4 - 59
Chapter 4 Synchronous Control
4.8 Phase compensation function
In synchronous control, delays in progresses, etc. cause the phase to deviate at the output
axis motor shaft end with respect to the input axis (servo input axis or synchronous encoder
axis). The phase compensation function compensates in this case so that the phase does not
deviate.
Phase compensation can be set for the input and the output axis. It is possible to
compensate using the delay time peculiar to the system based on the servo input axis or the
synchronous encoder axis on the input axis side. It is also possible to use a compensation
delay time equivalent to the position deviation for each servo amplifier on the output axis side.
Phase compensation of delay time of the input axis
Set delay time peculiar to the system in the phase compensation advance time of the input
axis ("[Pr.302] Servo input axis phase compensation advance time", "[Pr.326]
Synchronous encoder axis phase compensation advance time").
The delay time peculiar to the system is shown below.
(1) Delay time peculiar to the system for a servo input axis
(a) QD77MS
Operation
cycle [ms]
[Pr.300] Servo input axis type
Feed current value
Real current value
Command to servo amplifier
Feedback value
0.88 0
[
μ
s] 1833
[
μ
s] 0
[
μ
s] 3611
[
μ
s]
1.77 0
[
μ
s] 1833
[
μ
s] 0
[
μ
s] 5389
[
μ
s]
(b) QD77GF [RJ010 mode]
Operation
cycle [ms]
[Pr.300] Servo input axis type
Feed current value
Real current value
Command to servo amplifier
Feedback value
0.88 0
[
μ
s] 1774
[
μ
s] 0
[
μ
s] 3763
[
μ
s]
1.77 0
[
μ
s] 3482
[
μ
s] 0
[
μ
s] 7251
[
μ
s]
3.55 0
[
μ
s] 7002
[
μ
s] 0
[
μ
s] 14397
[
μ
s]
(c) QD77GF [CiA402 mode]
Operation
cycle [ms]
[Pr.300] Servo input axis type
Feed current value
Real current value
Command to servo amplifier
Feedback value
1.00 0
[
μ
s] 2777
[
μ
s] 0
[
μ
s] 4777
[
μ
s]
2.00 0
[
μ
s] 4722
[
μ
s] 0
[
μ
s] 8722
[
μ
s]
4.00 0
[
μ
s] 8722
[
μ
s] 0
[
μ
s] 16722
[
μ
s]
(d) LD77MS
Operation
cycle [ms]
[Pr.300] Servo input axis type
Feed current value
Real current value
Command to servo amplifier
Feedback value
0.88 0
[
μ
s] 1781
[
μ
s] 0
[
μ
s] 3672
[
μ
s]
1.77 0
[
μ
s] 1776
[
μ
s] 0
[
μ
s] 5443
[
μ
s]
(e) LD77MH
Operation
cycle [ms]
[Pr.300] Servo input axis type
Feed current value
Real current value
Command to servo amplifier
Feedback value
0.88 0
[
μ
s] 1778
[
μ
s] 0
[
μ
s] 3556
[
μ
s]
1.77 0
[
μ
s] 1778
[
μ
s] 0
[
μ
s] 5333
[
μ
s]
Содержание LD77MH
Страница 2: ......
Страница 48: ...1 16 Chapter1 Outline of Synchronous Control MEMO ...
Страница 84: ...2 36 Chapter 2 Input Axis Module MEMO ...
Страница 104: ...3 20 Chapter 3 Cam Function MEMO ...
Страница 168: ...4 64 Chapter 4 Synchronous Control MEMO ...
Страница 223: ...Appendix 7 Appendices 3 Create the cam data cam No 1 4 Set the synchronous parameter of the axis 1 ...
Страница 234: ...Appendix 18 Appendices MEMO ...
Страница 237: ......