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390
Speed Control
Section 10-5
W-series Acceleration/Deceleration Constants for Speed Control
The
Soft Start Acceleration Time
and
Soft Start Deceleration Time
are set
respectively as the acceleration time and deceleration time between speed 0
(speed command value for speed control: 0%) and the momentary maximum
rotation speed of the Servomotor (speed command value for speed control:
100%).
The acceleration time and deceleration time for the actual target speed are as
follows:
Note
The momentary maximum rotation speed depends on the Servomotor used.
Refer to the momentary maximum rotation speed for the Servomotor used.
The following values apply to W-series Servomotors.
3,000-r/min Servomotor (cylinder type or flat type): 5,000 r/min
1,000-r/min Servomotor: 2,000 r/min
1,500-r/min Servomotor (450 W to 7.5 kW): 3,000 r/min
1,500-r/min Servomotor (11 to 15 kW): 2,000 r/min
Option Command Value during Speed Control
When speed control is used, the torque limit and torque feed forward func-
tions can be applied during speed control by setting Servo Parameter
Torque
Limit Selection
(Pn521) when using G5-series Servo Drives, Servo Parameter
Tolque Limit Selection
(Pn003) when using G-series Servo Drives or Servo
Parameter
Torque Command Input Change
of
Function Selection Application
Switch 2
(Pn002.0) when using W-series Servo Drives and setting the Current
Limit Designation Bits and option command values in the Axis Operating Out-
put Memory Area.
Type
Parameter
No.
Parameter name
Unit
Setting
range
Data
length
Default
setting
---
Pn305
Soft start acceleration time
ms
0 to 10000
2
0
---
Pn306
Soft start deceleration time
ms
0 to 10000
2
0
Pn305
0
Actual acceleration time
Servomotor speed
+r/min
Actual deceleration time
Time
Pn306
Actual acceleration (deceleration) time =
×
Soft start acceleration (deceleration) time
Speed command value for speed control (r/min)
Momentary maximum rotation speed (r/min)
Momentary maximum
rotation speed (See note.)
Speed command value for
speed control
Summary of Contents for CJ1W-NC271 - 12-2009
Page 2: ......
Page 4: ...iv ...
Page 6: ...vi ...
Page 22: ...xxii ...
Page 58: ...30 Starting Operation Section 2 2 ...
Page 244: ...216 Axis Operating Input Memory Areas Section 4 8 ...
Page 264: ...236 Transferring Servo Parameters Section 5 3 ...
Page 396: ...368 Linear Interpolation Section 9 7 ...
Page 648: ...620 List of Error Codes Appendix D ...
Page 674: ...646 Additional Functions for the CJ1W NCF71 MA Appendix F ...
Page 684: ...656 Index ...
Page 686: ...658 Revision History ...