Vtsa - Festo VTSA Series Description

3. Installation
3.3.3 VTSA... valve terminal with pressure zone separation
3−18
Note
If the VTSA/VTSA−F valve terminal is also equipped
·
with other valves, operate valves with identifier T22CV−A,
ID code VV (reversible 2x2/2−way valves) in a separate
pressure zone with separate exhaust ducts (3) and (5).
Note the following in the case of type VTSA... valve ter
minals which are operated with an internal pilot air supply
and which have several pressure zones:
The pilot air supply for all solenoid coils is branched
·
centrally from supply port (1) in the right end plate (see
Fig. 3/3) or the soft−star t valve.
The pressure zone, which is supplied via port (1) on the
·
right−hand end plate, must be operated at a pressure
which corresponds at least to the pilot pressure required
for the valve terminal (see Appendix A, Tab. A/6,
Fig. A/1).
A seal with duct separation and a pneumatic supply plate are
required for each additional pressure zone (see Fig. 3/3).
The following figure shows the assignment of the supply and
exhaust ports to the valves using an example of a VTSA valve
terminal with blocked ducts (1), (3) and (5).
The ports (1) or (3/5) are:
For the pressure zone on the outside right:
On the right end plate if the valve terminal is equipped
with an end plate of type VABE−...R−... or type
VABE−...RZ−...
Festo P.BE−VTSA−44−EN en 0905e