Festo DNCV D Serie Brève Description page 22

4.2 Setting the upper limit for the number of double
strokes performed (extending and retracting)
Please note
The number of double strokes is saved in the valve elec
tronics (even if there is a power failure).
S Note that in the position All DIL switches 3 and 4
to OFF" the saved number of strokes can be reset to
0 (procedure see 4.3).
A certain value of double strokes is assigned to the
numbers 1 to 6 on DIL switch 4.
The sum of the DIL switches set to ON corresponds to the
upper limit for the number of double strokes performed
(b).
DIL switch 7 has no function.
DIL switch 8 in the position ON actuates the diagnostic
function (it resets the diagnostic signal on the valve plug
in a diagnostic case).
If the number of strokes performed by the DNCV−... ex
ceeds the upper limit of the number of strokes set on the
diagnostic module:
The LED 'DIAG' on the diagnostic module will flash
(irrespective of the position of DIL switch 8).
The diagnostic signal will be set from 24 V to 0 V
(only if DIL switch 8 is at ON).
22 Festo DNCV 0304a English