Connect The As-Interface Bus And The Load Voltage - Festo VTSA-ASI-4E4A-Z Serie Manual De Instrucciones

3.6 Connect the AS-Interface bus and the load voltage

The sensor supply for the inputs is provided via the
AS-Interface bus.
Warning
S Use only PELV
as per EN 60204-1 for the electric power supply.
S Also observe the general requirements for PELV
power circuits as per EN 60204-1.
S Only use power sources which guarantee reliable
electrical isolation of the operating voltage as per
EN 60204-1.
Through the use of PELV circuits, protection against
electric shock (protection against direct and indirect
contact) is guaranteed in accordance with EN 60204-1.
Note
The power supply for the valves depends on the DIL
switch setting:
– with 24 V additional supply, separate via the load
voltage connection.
– without additional supply via the AS-interface bus.
Only possible if the maximum current consumption
is not exceeded. The sensor supply gained from the
AS-interface power supply is protected against short
circuits and overload. It must not be connected with
other potentials (example, to a common ground).
26
(protective extra-low voltage)
Festo VTSA-ASI-...-4E4A-Z 1108a English
circuits