Omron CS1W-213 - REV 02-2008, Operation Manual

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Wiring Section 3-4
3-4-2 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
4-3 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 149.
Name Connection type
External interrupt input signal N.O.
Emergency stop input signal N.C.
Origin proximity input signal N.C. or N.O.
CW limit input signal N.C. or N.O.
CCW limit input signal N.C. or N.O.