Festo Checkbox Compact CHB-C-C, Руководство пользователя

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4. I/O module extensions of the Checkbox PLC
4-16
Festo P.BE-CB-COMP-EN en 0211a
Sensor type Function
Normally-
open
contact
1)
Normally-
closed
contact
2)
Sensor 1
LOW Sensor 1
HIGH The sensor does not register any
conveyed part. The small parts
conveyor is/remains switched on.
Sensor ...
3)
HIGH
Sensor ...
3)
LOW
The buffer zone is full. The display
switches to “Full.” Good parts are
returned. After the preset time,
the small parts conveyor will be
switched off; the conveyor device
continues to run.
1)
F
actory presetting
2)
To be set with CheckKon
3)
With buffer zone monitoring
– with one sensor: Sensor 1
– with two sensors: Sensor 2
Further information on the buffer zone can be found in
chapter 1.5; on connecting the buffer zone sensors in
chapter 3.3.
1 Buffer zone
2 Conveyor device
3 Sensor 2
4 Sensor 1
1
2
3
4
Fig. 4/2: Buffer zone monitoring with two buffer zone sensors