Diag3 (Red) And Diag4 (Red) - Beckhoff KL6904 Operating Instructions Manual

Diagnosis
Flashing Code
rapid flickering, alternating with 6 flash pulses
rapid flickering, alternating with 7 flash pulses
rapid flickering, alternating with 8 flash pulses
rapid flickering, alternating with 9 flash pulses
rapid flickering, alternating with 10 flash pulses
These errors can only be reset by switching the power supply for the TwinSAFE terminal off and back on
again.
6.1.3

Diag3 (red) and Diag4 (red)

The Diag 3 and Diag 4 LEDs indicate internal terminal errors.
Returning the terminal
These errors lead to shutdown of the terminal. The terminal must be checked by Beckhoff Automation
GmbH & Co. KG.
Diag3
lit
lit
In the event of a fault the Diag 4 LED indicates the type of error through flashing codes. The flashing codes
are structured as follows:
Flashing sequence
Rapid flickering
First slow sequence
Second slow sequence
Start Error code Error code argument
Count the number of flash pulses after the rapid flickering sequence
• during the first slow sequence in order to ascertain the error code
• during the second slow sequence in order to ascertain the error argument
The flashing code is repeated after the second slow sequence, followed by rapid flickering.
50
Meaning
Field voltage too high
Terminal temperature too low
Terminal temperature too high
Temperature difference error
error in output circuit through Open Load, external
supply or cross-circuit
NOTE
Diag4
flashing
off
Meaning
Start of flashing code
Error code
Error code argument
Version: 3.0.0
Fehlerquelle
µC1
µC2
KL6904