7 Press processes
SCHMIDT
®
PressControl 3000 – V1.3
33
Acknowledging by means of the reject box
A function for the automatic acknowledgement of incorrect pressings is
included in the scope of delivery of the PLC program. However, this function
can only be used if a additional sensor is available. This sensor will detect
whether the part of an incorrect pressing has fallen into a rejects box (Not
OK box).
Connect the sensor for the automatic acknowledgement of an incorrect
pressing to the relevant input (see circuit diagram) of the SCHMIDT
®
SafetyModule.
Select the "Data Input" system function key.
Select the "ACK n.ok-box on/off" parameter.
Enter the value "1". To switch the function off again, enter the value "0".
As soon as the function is switched on, the input is queried as to whether a
part of an incorrect pressing has fallen into a connected rejects box (n.ok-
box). This ensures that a "Not OK part" cannot continue the production
process. The message "Press error! ACK" is acknowledged automatically as
soon as the input transmits a signal.
If the function "Acknowledging by means of the reject box" is used, the
incorrect pressing can no longer be acknowledged by pressing the "ACK"
softkey or the "Acknowledge incorrect pressing" key.
7.4 Counter
Piece counter
By default, this counter is always switched on in the control as-delivered.
If, for monitoring the quality, tolerances have been set (see chapter
"10.2 Tolerances"), the counter will distinguish between "OK parts" and "Not
OK parts". In addition, the produced total number of pieces will be displayed.
ACK
CNT-0-
PCT-0-
PCToff
PCTon
2
40.432 mm
2138 N
Reached stroke :
Reached force :
21 pcs
4 pcs
17 pcs
Quantity :
Quantity nok :
Quantity ok :
30.000 mm
Returnstroke at stroke:
2-Hand-Release
Machine ok.
PC-DEAC
Dataset 1
( )
1
Figure 7-6: View of "Output 1" with default piece counter
Prerequisite
Switching on the
rejects box
