Connecting The As−Interface Bus And The Load Voltage - Festo CPA Serie Manual Del Usuario

4.1 Connecting the AS−interface bus and the load voltage
Please note
Voltage supply of the valves via the AS−Interface bus is
only possible with type CPA...−A SI.
Always supply valve terminal type CPA...−A SI−Z with a
separate 24 V load voltage.
Please note
By the use of PELV power units, protection against electric
shock (protection against direct and indirect contact) is
guaranteed in accordance with IEC/DIN EN 60204−1. The
valve terminals must be earthed to ensure that they func
tion correctly (e.g. EMC).
Yellow cable:
1
Pin 2: AS−Interface +
(brown)
2
Pin 1: AS−Interface −
(light blue)
Black cable (only with
type CPA...−ASI−Z):
3
Pin 2: +24 V (brown)
4
Pin 1: 0 V (blue)
Festo CPA..−ASI... 0503b English
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