YASKAWA SGD7S Product Manual page 217

Preparations
Always check the following before you manually adjust the motor current detection signal off-
set.
• The parameters must not be write prohibited.
Applicable Tools
The following table lists the tools that you can use to manually adjust the offset and the applica-
ble tool functions.
Tool
Digital Operator Fn00F
Setup
SigmaWin+ Adjust the Motor Current
Detection Offset
Operating Procedure
Use the following procedure to manually adjust the motor current detection signal offset.
1.
Operate the motor at approximately 100 min
2.
Select Setup - Adjust Offset - Adjust the Motor Current Detection Offset. from the
menu bar of the Main Window of the SigmaWin+.
3.
Click the Continue Button.
4.
Click the Manual Adjustment Tab in the Adjust the Motor Current Detection Offset Dia-
log Box.
5.
Set the Channel Box in the Motor Current Detection Offset Area to U-phase.
6.
Use the +1 and -1 Buttons to adjust the offset for phase U.
Change the offset by about 10 in the direction that reduces the torque ripple.
Adjustment range: -512 to +511
7.
Set the Channel Box in the Motor Current Detection Offset Area to V-phase.
6.12 Adjusting the Motor Current Detection Signal Offset
Function
−
Adjust Offset -
-1
6.12.2 Manual Adjustment
Operating Procedure Reference
Σ-7-Series Digital Operator Operating Manual (Man-
ual No.: SIEP S800001 33)
Operating Procedure on page 6-31
.
6
6-31