Festo Smart cubic CPA-SC Series, Manual

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3. Installation
3−21
Festo P.BE−CPASC−EN en 0412b
Valve terminal
Valve terminal
Common 3/5
Common 82/84 Common 3/5
Common 3/5
System 2
System 1
Common 82/84
Central 3/5
Central 82/84
Pressure
compensation
Pressure
compensation
Central pressure compensation
Fig.3/8: Common lines with non−return valves
3.5.2 Loosening the pneumatic connections
Warning
Pneumatic tubing still under pressure may perform
sudden uncontrolled movements when disconnected,
thereby causing injury to human beings. Carry out the fol
lowing steps before you loosen the pneumatic tubing on
the CPA valve terminal:
·
Switch off the compressed air supply.
·
Make sure that all pneumatic tubing is pressureless.
·
Exhaust all actuators which are controlled by valves
which are blocked in the basic or mid−positions.