Festo Checkbox Compact CHB-C-C, Manual

Page: 110 / 138

A. Technical appendix
A-8
Festo P.BE-CB-COMP-EN en 0211a
Fault situation Cause Remedy
...Full although the buffer zone
is not full.
Good parts in all orientations
are blown back into the small-
parts conveyor. – Control cable defective or in-
correct pin assignment at
connection BUFFER/FEEDER.
– Incorrect sensor type set
– Check correct wiring at
connection BUFFER/FEEDER.
– With CheckKon: Switch
polarity
...E02, although length of con-
veyed part is shorter than max.
permitted length. – Conveyed part has lots of
holes or is semi-transparent
Conveyed part
– Speed of conveyor belt has
been modified
With CheckKon:
– Increase conveyor belt speed
– Increase exposure time,
dividing factor
– Vary grey value threshold
– Limit camera lens coverage
– Activate filter function
...E02 occurs in the morning,
although the Checkbox worked
perfectly the day before. – High fluctuations in tempera-
ture for example between
day and night
– Conveyor device has been
replaced
With CheckKon:
Setting the picture limits
...E04, although only a few bad
parts pass through the test
procedure. Moving particles of dirt on the
conveyor device – Clean the conveyor device
with compressed air
– Install a reject device in front
of the conveyor device