
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 075
Edit Date Design Description / 081
Appendix 6. Checking Position Error by Check-board
1. Setting
Learning axis can put out the position error to Check-board. The output signal range is ±5V. Conversion
value is variable by both No.2012#5 and #4 as follows.
Parameter B5 B4 Magnification Pulses / 5V
Least detect 0.1µm
0.1µm / V
Least detect 0.003deg
deg / V
0 0 1 64 1.28 0.0384
0 1 16 1024 20.48 0.6144
1 0 256 16384 327.68 9.8304
No.2012
1 1 4096 262144 5242.88 157.2864
2. Output channel
The channel of output signal is as follows. Vcmd signal is not put out at Learning axis.
• Normal axis
• Learning axis (No.2008#5 = 1) or High-speed axis (No.2005#4 = 1)
• Learning axis (90A7, 90B3, 90B7 series) ** CH3 : Error (M) in 90A7 only
(Note) When No.2007#0 = 1, the marked “∗” shows Vcmd + Feed-forward.
(Note) To use check-board, the servo wave checking adapter (A02B-0120-C211) needs.
In i -series, you must use the other adapter (A02B-0236-K822).
3. The other signal conversion
In the High-speed axis, the output conversion values are different from normal axis as follows.
Output signal Normal axis High-speed axis
Vcmd 0.1875 (min
-1
/ V)
Tcmd 9 ∗ Imax / 40 *1 (A
p
/ V) Same left
Mcmd 2.458 (m/min / V) *2
Vcmd+F.F. 0.1875 (min
-1
/ V)
TSA 750 (min
-1
/ V) Same left
(Note 1) Imax shows the max. current value of servo amplifier.
(Note 2) The conversion value of Mcmd is used when Least detective unit is 0.1µm, Velocity loop is 1msec.
If Velocity loop is 0.5msec, that value is 4.916 (m/min / V).
CH6
TS
M
CH5
TS
L
CH4
Tcmd
M
CH3
Vcmd
M
CH2
Tcmd
L
CH1
Vcmd
L
CH6 CH5
TS
L
CH4
CH3
Mcmd
L
CH2
Tcmd
L
CH1
Error
L
CH6
TSA
M
CH5
TS
L
CH4
Tcmd
M
CH3 **
Vcmd
M
CH2
Tcmd
L
CH1
Error
L