Festo Checkbox Identbox, Manual

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3. The I/O module on the Checkbox
3-15
Festo P.BE-Checkbox-EN en 0103c
The outputs O/1, O/11, O/20, O/29 are intended as an option
for further actuators. If the appropriate periphery is present,
four further reject positions can be installed via these out-
puts.
Note the following when evaluating the output sugnals
“Actuators...” by means of a higher-order controller: If the
test parts are passed through at a high rate, some parts may
be blown back although previously tested parts have not yet
been blown down. This delay arises due to the long distance
between the return valve and the reject valve.
Standard transfer positions of the Identbox/Countbox on a
conveyor unit with 6 reject positions
The compressed air valves of the reject positions are con-
nected directly to the outputs actuators 1.6. These outputs
are set at + 24 V DC if the parts test delivers the following
result:
– incorrectly orientated or superfluous (good) part
– good part of a certain parts type.
If the Checkbox recognizes a test part as a bad or foreign
part, pin O/1 (actuator 7) will be set from rest potential 0 V to
+ 24 V DC.