Kübler SMC1.3, Safety Manual

Page: 229 / 235

R60047.0002 - Index 2 EN – page 109 / 115
17 Overlap
Using the sensor parameter „Sensor Overlap“, Overlap monitoring can be activated. The
Overlap function can only be performed if the "Op Mode “= 3 is activated, i.e. both
sensors work with a HTL signals.
If the sensors are proximity switch, the recesses of both sensors must be installed in
such a way that only three of the four possible output states occur during the run-off.
The picture below shows that there is never a condition where both proximity switch are
uncovered. If a sensor fails, an error can be triggered in the uncovered phase of the
other sensor, because both sensors display the state uncovered. Removing both sensors
or a cable break can also cause an error.
The type of recess can cause an error while at the same time covered or at the same
time uncovered state. By choosing the proximity switch PNP opener or PNP closer, the
polarity can be adjusted to the input of the SMCX. (SMCX input open corresponds to
low).