ABB DriveIT ACH550-01 User Manual page 229

ACH550 User's Manual
Code Description
2204 RAMP SHAPE 1
Selects the shape of the acceleration/deceleration ramp for ramp pair
1. See B in figure.
• Shape is defined as a ramp, unless additional time is specified here
to reach the maximum frequency. A longer time provides a softer
transition at each end of the slope. The shape becomes an s-curve.
• Rule of thumb: 1/5 is a suitable relation between the ramp shape
time and the acceleration ramp time.
0.0 =
LINEAR
ramp pair 1.
0.1...1000.0 =
s-curve acceleration/deceleration
ramps for ramp pair 1.
2205 ACCELER TIME 2
Sets the acceleration time (s) for zero to maximum frequency for ramp
pair 2. See 2002
2206 DECELER TIME 2
Sets the deceleration time for maximum frequency to zero for ramp
pair 2. See 2003
2207 RAMP SHAPE 2
Selects the shape of the acceleration/deceleration ramp for ramp pair
2. See 2004
Parameter listing and descriptions
– Specifies linear acceleration/deceleration ramps for
- – Specifies
S CURVE
1.
ACCELER TIME
1.
DECELER TIME
1.
RAMP SHAPE
Range
0=linear, 0.1...1000.0s
MAX
Linear
FREQ
MAX
S-curve
FREQ
A
A = 2202
ACCELERATION TIME
B = 2204
RAMP SHAPE
0.0...1800 s
0.0...1800 s
0=linear, 0.0...1000.0s
B (=0)
T
B
T
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