Omron NY532-1500 Reference Manual page 111

• Homing is started and home is defined when the home input signal turns ON after the axis travels
the home input mask distance after the home proximity input signal turns ON while the velocity is
below the homing approach velocity.
11: Operation for Limit Inputs Only
1
The axis starts at the homing velocity. When the limit signal in the direction opposite to the home
input detection direction turns OFF, the axis decelerates to a stop.
2
After the axis stops, the axis moves in the other direction at the homing velocity and decelerates
to a stop when the limit signal turns ON.
3
After the axis stops, the axis moves in the other direction at the homing approach velocity. The
position where the limit signal turns OFF is defined as home and an immediate stop is per-
formed (i.e., a stop using remaining pulses). The axis does not return to the home position.
Home input detection direction
Negative limit input signal
Positive limit input signal
Negative direction
Negative direction
Negative direction
• If you use only the limit signals to perform homing, the point at which the limit signal turns OFF
during operation in the home input detection direction is set as the home detection position.
• If you start homing while the limit signal in the home input detection direction is ON, the operation
will start at the homing velocity in the direction opposite to the home input detection direction.
When the limit signal in the direction opposite to the home input detection direction turns ON, the
axis decelerates to a stop.
• Even if the limit signal turns OFF before the axis decelerates to a stop after the limit signal is
detected, home is not defined and the axis continues to decelerate. In this case, no error will
occur.
• Home is defined if the limit signal turns OFF before the homing approach velocity is reached after
the axis reverses or after starting while the limit signal is input.
Differences between Homing Operation Mode 11 and Other Homing Operation Modes
For Homing Operation Mode 11, the MC Function Module detects when the limit signal turns OFF to
define home. It differs from a Homing Operation Mode that uses the home input as an external latch
signal in the following ways.
Make sure that you understand these differences with other Homing Operation Modes before you
use Homing Operation Mode 11.
NY-series Motion Control Instructions Reference Manual (W561)
ON
OFF
ON
OFF
Homing velocity
Start
Start
Homing velocity
3 Axis Command Instructions
Range of movement
Homing approach velocity
Home
Stops using
remaining pulses.
Homing approach velocity
Stops using
Home
remaining pulses.
Homing approach velocity
Start
Stops using
Home
remaining pulses.
Positive direction
Positive direction
Positive direction
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