ABB ACS880 Firmware Manual page 313

No. Name / Range /
Selection
23.16 Shape time acc 1
0.000 ... 1800.000 s
Description
Defines the shape of the acceleration ramp at the
beginning of the acceleration.
0.000 s: Linear ramp. Suitable for steady acceleration
or deceleration and for slow ramps.
0.001...1000.000 s: S-curve ramp. S-curve ramps are
ideal for lifting applications. The S-curve consists of
symmetrical curves at both ends of the ramp and a
linear part in between.
Note: For safety reasons, shape times are not applied
to emergency stop ramps.
Acceleration:
Speed
Linear ramp:
23.16 = 0 s
Deceleration:
Speed
Linear ramp:
23.18 = 0 s
Linear ramp:
23.19 = 0 s
Ramp shape at start of acceleration.
Linear ramp:
23.17 = 0 s
Shape time
S-curve ramp:
23.17 > 0 s
S-curve ramp:
23.16 > 0 s
S-curve ramp:
23.18 > 0 s
Parameters 313
Def / Type
FbEq 16b / 32b
- / real32
Time
S-curve ramp:
23.19 > 0 s
Time
10 = 1 s / 1000 = 1 s