Diag2 (Red); Fig. 27: Start Error Code 1 Error Code 2 - Beckhoff EK1914 Operating Manual

Diagnosis
9.1.2

Diag2 (red)

Diag2 lights up
The Diag 2 LED lights up red when the bus coupler has detected an external power supply or a cross-circuit.
If the error has been eliminated, the LED goes out.
A more detailed error cause is set in diagnostic CoE object 0x800E.
Diag2 flashes
In case of an error, the Diag 2 LED displays a blink code that describes the error in more detail. The blink
codes are structured as follows:
Flashing sequence
Rapid flickering
First slow sequence
Second slow sequence
Third slow sequence
Fourth slow sequence
Fig. 27: Start Error code 1 Error code 2
The errors indicated by the following flashing codes are reversible. After rectification of the error cause, the
Bus Coupler can be put back into operation with a restart.
Flashing Meaning
code
2-1-1-1 The temperature has exceeded the maximum permissible
temperature (µC1)
3-1-1-1 The temperature has exceeded the maximum permissible
temperature (µC2)
4-1-1-1 The temperature has fallen below the minimum permissible
temperature (µC1)
5-1-1-1 The temperature has fallen below the minimum permissible
temperature (µC2)
If another flashing code is displayed, there is an internal coupler error that has stopped the Bus Coupler. In
this case the Bus Coupler must be checked by Automation GmbH & Co. KG.
Note flashing codes; return the Bus Coupler
Note the flashing code displayed and include this information with the Bus Coupler when you return it.
50
Meaning
Start of flashing code
Error code 1
Error code 2
Error code 3
Error code 4
NOTE
Version: 2.0.0
Remedy
Ensure observance of the
permissible ambient 3
temperature.
EK1914