
4. SERVO FUNCTION DETAILS B-65150E/04
− 148 −
#7 #6 #5 #4 #3 #2 #1 #0
1953 8X09 BLCU
2009
−
BLCU (#6) 1: To enable the backlash acceleration function during cutting feed
only
This function is effective when the backlash function is used.
When this function is used with the backlash function, the applicable
series and editions of the servo software will be as follows:
Series 9070/K(11) and subsequent editions
Series 9080/K(11) and subsequent editions
Series 9090/A(01) and subsequent editions
Series 90A0/C(03) and subsequent editions
[Reference] Adjustment the backlash acceleration
Use an arc program to monitor check boards ch1 and ch3 (VCMD
waveform).
Pay attention to the VCMD waveform when the motor rotation reverses
(the VCMD waveform passes the GND level).
If a protrusion appears, increase the backlash acceleration.
An excessive acceleration causes an inverse notch.
Fig. 4.6.4 (a) Two-stage backlash adjustment using the VCMD waveform
Time
Optimum 0
compensation
VCMD
Time
Insufficient 0
compensation
VCMD
Time
Excessive 0
compensation
VCMD