ABB RCNA-01 Manual de usuario Pagina 227

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Parameter listing and descriptions 223
ACH550-01 User's Manual
2204 RAMP SHAPE 1 0=LINEAR, 0.1…1000.0 s
Selects the shape of the acceleration/
deceleration ramp for ramp pair 1.
See B in the 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 – Specifies linear
acceleration/deceleration ramps for
ramp pair 1.
0.1…1000.0 – Specifies s-curve
acceleration/deceleration ramps for
ramp pair 1.
2205 ACCELER TIME 2 0.0…1800 s
Sets the acceleration time for zero to maximum frequency for ramp
pair 2.
•See 2202
ACCELER TIME 1.
2206 DECELER TIME 2 20.0…1800 s
Sets the deceleration time for maximum frequency to zero for ramp
pair 2.
•See 2203
DECELER TIME 1.
2207 RAMP SHAPE 2 0=LINEAR, 0.0…1000.0 s
Selects the shape of the acceleration/deceleration ramp for ramp pair 2.
•See 2204
RAMP SHAPE 1.
2208 EMERG DEC TIME 0.0…1800 s
Sets the deceleration time for maximum frequency to zero for an
emergency.
See parameter 2109
EMERG STOP SEL.
Ramp is linear.
Code Description Range
FREQ
MAX
FREQ
Linear
S-curve
A
A = 2202 ACCELERATION TIME
B
B (=0)
B = 2204 RAMP SHAPE
MAX
T
T
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