Restart Communication Between The Bus Node And The Device - Festo CTEU-PB Electronics Description

4. Error handling
Normal status LED
Error status 1
Error status 2

4.1.3 Restart communication between the bus node and the device

Problem description:
Remedy
LED normal status
4-4
Check to make sure both power supplies for the operat-
•
ing and load voltage are connected.
Check the pin assignment even of pre-assembled cables.
•
PS-LED illuminated green and X1- and/or X2-LED are illumin-
ated green.
The operating voltage supply at the bus node exhibits under-
voltage:
– PS-LED flashing green
The load voltage supply for the connected device or devices
is missing or exhibits undervoltage:
– PS-LED flashing green and
– X1- and/or X2-LED are flashing green
Requirement: The connected device(s) must support this
diagnostic function (see device description).
X1 and X2 flash red simultaneously despite the checked
mechanical connection between the bus node and the device
(dismounting -> mounting)
Proceed as follows:
1. Disconnect the operating voltage.
2. Check the assembly and/or re-establish the cable connec-
tion between the bus node and connected devices.
3. Restart voltage.
X1 and/or X2 are illuminated or flashing green.
Festo P.BE-CTEU-PB-OP+MAINT-EN en 1208NH English