1. Installation
1-28
Festo P.BE-CPX-PNIO-E N en 1407c English
1.8 Power supply
W arning
Electric shock.
Injury to people, damage to the machi ne and system.
•
Use for the electrical power supply only PELV circuits in
accordance with IEC 60204- 1 (Protective Extra- Low
Voltage, PELV).
•
Observe the general requirements in accordance with
IEC 60204- 1 for PELV ci rcui ts.
•
Useonlyvoltagesourcesthatguaranteeareliableelec-
tric di sconnection of operati ng and load voltage in ac-
cordance with IEC 60204-1.
•
Always connect the circuits for operating and load
voltage supplies U
EL/S EN
,U
VAL
and U
OUT
.
Through the use of PELV circuits, protection against electric
shock (protection against direct and indirect contact) is en-
sured in accordance with IEC 60204-1.
CPX terminals are supplied with operating and load voltage
through interlinking blocks, end plates or bus nodes.
Note
Observe the notes on installation and power supply as well
as potenti al equalisatio n (earthing measures) in the CPX
system description (P.BE-CPX-SYS- ... Electrical connec-
tion) and in the descriptions for the valve terminal used.