Yaskawa MP920 Motion Module - Manual (Page 202)

5 SVA Module Specifications and Handling
5.4.1 Motion Fixed Parameters
5-60
„ 3: Phase-C Pulse
This method uses just the Phase-C pulse of the Servomotor to return to the zero point in
machines that are not equipped with deceleration LS and other capabilities.
„ 4: DEC 2 + Zero Signal
In place of the Phase-C pulse of the DEC 2 + Phase-C pulse method, this method uses the
zero signal to return to the zero point.
„ 5: DEC 1 + LMT + Zero Signal
In place of the Phase-C pulse of the DEC 1 + LMT + Phase-C pulse method, this method
uses the zero signal to return to the zero point.
„ 6: DEC 2 + Phase-C Pulse
This method searches for the zero point at creep speed after going in reverse at approach
speed.
It is used for machines that require excellent repeatability accuracy.
0
1.
2.
3.
Reverse direction ←→ Forward direction
Speed
reference
Zero point signal
(Phase-C pulse)
Approach speed
Creep speed
Zero point return
position
Zero point return final
travel distance
Time
Zero point
0
1.
2.
5.
4. 3.
6.
Reverse direction ←→ Forward direction
Speed
reference
Dog
(Deceleration LS)
Zero point signal
(Phase-C pulse)
Rapid traverse
speed
Creep speed
Approach speed
Zero point return
position
Zero point return final
travel distance
Time
Zero point