Yaskawa MP920 Motion Module - Manual (Page 256)

6.2 SVB-01 Parameters
6-21
6
The following sections describe the zero point return methods.
„ 0: DEC 1 + Phase-C Pulse
This method has three speed levels.
„ 1: Zero Signal
In place of the Phase-C pulse of the Phase-C pulse method, this method uses the zero signal
to return to the zero point.
This method uses just the zero signal to return to the zero point in machines that are not
equipped with deceleration LS and other capabilities.
Speed
reference
0
Rapid traverse
speed
Reverse direction ← → Forward direction
Zero point
Creep speed
Approach
speed
Dog
(Deceleration LS)
Zero point signal
(Phase-C pulse)
Time
Zero point return
position
Zero point return final
travel distance
1. 2. 3. 4.
Speed
reference
0
Reverse direction ← → Forward direction
Zero point
Zero point signal
(ZERO)
Time
1.
2.
3.
Zero point return
position
Zero point return final
travel distance
Rapid traverse speed