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APPLICATIONS OF Σ-SERIES PRODUCTS
3.5.1 Using the Soft Start Function
3.5
Running the Motor Smoothly
3
3.5.1 Using the Soft Start Function
Speed/Torque
114
This section explains how to run the servomotor smoothly.
3.5.1
Using the Soft Start Function
3.5.2
Using the Smoothing Function
3.5.3
Adjusting Gain
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3.5.4
Adjusting Offset
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3.5.5
Setting the Torque Reference Filter Time Constant
1) The soft start function adjusts progressive speed reference input inside the Servopack so
that acceleration and deceleration can be as constant as possible. To use this function,
set the following user constants.
SFSACC
Soft Start Time (Acceleration)
Cn-07
SFSDEC
Soft Start Time (Deceleration)
Cn-23
In the Servopack, a speed reference is multiplied
by the acceleration or deceleration value set in
Cn-07 or Cn-23 to provide speed control.
Smooth speed control can be achieved when pro-
gressive speed references are input or when con-
tact input speed control is used.
Set these user constants as follows.
Cn-07: Time interval from the time the motor starts until the maximum speed (4500
r/min) is reached
Cn-23: Time interval from the time the motor is running at the maximum speed (4500
r/min) until it stops
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . .
Unit:
Setting
Factory
ms
Range:
Setting:
0 to
0
10000
Unit:
Setting
Factory
ms
Range:
Setting:
0 to
0
10000
Speed
reference
Servopack
internal speed
reference
114
115
115
116
116
For Speed/Torque
Control Only
For Speed/Torque
Control Only
Soft start
Cn-07: Set this time interval.
Cn-23: Set this time interval.
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Troubleshooting
