Check The Power Supply - Festo CTEU-CO Manual, Functions And Maintenance

3. Error treatment

3.1.2 Check the power supply

Normal status LED
Error status 1
3-4
Warning
Use only PELV circuits as per IEC/EN 60204-1 for the
•
electric power supply (protective extra-low voltage,
PELV).
Also observe the general requirements for PELV circuits
in accordance with IEC/EN 60204-1.
Use only power sources that guarantee reliable
•
electrical isolation of the operating voltage as per
IEC/EN 60204-1.
Check to make sure both power supplies for the operat-
•
ing and load voltage are connected.
The devices connected to the bus node are powered
exclusively via the load voltage connection.
Check the pin assignment of self-assembled cables.
•
Information relating to installing the bus node can be found in
Part I of the product documentation entitled "Installation and
Interface manual", which is supplied with the bus node.
PS-LED illuminates green and the X1 and/or X2 LED illuminate
green.
The operating voltage supply for the bus node exhibits under-
voltage:
– PS-LED flashes green
Festo P.BE-CTEU-CO-OP+MAINT-EN en 1101NH