Specifications
14.3
Motion Control
14
-89
Fig. 14.8 Spindle orientation C phase range compensation
Fluctuation of spindle at the orientation stop
If the spindle fluctuates at the orientation stop, set one of the following spindle drive parameters and
then follows the procedure for PLC program.
Setting the spindle drive parameter
• MD6525 (Cn525) MULTI_FUNCTION_SEL_PPI (For each axis)
Meaning: Multi-function selection PPI
Setting value: 0---Fluctuation control at position control stop function is disabled
1---When PPI signal entered, fluctuation control at position control stop function
is enabled
• MD6595 (Cn583) ORT_DB_GAIN_DEC_RATIO_H (For each axis)
Meaning: Percentage of gain reduction at positioning completion (H gear)
Setting value: [%]
• MD6596 (Cn584) ORT_DB_GAIN_DEC_RATIO_L (For each axis)
Meaning: Percentage of gain reduction at positioning completion (L gear)
Setting value: [%]
PLC program processing
• When orientation is enabled,
Enable Orientation, and then wait for the spindle Exact Stop DB3nDBX60. 7 = 1.
When DB3nDBX60. 7 = 1 is permitted, set DB3nDBX21.6 = 1 (PPI: n controller integrator dis-
able). These parameters allows the servo drive gain to decrease.
• When activated (M3, Tapping, Re-indexing, etc.)
Simultaneously with the wake-up signal, set DB3nDBX21.6 = 0 (PPI: n controller integrator dis-
able).
CNC
Spindle control function
CNC parameter
REFP_SET_POS[0]
REFP_SET_POS
[
1
]
PLC
Forward
Reverse
select[0]
(DB3xDBX2.4-7=0)
PLC program
select[1]
(DB3xDBX2.4-7=1)