5
LED display
The LED displays on the diagnostic module indicate the
following operating states of the DNCV-...:
LED display on
diagnostic module
S1
Diag
S2
12 14
Diag 12 14
S2
S1
S2
S1
Diag 12 14
S2
S1
Diag 12 14
Diag
S2
S1
12 14
S1
Diag
S2
12
14
24
Operating status of the
DNCV-...
Sensor for extended end
position switched
Sensor for retracted end
position switched
– Time limit exceeded
– 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-5/2-...)
Valve for extending the piston
rod switched
Festo DNCV 0112NH English