Important – Yaskawa Sigma II Series DC Power Input SGMAJ User Manual
Page 157
7.2 Operation in Utility Function Mode (Fn)
7-13
7
7.2.7 Manual Offset-adjustment of Motor Current Detection Signal (Fn00F)
The adjusting range of the motor current detection offset is -512 to +511.
To adjust the offset, perform the automatic adjustment (Fn00E) first.
And if the torque ripple is still big after the automatic adjustment, perform the manual adjustment.
If this function, particularly manual adjustment, is executed carelessly, it may worsen the characteristics.
When performing manual adjustments, run the motor at a speed of approximately 100 min
-1
, and adjust the
operator until the torque monitor ripple is minimized. (Refer to 9.5 Analog Monitor.) Adjust the phase-U
and phase-V offsets alternately several times until these offsets are well balanced.
Step
Display after
Operation
Key
Description
1
Press the DSPL/SET Key to select the utility function mode.
2
Press the UP or DOWN Key to select Fn00F.
Note: The enabled digit blinks.
3
Press the DATA/ENTER Key, and the display will be as shown
on the left (phase U).
4
Press the LEFT or RIGHT Key to display the phase-U offset
amount.
5
Press the UP or DOWN Key to adjust the offset. Carefully
adjust the offset while monitoring the torque reference monitor
signal.
6
Press the LEFT or RIGHT Key.
The display shown on the left appears.
7
Press the DSPL/SET Key.
The display shown on the left appears (phase V).
8
Press the LEFT or RIGHT Key to display the phase-V offset
amount.
9
Press the UP or DOWN Key to adjust the offset. Carefully
adjust the offset while monitoring the torque reference monitor
signal.
10
Press the LEFT or RIGHT Key.
The display shown on the left appears.
11
When the offset adjustment completes, press the DATA/
ENTER Key.
The display returns to the utility function mode display Fn00F.
IMPORTANT
DSPL
SET
(DSPL/SET Key)
DATA
ENTER
(DATA/ENTER
Key)
DSPL
SET
(DSPL/SET Key)
DATA
ENTER
(DATA/ENTER
Key)