4.
Zero return
5-9
5. Operations and
adjustment
TSC
4-1
Zero return method
①
Turn the SV-ON input (pin.18) ON. Check that the SVRDY output (pin.32) is ON.
②
When the HOME input (pin.15) is turned ON, the zero return operation will be started.
The actuator starts moving toward the predefined zero point and turns around at the stroke end.
* In some cases, the PAUSE input (pin.16) must be ON.
For details, see
5-1. Pause (
→
P.5-10)
.
③
After turning around, it stops. When it completes returning to the zero point, the HEND output
(pin.29) will be turned ON. Turn the HOME input (pin.15) OFF.
④
If you have configured the parameter No.6 (ORG offset)
(
→
P.5-19)
the position which is moved
by the set value becomes the zero point.
To define the zero-point before execution of programmed operations, it must be
performed. However, it is not necessary for jog and inching operations in the
Function mode 1 (necessary for instruction though).
You cannot change the returning direction and speed.
Position for
starting the zero return
Initial moving
direction
Reverse direction
of the stroke end
Stroke end
Zero point
Home position signal
First time
Zero point
(With offset)
Offset
* This example assumes
the slider type, and
the zero return method =
toward the motor.
Position for
starting the zero return
Initial
moving direction
Stroke end
Reverse direction
Stroke end
Zero point
Positive (+)
Negative (-)
4-2
Positive/negative of moving direction
For definitions of positive (+) and negative (-) of moving direction, the direction in which the actuator
returns after turning around at the stroke end for the zero return operation is regarded as positive (+).
The direction in which it moves toward the stroke end from the middle point of the stroke range
for the first time is negative (-).
Note) If the zero return direction is reverse motor side, the positive (+) and negative (-) will be oppo-
site of the figure above.