
Title 90A3 / 90A7 / 90B3 / 90B7
Learning Control Operator’s Manual
03 ’05.01.13 K.Maeda 3
rd
. updated Draw No.
02 '03.01.06 K.Maeda 2
nd
. updated
A - 63639E - 070
01 ‘00.09.20 K.Maeda Newly designed Sheet 033
Edit Date Design Description
/ 081
When this parameter is set, Learning controller repeats the learning steps.
(Example) In case No.2232 = 2, Learning steps exist up to the 3
rd
Learning step.
1
st
→ 2
nd
→3
rd
→ 1
st
→ 2
nd
→ 3
rd
→ 1
st
→ 2
nd
→ 3
rd
0 1 2
Data range : 0 to 16
Standard : 0
If you can use PRFALL=PRFNO=0 in your case, it is recommended to set PRFALL=PRFNO=1 instead for
the future compatibility that take advantage of the above auto sampling algorithm.
With regard to Total profile number details, refer to 7.2 Learning memory expanded function.
Data range : 0 to PRFALL (Total profile number)
Standard : 0
Learning result is memorized by each profile.
Data range : 0 to 16000 (When No.2007#3 = 1, to 32000 [Velocity sampling time])
Standard : 0
Learning control starts usually from non-zero command after the High-speed cycle cutting (G05) starts. If
this parameter is set to LESTTM, Learning control starts at LESTTM [msec] late from non-zero command
appeared. Regarding use example, see Fig.3-3-3.
Data range : 0 to 32767
Standard : 60 (When Position gain is 30s
-1
)
10 (When Position gain is 180s
-1
)
In case of Suspension mode or Compensation data suspension mode, set the renewal times of
compensation data to BRCT with a Learning period being one unit until you want to stop the renewal. You
have to determine BRCT to reduce the position error to minimize by Learning controller.
Position gain affected BRCT value. The smaller the position gain, the more BRCT is required, so make sure
of actual BRCT by the practical machine.
Data range : 10 to 20 (Velocity 1msec)
1 to 5 (Velocity 0.5msec)
(Note) This parameter must be below Command period (No.2243 etc).
Standard : 0
This parameter is useful for reducing the mechanical shock at finishing Learning control.
The Learning controller halt to output the compensation data for SHKRDC [msec] from the end during the
2245
BRCT Learning suspension count [cycle]
2233
PRFNO Profile number
2234
LESTTM Learning start time [msec]
2262
SHKRDC Shock reducing counter [msec]
2264
PRFALL Total profile number 9087/A