Roland Double Sheet Detector R1000 Series Manual page 32

System description
The following is a typical application example
Start
PLC
1. select Prog.1
2. measure Pr.1
3. evaluate result Pr.1
4. select Prog.2
5. measure Pr.2
6. evaluate result Pr.2
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32
Double Sheet Detector-series I20
If all four pairs of sensors are activated (system parameter "pairs of
Note
sensors", each possible combination with only 2 or 3 sensors can be
selected. On the other hand the combinations for example for the sensor
number 4 cannot be selected, if only 3 sensors are activated.
The following rule applies: The highest sensor number in the combination
determines the minimum number of activated sensors.
The combination is a program parameter, therefore methods a) and b) can
Note
form a practical combination, for example, two stacks of sheets for instance
left and right blanks with different thicknesses can thus be checked for
double sheet.
1,5 mm
Manual
Program
1
2
1,5 mm
B0069991 / Rev. 1.7
Thickness Sensor
1,5 mm 1, 2
1,8 mm 3, 4
1,8 mm 1,8 m