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Sigma II User's Manual
7.2.11 Adjusting the Motor Current Detection Offset
Motor current detection offset adjustment is performed at Yaskawa before shipping.
Normally, the user does not need to perform this adjustment. Make this adjustment
only if highly accurate adjustment is required to reduce torque ripple caused by cur-
rent offset.
The following sections describe automatic and manual adjustment of the current
Note: If this function, particularly manual adjustment, is executed carelessly, it may degrade the perfor-
mance of the servo drive.
T
Automatic Adjustment of the Motor Current Detection Offset
Follow the procedure below to perform automatic adjustment of the current detec-
tion offset.
Note: 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 Arrow
Press the Left Arrow
3. Press the DATA/ENTER key, and the display will be as shown below.
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.
or Right Arrow
key to select the digit.
or Right Arrow
key to change the value.
Flashing
for one
second
7-50
Chapter 7: Using the Digital Operator
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