Group 22: Accel/Decel - ABB ACS 400 User Manual

Group 22: Accel/Decel

Two acceleration/deceleration ramp pairs can be used. If both ramp pairs are used, selection can be
made between these in run time through a digital input. The S curve of the ramps is adjustable.
Code Description
2201 ACC/DEC 1/2 SEL
Selects the source for the ramp pair selection signal.
0 =
NOT SEL
The first ramp pair is used (
1...5 = DI1...DI5
Ramp pair selection is done through a digital input (DI1 to DI5).
Digital input deactivated = Ramp pair 1 (
Digital input activated = Ramp pair 2 (
2202 ACCELER TIME 1
Ramp 1: time from zero to maximum frequency (0 -
2203 DECELER TIME 1
Ramp 1: time from maximum frequency to zero (
2204 ACCELER TIME 2
Ramp 2: time from zero to maximum frequency (0 -
2205 DECELER TIME 2
Ramp 2: time from maximum frequency to zero (
2206 RAMP SHAPE
Acceleration/deceleration ramp shape selection
0 =
LINEAR
1 =
FAST S CURVE
2 =
MEDIUM S CRV
3 =
SLOW S CURVE
MAXIMUM FREQ
Figure 42 Definition of acceleration/deceleration ramp time.
82
1/
ACCELER TIME DECELER TIME
ACCELER TIME
ACCELER TIME
Output frequency
Linear
1).
1/ 1) is used.
DECELER TIME
2/ 2) is used.
DECELER TIME
).
MAXIMUM FREQ
- 0).
MAXIMUM FREQ
).
MAXIMUM FREQ
- 0).
MAXIMUM FREQ
S curve
Ramp time
Time
ACS 400 User's Manual