Festo Checkbox Identbox, Manual

Page: 117 / 158

A. Technical appendix
A-3
Festo P.BE-Checkbox-EN en 0103c
A.1 Operating faults
A.1.1 General cause of faults
Problem Cause Remedy
Device cannot be switched on
with START button; START and
STOP buttons light up at the
same time. No power supply of the I/O
module – Internal supply: Insert the
(blanking) plug preset at the
factory into the connec-
tion“Controller”.
– External supply: Replace the
bridges in the (blanking) plug
by a connection to an exter-
nal power supply; check the
external power supply.
(Compare chapter 3.2)
Device does not function, all
illuminous buttons flash Ambient, setting, data or hard-
ware error 1. Identify error coding in
chapter A.1.2
2. Eliminate error
3. Quit with STATUS button
Good test parts are sorted out
as bad parts – Tolerance set too low
– Incorrect sample part
selected via TYPE SELECT
– Increase tolerance
– Repeat teach procedure with
more sample parts
– Select (correct) sample part
with TYPE SELECT buttons
Bad test parts are accepted by
the device as good parts – Tolerance set too high
– Deviations not recognized by
the Checkbox
– Reduce tolerance
With CheckOpti:
Optimize the teach data
LCD COUNTER: Display FULL:
Good parts in all orientations
are blown back into the small
parts conveyor The preselected counter status
is reached and is not reset by
the external controller Check connection to controller
In spite of light weight, con-
veyed parts are not reliably
blown down at the delivery
points.
– Blow-down timing point
incorrectly set
– Suction effect due to flow
resistance of conveyed part
With CheckKon:
– Modify blow-down timing
point
– Modify nozzle geometry