YASKAWA Sigma-V Series User Manual

6 Adjustments
6.1.4 Safety Precautions on Adjustment of Servo Gains
6-10
Under these conditions, the following equation is used to calculate the maximum limit (Pn520).
If the acceleration/deceleration of the position reference exceeds the capacity of the servomotor, the servomo-
tor cannot perform at the requested speed, and the allowable level for position error will be increased as not to
satisfy these equations. If so, lower the level of the acceleration/deceleration for the position reference so that
the servomotor can perform at the requested speed or increase the excessive position error alarm level
(Pn520).
 Related Parameter
 Related Alarm
(4) Vibration Detection Function
Set the vibration detection function to an appropriate value with the vibration detection level initialization
(Fn01B). For details on how to set the vibration detection function, refer to 7.16 Vibration Detection Level
Initialization (Fn01B).
(5) Excessive Position Error Alarm Level at Servo ON
If position errors remain in the error counter when turning ON the servomotor power, the servomotor will
move and this movement will clear the counter of all position errors. Because the servomotor will move sud-
denly and unexpectedly, safety precautions are required. To prevent the servomotor from moving suddenly,
select the appropriate level for the excessive position error alarm level at servo ON (Pn526) to restrict opera-
tion of the servomotor.
 Related Parameters
Pn520 =
2621440 × 2
5242880 (The factory setting of Pn520)
×× 2×
6000
60
1048576
400/10
1
1
=
=
Rotation
Pn520
Excessive Position Error Alarm Level
Classification
Setting Range Setting Unit Factory Setting When Enabled
1 to 1073741823 1 reference unit 5242880 Immediately Setup
Alarm
Display
Alarm Name Meaning
A.d00 Position Error Overflow Position errors exceeded parameter Pn520.
Position
Pn526
Excessive Position Error Alarm Level at Servo ON
Classification
Setting Range Setting Unit Factory Setting When Enabled
1 to 1073741823 1 reference unit 5242880 Immediately Setup
Position
Pn528
Excessive Position Error Warning Level at Servo ON
Classification
Setting Range Setting Unit Factory Setting When Enabled
10 to 100 1% 100 Immediately Setup
Pn529
Speed Limit Level at Servo ON
Classification
Setting Range Setting Unit Factory Setting When Enabled
0 to 10000
1 min
-1
10000 Immediately Setup
Position
Position

YASKAWA Sigma-V Series Specifications

General

Brand	YASKAWA
Model	Sigma-V Series
Category	Servo Drives
Language	English