ABB ACS880 - Page 313

Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
- / real32Defines 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:
Linear ramp:
23.17 = 0 s
S-curve ramp:
23.17 > 0 s
Linear ramp:
23.16 = 0 s
Shape time
S-curve ramp:
23.16 > 0 s
Speed
Time
Deceleration:
Speed
Time
Linear ramp:
23.18 = 0 s
Linear ramp:
23.19 = 0 s
S-curve ramp:
23.18 > 0 s
S-curve ramp:
23.19 > 0 s
Shape time acc 123.16
10 = 1 s / 1000 = 1 sRamp shape at start of acceleration.0.000 ... 1800.000 s
Parameters 313