YASKAWA SGD7S-1R9D Product Manual page 322

8.11 Speed Ripple Compensation
8.11.3 Setting Parameters
Speed reference/
feedback speed
Setting of Pn427
or Pn49F
(Ripple
Compensation
Enable Speed)
Ripple
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).
Pn423
(2423
hex)
8-64
Disabled Enabled
Parameter
 
n. 0
Detect A.942 alarms.
(default setting)
 
n. 1 Do not detect A.942 alarms.
Disabled Enabled
Description
Time
Disabled
When Classifi-
Enabled cation
After
Setup
restart