If the operating status of the pneumatic system differs
from the desired pneumatic operating status, the follo-
wing requirements are probably not fulfilled.
Desired
pneumatic
operating status
Requirement Remarks
Free of leakage – carefully laid tubing
– regulated auxiliary pilot air
—
Fast reaction Sufficient pressure supply
via intermediate pressure
modules
• Exhaust valve terminal at
left and right-hand end
plates (3/5 , 82/84)
Free of interference Non-return valves in
common exhaust tubing
– Applies when several
systems with central
ducted exhaust are used
Two pressure
zones
Pressure zones are limited
by isolating plate
– Can be fitted later
Vacuum operation/
low pressure operation
Separately regulated
auxiliary pilot air
(3-8 bar)
– Regulator can only be
operated with pressure
(between 3 and 8 bar)
EMERGENCY STOP of
pressure zones
Regulator function for
auxilary pilot air guaranteed
in spite of complete supply
being switched off
– Regulator regulates
auxiliary pilot air for all
valve plates on a terminal
Slow switching on after
EMERGENCY STOP
When there are control
signals the auxiliary pilot air
must be at full level
immediately after it is
switched on
4. Commissioning
4-10 CPV... 9802