3. The I/O module
3-8
Festo P.BE-CB-COMP-EN en 1102d
Control l ing the buffer zone sensor (buffer)
Note
Only in this way is the Checkbox ready to operate:
• Leave non-used sensor inputs open.
Otherwise the display will show the operating status “Full”,
although the buffer zone is free. All good parts will be re-
turned. The small parts conveyor will be switched off after
30 s (standard setting).
Signal duration In order to avoid unnecessary switching movements, the
Checkbox reacts only after a certain signal duration to the
sensor signals for “Buffer zone full” and “Buffer zone empty”.
Modification of the signal duration with CheckKon in the menu
[Window] [System parameters] Z System Z Transporting
systems Z Continuing systems ... z Minimum sensor signal
duration for status:
buffer zone full: 1.0 s (0.1 s ... 180 s)
buffer zone empty: 1.0 s (0.1 s ... 180 s)
Sensor type The CHB-C-X is set at the factory for use with a buffer zone
sensor, the sensor output of which lies at a potential of 0V
(negative switching) in the rest state.
Modification of the sensor type with CheckKon in the menu
[Window] [System parameters]: Z System Z Transporting
systems Z Continuing systems ... z Buffer zone sensor types
= positive switching.
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