Festo CPV -VI Series Manual page 96

4. Commissioning
Desired pneumatic
operating status
Free of leakage
Fast reaction
Faultless
Two pressure zones
Vacuum operation/
low−pressure operation
Maximum vacuum (created by
vacuum generator)
4−14
If the operating status of the pneumatic system differs from
the desired pneumatic operating status, the following condi
tions are probably not fulfilled:
Prerequisites
Tubing connected with care
Regulated auxiliary pilot air
Sufficient pressure supply via
pressure supply points
Non−return valves in common
exhaust line
Limiting the pressure zones
with a separator plate
Externally supplied auxiliary
pilot air (3...8 bar)
Sufficient compressed air
supply
Minimum supply pressure
No back pressure in exhaust
channel 3/5
Remarks
Exhaust the valve terminal at
·
the left and right−hand end
plates (3/5, 82/84)
Applies in the case of several
systems with centrally
ducted exhaust
Subsequent conversion
possible
Controller can only be
operated with pressure
(between 3...8 bar)
The supply pressure must
·
not break down even when
several vacuum generators
are switched on at the same
time. If necessary, increase
the supply pressure.
Silencers must not generate
·
a high back pressure in ex
haust channel 3/5. If necess
ary, fit efficient silencers or
increase the supply pressure.
In order to prevent the ex
·
hausting of the valve affec
ting the generation of
vacuum, you must fit a separ
ator plate with Ident. code S
between the valve plate and
the vacuum generator plate.
Festo P.BE−CPV−EN en 0503g