Manual Adjustment - YASKAWA SGD7S-****20A Series Product Manual

6.12.2

Manual Adjustment

You can use this function if you automatically adjust the motor current detection signal offset
and the torque ripple is still too large.
If the offset is incorrectly adjusted with this function, the Servomotor characteristics may be
adversely affected.
Observe the following precautions when you manually adjust the offset.
• Operate the Servomotor at a speed of approximately 100 min
Important
• Adjust the offset while monitoring the torque reference with the analog monitor until the ripple is
minimized.
• Adjust the offsets for the phase-U current and phase-V current of the Servomotor so that they
are balanced. Alternately adjust both offsets several times.
The offset does not use a parameter, so it will not change even if the parameter settings are
Information
initialized.
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
SigmaWin+
Function
Fn00F
− −
Setup Adjust Offset
Adjust the Motor Current
Detection Signal Offsets
6.12 Adjusting the Motor Current Detection Signal Offset
-1
.
Operating Procedure Reference
Σ-7-Series Digital Operator Operating Manual (Man-
ual No.: SIEP S800001 33)
Operating Procedure on page 6-58

6.12.2 Manual Adjustment

6-57
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