Yaskawa Large Capacity Sigma II Series - Manual (Page 269)

6.2 Applied Operation
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6
6.2.11 Adjusting the Motor Current Detection Offset
Motor current detection offset adjustment is performed at Yaskawa before shipping. Basi-
cally, the user need not perform this adjustment. Perform this adjustment only if highly accu-
rate adjustment is required for reducing torque ripple caused by current offset.
The following sections describe automatic and manual adjustment of the current detection
offset.
If this function, particularly manual adjustment, is executed carelessly, it may worsen the characteris-
tics.
„ Automatic Adjustment of the Motor Current Detection Offset
Follow the procedure below to perform automatic adjustment of the current detection offset.
Automatic adjustment is possible only with power supplied to the main circuits and with the servo
OFF.
Using the Hand-held Digital Operator
1. Press the DSPL/SET Key to select the auxiliary function mode.
2. Select the parameter Fn00E. Press the Left or Right Cursor Key to select the digit. Press
the Up or Down Cursor Key to change the number.
3. Press the DATA/ENTER Key. The following display will appear.
4. Press the DSPL/SET Key. The display will change as shown below and offset will be
automatically adjusted.
5. Press the DATA/ENTER Key to return to the auxiliary function mode display.
This completes the automatic adjustment of the motor current detection offset.
IMPORTANT
INFO
Flashing for
one second