SD500 Spindle Servo Drive Manual
90
gain.
Common problems during pulse position control
Problem 1:
The system is enabled but the motor does not run or does not run properly.
Monitor:
C5.20 pulse command counting
Judgement:
If there is no change in C5.20, there may be a wiring or soldering error;
If there is a change in C05.20: but the value is abnormal
and the running is not regular, check whether the pulse counting mode is abnormal.
Problem 2:
Exact position
s can’t be reached.
Monitor:
C5.20 pulse command counting, C5.25 motor encoder pulse counting (spindle encoder C4.25), C4.15 position error
Judgement:
If C5.20 and C5.25 increments are the same, and C4.15=0, check whether the system ratio and command are set correctly;
otherwise, try to increase gain a little.
Problem 3:
Analysis of jitter during position control
Monitor:
C04.15 position error
High-frequency jitter: loud vibration sound, strong vibration felt by hands if not by naked eyes, generally such vibration is caused by high gain
of speed loop.
Conclusion:
Reduce the speed loop gain F15.25; and increase F2.37 speed feedback filter (increased to 3~7ms);
Low-frequency jitter: vibration can be observed by the naked eye and frequency is low, which is generally caused by high gain of position loop
or the speed measurement method.
Conclusion:
Reduce position loop gain F15.11,
increase the integral time F15.26 and weaken the response; Adjust F15.46 speed measurement
method (0~1 modification)
5.4 Spindle Orientation
Z pulse or proximity switch can be used for the zero point of orientation positioning and orientation is available when X3 terminal is valid.
Set the orientation point: For only one orientation point, check the current value by entering C04.00 and long press the confirmation key for
3 seconds, and exit the current value to confirm the change, and the current value will be stored in F24.07. Check the value of F24.07 after
setting is completed.
Code
(Address)
Designation
Content
Factory value
(setting range)
Adjustable
properties
F24.00
(0x5800)
Spindle positioning
V/F SVC FVC PMVF PMSVC PMFVC
0: disabled; 1: enabled
0
(0~1)
STOP
F24.01
(0x5801)
Orientation positioning zero
point
V/F SVC FVC PMVF PMSVC PMFVC
0:Z-pulse; 1: proximity switch
0
(0~1)
STOP
F24.02
(0x5802)
Zero update mode
V/F SVC FVC PMVF PMSVC PMFVC
0: update only at the first time after power-up
1: update at each zero-edge delay signal
0
(0~1)
STOP
