38
Pneumatic Installation
Settings of the flow rate or the control speed with the help of the flow restriction
screws:
→
Open the housing following the instructions in Chapter "8. Opening and Closing the Housing".
→
For proper setting, it is advisable to turn the two flow restriction screws initially into the minimum flow-rate
position. The process valve will then initially move slowly so that you have more time to find the optimum
setting during a switching operation.
Minimizing the flow rate:
Turn clockwise
Maximizing the flow rate:
Turn counterclockwise
→
Observing the safety guidelines, activate the valve location to be set (either using the system control or the
manual controls).
→
Turn the flow restriction screw "P" counterclockwise to set the required flow rate and therefore the opening
time for the process valve. (Tool: flat-blade screwdriver, width
≤
3 mm).
→
Deactivate valve location.
→
Turn the flow restriction screw "R" counterclockwise to set the required flow rate and therefore the closing
time for the process valve.
Flow restriction screw
Exhaust air R
Flow restriction screw
Intake air P
Hand lever of the
mechanical manual
control
Fig. 13:
Flow restriction screws of the solenoid valves
NOTE!
• Makes sure that all manual controls have been deactivated (hand lever all the way left, as pictured) after the
setting work has been completed!
→
If no further installation work is required, close the housing following the instructions in Chapter "8. Opening
and Closing the Housing".
If no system status is available during setting, readjust the system under system operation conditions if
necessary.
Observe the safety guidelines during this!
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