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27
Starting Operation
Section 2-2
The Servomotor starts rotating up to the target speed of 100,000 pulses/s and
stops at 500,000 pulses. The acceleration/deceleration speed depends on the
Servo Parameters set for the Servo Drive. When a W-series Servo Drive and
the FNY-NS115 are used together, the acceleration and deceleration speeds
are set in the Servo Parameters as follows:
In this operation example, the default settings are used for the acceleration/
deceleration constants. With the default settings, the acceleration/decelera-
tion movement uses a linear acceleration/deceleration waveform, and the
slope of the acceleration and deceleration is 1,000,000 pulses/s
2
.The target
speed is 100,000 pulses/s, so after starting, the motor accelerates up to the
target speed in 0.1 s, and decelerates to a stop from the target speed in 0.1 s.
The present position of each axis can be monitored in the Axis Operating
Input Memory Areas.
In this operation example, the Common Parameters are set so that the begin-
ning word of the Axis Operating Input Memory Area for axis 1 is allocated in
CIO 500. Therefore, the present position (feedback present position) for axis 1
is allocated in CIO 506 and CIO 507.
Parameter
No.
Parameter name
Default
Unit
Setting in this
example
Pn80A
First-step linear
acceleration con-
stant
100
10,000 command
units/s
2
Not used.
Pn80B
Second-step linear
acceleration con-
stant
100
10,000 command
units/s
2
1,000,000
pulses/s
2
Pn80C
Acceleration con-
stant switching
speed
0
100 command
units/s
Default settings
used.
Pn80D
First-step linear
deceleration con-
stant
100
10,000 command
units/s
2
Not used.
Pn80E
Second-step linear
deceleration con-
stant
100
10,000 command
units/s
2
1,000,000
pulses/s
2
Pn80F
Deceleration con-
stant switching
speed
0
100 command
units/s
Default settings
used.
Speed
Pn80B
(Second-step Linear Acceleration Constant)
Pn80C
(Acceleration Constant Switching Speed)
Pn80E
(Second-step Linear Deceleration Constant)
Pn80F
(Deceleration Constant Switching Speed)
In this operation example, the acceleration/deceleration constant switching
speed is 0. Therefore, from startup, the motor accelerates according to the
Second-step Linear Acceleration Constant and decelerates using the
Second-step Linear Deceleration Constant until stopping. The First-step
Acceleration/Deceleration Constants are not used.
Time
CIO 506
CIO 507
Feedback present position
(rightmost word)
Feedback present position (leftmost word)
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 ...