5
LED display
The LED displays on the diagnostic module indicate the
following operating states of the DNCV−...:
LED display on
diagnostic module
Festo DNCV 0304a English
S1
Diag
12 14
S2
Diag 12 14
S2
S1
S1
S2
Diag
12 14
S1
S2
Diag
12 14
Diag
S2
S1
14
12
Diag
S2
S1
12
14
Operating status of the
DNCV−...
Sensor for extended end
position switched
Sensor for retracted end
position switched
Stroke duration limit
Fault in end position
monitoring (S1 and S2 also
light up)
Set limit of number of double
strokes exceeded
(e.g. for carrying out mainten
ance)
Valve for retracting the piston
rod switched (not with
DNCV−5/2L−... / short light
pulse with DNCV−5/2J−...)
Valve for extending the piston
rod switched (not with
DNCV−5/2LA−... / short light
pulse with DNCV−5/2J−...)
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