Festo CTEU-CO, Manual, Functions And Maintenance

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3. Error treatment
3-4
Festo P.BE-CTEU-CO-OP+MAINT-EN en 1101NH
3.1.2 Check the power supply
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.
Normal status LED PS-LED illuminates green and the X1 and/or X2 LED illuminate
green.
Error status 1 The operating voltage supply for the bus node exhibits under-
voltage:
– PS-LED flashes green