conditioning plants.

Technical design

Principle of electro-hydraulic actuators

Opening the

valve

Closing the

valve

Manual

operation

mode

Siemens

Smart Infrastructure

Valve closed

The hydraulic pump [6] forces oil from the suction chamber [3] to the

pressure chamber [8], thereby moving the pressure cylinder [2] downwards.

The valve stem [11] retracts and the valve opens. Simultaneously, the return

spring [4] is compressed.

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.

For manual operation, swing out the crank so that the display window

becomes visible. By rotating the crank clockwise, the pressure cylinder is

moved downwards. The display window shows the engagement bar and/or

the scale dial with stroke indication.

In the manual operation mode, the positioning 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 positioning signals Y and Z. The crank remains swung out and in the

display window the red indicator dial remains visible.

Note:

When setting the controller to manual operation for a longer

period of time, we recommend adjusting the actuator with the

manual adjuster to the desired position. This guarantees that

the actuator remains in this position for that period of time.

Attention: Do not forget to switch back to automatic operation

after the controller is set back to automatic control.

Valve opened

Manual adjuster

Pressure cylinder

Suction chamber

Return spring

Solenoid valve

Hydraulic pump

Piston

Pressure chamber

Position indicator (0 to 1)

Coupling

Valve stem

Plug

CM1N4564en

2023-10-17