User manual

22
Assembly
WARNING!
Risk of injury from unsuitable connection hoses!
Hoses which cannot withstand the pressure and temperature
range may result in hazardous situations.
• Use only hoses which are authorized for the indicated pressure
and temperature range.
• Observe the data sheet specifications from the hose
manufacturers.
For control function I – Danger if control pressure fails!
For control function I control and resetting occur pneumatically. If
the pressure fails, no defined position is reached.
• To ensure a controlled restart, first pressurize the device with
control pressure, then switch on the medium.
8.4.1. Connection of the Control Medium
If the position of the control air connections is unfavorable
for installation of the hoses, these can be steplessly aligned
by turning the actuator through 360°.
The procedure is described in chapter „8.3.3. Rotating the
Drive“.
Control function A: On the lower connection of the actuator.
Control function B: On the upper connection of the actuator.
Control function I:
On the upper and lower connections of the actuator.
Pressure on the lower connection opens the valve,
pressure on the upper connection closes the valve.
Control
funktion
Control air
connection
Top
Bottom
Control air
connection
Top Bottom
A
B
I
closes opens
the valve
Fig. 22: Control air connection
If used in an aggressive environment, we recommend
conveying all free pneumatic connections into a neutral
atmosphere with the aid of a pneumatic hose.
Control air hose:
Control air hoses of sizes 1/4" or 1/8" (actuator ø 40 mm) can be used.
english
Type 2000/2002