7.3.5.4 Compensation as a function of the electrical angle
(EPSRS), small table
Teaching routine and compensation
à
small CompTab (250er)
- Incremental, ‘rotary' recurring position
- Without offset and delta, with tuning, with fader
- (1) Teach epsrs, commutation angle (electrical)
No.
Action
1
Open manual mode window
2
Speed control mode control setting (set high rigidity, for smooth running)
3
Start control
4
Run motor at low speed (≤ 1 rpm).
5
Set the position source for the teaching, activate teaching: Select
P 385[0] -
CON_TCoggTeachCon = (1)TeachEpsRS-1
.
à
The teaching routine begins.
6
Wait until at least 1 motor revolution is completed in the teaching routine
(internal filter time).
---
Check
P 440[0] - CON_TAB_TabIndex
and
P 446[0] - CON_TAB_OutVal
7
With the control still operating, the teaching is then stopped by calling the
calculation function once:
P 385[0] - CON_TCoggTeachCon = (3)CALC1.
This imports all values into the compensation table
P 380 - CON_
TCoggAddTab
(small table with 250 elements).
8
Stop control
9
Start the compensation:
P 382[0] - CON_TCoggComp = (1)EPSRS
After this, the q-current feed forward control becomes active when the control
is restarted.
10
Save device data.
- The position source used by the teaching is also saved here. It will later be
used for the compensation once again in exactly the same manner.
MOOG
ID No.: CB40859-001 Date: 11/2020
MSD Servo Drive - Device Help
122
7 Control
7.3.5.5 Compensation as a function of the absolute position
(ABSPOS)
Teaching routine and compensation
à
big CompTab (4000)
- Absolute, 'linear' continuous position
- With offset and delta, with tuning, without fader
- (3) Teach (277)MPRO_FG_UserRefPos, reference position in user units
- (7) Teach posact from pcon encoder, actual position from encoder for position
control loop in reference scaling, scope signal 152
- (9) Teach (412)CON_PCON_ActPosition, actual position of the position control in
reference scaling
- (10) Teach posact from pcon encoder, actual position from so-called redundant
encoder in reference scaling, scope signal 153