Estun ETS Series - Soft Start; Speed Reference Filter Time Constant

ETS Series AC Servo User's Manual
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4.5.2 Soft Start
The soft start function converts the stepwise speed reference inside the servo drive to a consistent rate of acceleration
and deceleration.
Pn310 can be used to select the soft start form:
0: Slope; 1: S curve; 2: 1
st
-order filter; 3: 2
nd
-order filter
Pn306
Soft Start Acceleration Time
Setting Range
Setting Unit
Factory Setting
Setting Validation
0～10000
1ms
0
Immediately
Pn307
Soft Start Deceleration Time
Setting Range
Setting Unit
Factory Setting
Setting Validation
0～10000
1ms
0
Immediately
The soft start function enables smooth speed control when inputting a stepwise speed reference or when selecting
internally set speeds. Set both Pn306 and Pn307 to “0” for normal speed control.
Set these parameters as follows:
·Pn306：The time interval from the time the servomotor starts until the servomotor is 1000rpm.
·Pn307：The time interval from the time the servomotor is 1000rpm until it stops.
Before soft start
After soft start
Servomotor maximum speed
Pn306
Pn307
4.5.3 Speed Reference Filter Time Constant
Pn308
Speed Reference Filter Time Constant
Setting Range
Setting Unit
Factory Setting
Setting Validation
0～10000
1ms
0
Immediately
This smooths the speed reference by applying a 1
st
–order delay filter to the analog speed reference (V-REF) input. A
value that is too large, however, will decrease response.
Speed
Speed
Speed