
Title 9083 / 9087 / 90A3 / 90A7
Learning Control Operator’s Manual
03 '00.06.07 N.Sonoda Qualified 2'nd issue Draw No.
02 ‘99.01.14 K.Maeda Qualified 1’st issue
A - 63639E - 034
01 ‘97.12.08 K.Maeda Newly designed Sheet 017
Edit Date Design Description / 070
5.2 Setting High gain parameter
In case of using Learning control for Cam grinder etc, and the position error does not converge due to the
influence of disturbance, it is recommended to use the High gain setting.
Refer to “Appendix 3. Parameter table for Learning control”.
(Note) This is not the case of the αL9 or αL6 for Piston lathe etc.
(1) You should set the standard parameter with referring to ”5.1.2 Setting servo parameters”.
(2) Set the following parameters on the emergency ON(*ESP ON),
• No.1825 set to 6000. (Position Gain)
• No.2003#3 set to 1. (PI control)
• No.2004 set to xx1x0001. (Note) You don’t change “x” bit.
• No2005#4 set to 1. (High-speed axis) In 90A7, set to 0.
• No.2008#5 set to 1. (Learning control axis)
• No.2040 set to twice. (PK1)
• No.2041 set to twice. (PK2)
• No.2044 set to twice. (PK2V)
(3) Set Learning control parameters.
• No.2244 set to 200. (Frequency band of the low pass filter)
• No.2246 set to 10. (Maximum order of Gx)
• No.2247 set to 0. (Minimum order of Gx)
• No.2248 set to 64. (Coefficient 1)
• No.2249 set to –32 or 0. (Coefficient 2)
(4) Turn Off / ON the power supply.
(5) Set the other Learning control parameter if necessary.
(6) In case of Adaptive preview control, you should decide the feed-forward coefficients again according to “6.3
Adaptive Method”.
You should take care of No.2254 (Forward order) setting because the Velocity loop of High gain setting is
0.5msec.
(Reference) In case of using the expanded Gx, set the following parameters. You had better not use expanded
Gx because of the hardness of tuning on site. The following is reference only.
• No.2008#3 = 1 (expanded Gx)
• No.2246 = 5 (Maximum order)
• No.2247 = 0 (Minimum order)
• No.2248 = 743 (Coefficient 1)
• No.2249 = –283 (Coefficient 2)
• No.2250 = –419 (Coefficient 3)
• No.2251 = –238 (Coefficient 4)
• No.2252 = 51 (Coefficient 5)
• No.2253 = 178 (Coefficient 6)