Manual Offset-Signal Adjustment Of The Motor Current; Detection (Fn00F) - YASKAWA Σ-V Series User Manual

6.11 Manual Offset-Signal Adjustment of the Motor Current

Detection (Fn00F)

Use this function only if the force ripple is still high after the automatic offset adjustment of the motor current
detection signal (Fn00E).
Follow the steps below.
Step Display Example
1
2
3
4
5
Repeat the above operations (phase-U and-V alternately) until adjusting the offset amounts both for phase-U and
6 -V in both directions cannot reduce the force ripple any more.
Then, perform the same operation by adjusting by smaller amount.
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8
6.11 Manual Offset-Signal Adjustment of the Motor Current Detection (Fn00F)
If this function is executed carelessly, it may worsen the characteristics.
Observe the following precautions when performing manual servo tuning.
• Run the linear servomotor at a speed of approximately 100 mm/s.
• Adjust the offset until the force reference monitor ripple is minimized, monitoring the
force reference by using the analog monitor.
• Adjust the offset amounts of phase U and phase V of the linear servomotor alternately
several times until these offsets are well balanced.
Keys Operation
Press the Key to view the main menu for the util-
ity function mode.
Use the or Key to move through the list,
select Fn00F.
Press the Key. The display is switched to the
execution display of Fn00F.
Note:
If the display is not switched and "NO-OP" is dis-
played in the status display, the Write Prohibited Set-
ting (Fn010 = 0001) is set. Check the setting and
reset. (Refer to 6.12.)
Press the or Key to adjust the offset amount
of phase-U.
Adjust the offset amount by 10 in the direction that
the force ripple is reduced.
Adjustment range: -512 to +511
Press the Key. The cursor moves to the phase-V
side.
Press the or Key to adjust the offset amount
of phase-V.
Adjust the offset amount by 10 in the direction that
the force ripple is reduced.
Adjustment range: -512 to +511
Press the Key to save the result of adjustment in
the SERVOPACK.
When the saving is completed, "DONE" is displayed
in the status display.
Press the Key to return to the Utility Function
Mode main menu.
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