Festo CTEU-DN, Description, Functions And Maintenance

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6. Error handling
6-4
Festo P.BE-CTEU-DN-OP+MAINT-EN en 1206NH
6.1.2 Check the power supply
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.
Normal status LED PS-LED illuminates green and the X1-LED and/or X2-LED illu-
minate green.
Error status 1 The operating voltage supply for the bus node exhibits under-
voltage:
– PS-LED flashes green