4. Commissioning
4-6
Festo P .BE-MPA-EN en 1108e
The table below shows the effects of gradual start-up
pressurisation when there are electric signals:
External pilot
air supply
Pressure rise
in overall
supply
Pressure rise in
the pilot air
supply (12/14)
Time when a
valve reverses
Movement of
the actuator
Branched after the
soft-start valve
slowly slowly after pressure
rise at (1)
fast
Branched in front
of the soft-start
valve
slowly fast before pressure
rise at (1)
slowly
Tab. 4/1: Effects of slow start-up pressurisation
4.2 Manual override (MO)
The manual override has been designed to be used as
follows:
Actuation typ e
Mode of operation
Non-detenting After actuation the manual
override is reset automatically
by a spring.
Turning with detent The ma nual override remains
actuated until it is reset by hand.
Tab. 4/2: Actuation types of the manual override
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