Functional Sequence - Roland R100 Series Manual

System description
2.3

Functional sequence

The transport facility places the sheet onto the sensor. Now the sensor will contact the sheet
(magnetic force of attraction) and process the sensor signal. According to the preset limits, the
respective signal output (0-sheet, 1-sheet, 2-sheet) will be activated.
If the output signal for 2-sheet is active, the PLC stops the material transport for removal of the
double sheet.
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Double Sheet Detector R100-Serie A100
for single sided sensors
Note! "Active" means, that the signal output will switch. In case the supply
voltage fails, all signal outputs (0-, 1-, 2-sheet) will become inactive.
The PLC must then stop the material transport.
Caution! Usually, the signal outputs of the control unit will be used for stopping
the material transport facilites and / or machines in case of double
sheet.
As soon as the double sheet is removed from the sensor(s), the signal
outputs revert instantly to normal conditions (0-sheet / 1-sheet).
Suitable control measures must ensure that the previously stopped
material transport facilites and / or machines cannot automatically
restart and thus create hazardous situations.
Manual
B0003306 / Rev. 1.0