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4.2. Flash Codes
The different flash codes are given via the status LED, terminal 1 and, if applicable, via the Dupline bus.
They signal the present status of the DFA.
Signal sequence
Flash code
Description
LED off
0
DFA inoperative
LED on
1
DFA operating (standard mode)
LED sequence:
0,9 s on / 0,1 s off
2
RCCB error (no tripping)
LED sequence:
0,1 s on / 0,9 s off
3
automatic connection active
LED sequence:
1 s on / 1 s off
4
automatic connection
failed (blocked)
Flash code 2 has the highest priority and can only be reset by briefly switching off the DFA (RESET)
for a short time.
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