Omron CJ1W-C113 - REV 02-2008, Operation Manual

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Wiring Section 3-5
3-5-2 Connecting Input Signals
!Caution If the switching capacity is too low it may cause damage to the switch. Con-
nect a switch with a switching capacity of at least 5 mA for each input.
With N.C. inputs, be sure to connect a power supply for unused terminals and
turn them on.
This section shows examples of connecting interrupt, emergency stop, and
CW/CCW limit input signals.
The input section has both N.O. and N.C. inputs. Either can be used depend-
ing on the axis parameter settings. For details regarding axis parameters,
refer to
4-4 Axis Parameter Area .
Depending on the setting of the origin search operation pattern, the point at
which the origin proximity signal or the CW/CCW limit signal changes from
ON to OFF is used as the timing for origin signal detection. In this case, use a
sensor with no chattering, such as a photoelectric sensor, for the input. Using
a switch with contacts may cause the position of the origin to be displaced due
to chattering. For details on setting operation patterns for origin searches,
refer to page 153.