Festo VTSA Series, Руководство пользователя

Страница: 20 / 166

1. Summary of components
1−4
Festo P.BE−VTSA−44−EN en 0601a
1.1 The VTSA valve terminal
Festo assists you in solving your automation tasks at machine
level with VTSA valve terminals. The modular structure of the
valve terminal enables you to match it optimally in your ma
chine or system.
The valve terminal pneumatics provide the following:
the common channels for supply and exhaust air
the electric signals from all valve solenoid coils.
Work connections 2 and 4 are provided for each valve loca
tion on the individual manifold sub−bases. The valves are
supplied with compressed air (operating pressure and pilot
pressure) via the common channels and connections in the
pneumatic supply plates. The exhaust air (from the valves
and the pilot exhaust) is also exhausted via these common
channels and connections.
The valve terminal can be fitted with further pneumatic
supply plates, e.g. in order to supply pressure zones.
The scope of functions at each valve location can be extended
by means of additional vertical stacking components, e.g.
exhaust restriction or pressure regulation.
Depending on the manifold sub−bases used, the VSTA valve
terminal is available with 2, 4, 6 ... 32 valve locations (see
also section 1.1.2 Description of components − Manifold sub−
bases). Maximum 32 valve coils can be controlled.
1.1.1 Overview of variants
Sizes of the VTSA valve
terminal The valve terminals are available with manifold sub−bases
and ISO valves of sizes 18 mm and 26 mm. An adapter plate
is not required if you wish to combine these two sizes on the
valve terminal.