YASKAWA SGD7S series Product Manual page 404

• For Rotary Servomotors
Speed Ripple Compensation Enable Speed
Setting Range
Pn427
0 to 10,000
• For Linear Servomotors
Speed Ripple Compensation Enable Speed
Pn49F Setting Range
0 to 10,000
peed reference/
feedback peed
etting of Pn427
or Pn49F
(Ripple
Compen ation
Enable peed)
Ripple
Di abled
compen ation
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
Setting Unit Default Setting
-1
1 min
Setting Unit Default Setting
1 mm/s
Enabled Di abled
Description
Detect A.942 alarms.
Do not detect A.942 alarms.
8.11 Speed Ripple Compensation
8.11.3 Setting Parameters
Speed Position
When Enabled
0 Immediately
Speed Position
When Enabled
0 Immediately
Time
Enabled Di abled
When
Enabled
restart
Torque
Classification
Tuning
Torque
Classification
Tuning
Classifi-
cation
After
Setup
8
8-65