YASKAWA SGD7S Product Manual page 331

Speed reference/
feedback speed
Setting of Pn427
or Pn49F
(Ripple
Compensation
Enable Speed)
Ripple
Disabled
compensation
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
 
n. 0
(default setting)
Pn423
 
n. 1
Enabled Disabled
Description
Detect A.942 alarms.
Do not detect A.942 alarms.
8.11 Speed Ripple Compensation
8.11.3 Setting Parameters
Time
Enabled Disabled
When
Enabled
After
restart
Classifi-
cation
Setup
8
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