YASKAWA E-7S SERVOPACK SGD7S - Page 330

8.11 Speed Ripple Compensation
8.11.3 Setting Parameters
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8
Tuning
Speed Ripple Compensation Warnings
The speed ripple compensation value is specific to each Servomotor. If you replace the Servo-
motor while speed ripple compensation is enabled, an A.942 warning (Speed Ripple Compen-
sation Information Disagreement) will occur to warn you.
You can use any of the following methods to clear A.942.
• Reset the speed ripple compensation value on the SigmaWin+.
• Disable speed ripple compensation (Pn423 = n.0).
• Disable detection of A.942 (Pn423 = n.1).
Parameter Description
When
Enabled
Classifi-
cation
Pn423
n.0
(default setting)
Detect A.942 alarms.
After
restart
Setup
n.
1 Do not detect A.942 alarms.
Setting of Pn427
or Pn49F
(Ripple
Compensation
Enable Speed)
Time
Speed reference/
feedback speed
Disabled Enabled Disabled Enabled Disabled
Ripple
compensation