IMPULSE•VG+ Series 3 Instruction Manual – 07/25/05
5-51
S-Curve Acceleration/Deceleration
A S-Curve pattern is used to reduce shock and provide smooth transitions during machine
acceleration and deceleration. S-Curve characteristic time is the time from the output frequency to
the set accel/decel time. See S-Curve Characteristic timing diagrams below and on the following
page.
The figure below shows FWD/REV run switching during deceleration to stop. The S-curve function
will add time to the acceleration and deceleration. Time to accelerate from the minimum frequency
to the maximum frequency (total acceleration) = B5-01 + (D9-01 + D9-02)/2.
Figure 5-30: S-Curve Characteristics–FWD/REV Operation
Parameter
Code
Display
Function
Range
Initial Value
Access
Level
D9-01*
S-Crv Acc @ Start
Sets S-Curve time at Accel
start
0.00–2.50 sec
−
Adv
D9-02*
S-Crv Acc @ End
Sets S-Curve time at Accel
end
0.00-2.50 sec
−
Adv
D9-03*
S-Crv Dec @ Start
Sets S-Curve time Decel start 0.00–2.50 sec
−
Adv
D9-04
S-Crv Dec @ End
Sets S-Curve time at Decel
end
0.00–2.50 sec
0.20
Adv
*Initial value is determined by X-Press Programming (Table 4.1 to 4.2).
C A U T I O N
CAUTION
Accel/Decel times will be extended.
Frequency
Output
Run(FWD)
Command
Run(REV)
Command
D9-01
D9-02
D9-03
D9-04
D9-01
D9-02
D9-03
D9-04
DC Injection Braking
Time at Stop
D1-04
Содержание IMPULSE VG+ Series 3
Страница 1: ...Software 8001 X July 2005 Part Number 140 10257 Copyright 2005 Magnetek Instruction Manual...
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Страница 14: ...c h a p t e r 2 Installation...
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