Festo — VTSA-F-CB — 2021-06a
Product overview
19
4.1.1.7
Pilot air switching valves with pressure sensing
1
2
3
4
5
6
7
8
9
10
11
Fig. 8: Pilot air switching valve
1
M12 connection (optional)
2
LED for pressure switch
3
LED for solenoid coil 14
4
Manual override (optional)
5
Additional valve position
6
Working port (2) of the additional valve
position
7
Working port (4) of the additional valve
position
8
Exhaust port of the pilot air duct
9
Supply port (external)
10
Exhaust port of the pilot air duct
11
Pilot control with pressure switch
The pilot air switching valve can be used for the following purposes:
–
Switching and exhausting the pilot air
The pilot air duct is additionally exhausted unducted via the exhaust ports on both sides of the pilot
air switching valve.
–
sensing of the exhausted status with a pressure switch in the pilot control
The switching signal of the pressure switch can be transmitted in one of the following ways:
–
Internal communication: the switching signal is sent to the CPX terminal.
–
M12 connection: the switching signal can be used in an external controller.
Pilot air switching valves with M12 connection are actuated via the address of the pneumatic interface
or an address extension module.
Pilot air switching valves without M12 connection are treated as separate bus stations.
Variants of pilot air switching valves
ID code
1)
Circuit symbol
Pilot air supply
Manual override (MO)
CT, CTY
Pilot air supply from
port (2) of the manifold
sub-base
self-resetting
