![background image](http://html1.mh-extra.com/html/omron/cj1w-nc271-12-2009/cj1w-nc271-12-2009_operation-manual_742348313.webp)
285
Acceleration and Deceleration Operations
Section 7-4
If the reversal mode operation using limit input is set, however, the stop opera-
tion when a limit input signal is input will depend on the Servo Drive setting.
For details on stop operations when using limit input signal inputs, refer to
7-5
Limit Input Operations
and
Reversal Mode Operation Using Limit Inputs
in
8-
2-4 Origin Search Operation
.
7-4-5
Acceleration and Deceleration Operations during Speed Control
When the speed control command is executed, the Servo Drive performs
stepped speed control from the present feedback speed to the target speed
specified in the speed command value for speed control. Apart from smoothly
increasing/decreasing the speed command value (for speed control) when
starting speed control, shock in acceleration/deceleration when performing
speed control can also be minimized by setting the Servo Parameters
Soft
Start Acceleration Time
(Pn312 for G5 Series, Pn058 for G Series and Pn305
for W Series) and
Soft Start Deceleration Time
(Pn313 for G5 Series, Pn059
for G Series and Pn306 for W Series) to create a trapezoidal speed curve.
For details on speed control, refer to
10-5 Speed Control
.
G5-series Acceleration/Deceleration Constants for Speed Control
G-series Acceleration/Deceleration Constants for Speed Control
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 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:
Parameter
No.
Parameter name
Unit
Setting
range
Parameter
size
Default
setting
Pn312
Soft start accelera-
tion time
×
2ms
0 to 5000
2
0
Pn313
Soft start decelera-
tion time
×
2ms
0 to 5000
2
0
Parameter
No.
Parameter name
Unit
Setting
range
Parameter
size
Default
setting
Pn058
Soft start accelera-
tion time
×
2ms
0 to 5000
2
0
Pn059
Soft start decelera-
tion time
×
2ms
0 to 5000
2
0
Parameter
No.
Parameter name
Unit
Setting
range
Parameter
size
Default
setting
Pn305
Soft start accelera-
tion time
ms
0 to 10000
2
0
Pn306
Soft start decelera-
tion time
ms
0 to 10000
2
0
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 ...