Check The Power Supply - Festo CTEU-DN Description, Functions And Maintenance

6. Error handling

6.1.2 Check the power supply

Normal status LED
Error status 1
6-4
Warning
Use only PELV circuits for the electrical power supply in
•
accordance with IEC/EN 60204-1
(Protective Extra-Low Voltage, PELV).
Observe also the general requirements for PELV circuits
•
in accordance with IEC/EN 60204-1.
Use only voltage sources that ensure a reliable electric
•
separation of operating voltage in accordance with
IEC/EN 60204-1.
Always connect both circuits for operating and load
•
voltage supply.
Check to make sure both power supplies for the operat-
•
ing and load voltage are connected.
Note
The devices connected to the bus node are powered ex-
clusively 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-LED and/or X2-LED illu-
minate green.
The operating voltage supply for the bus node exhibits under-
voltage:
– PS-LED flashes green
Festo P.BE-CTEU-DN-OP+MAINT-EN en 1206NH