Acceleration/Deceleration Pattern (Pr. 29) - Mitsubishi Electric FR-E500 Instruction Manual

4.2.12 Acceleration/deceleration pattern (Pr. 29)

Pr. 29 "acceleration/deceleration pattern"
Set the acceleration/deceleration pattern.
Parameter
Number
29
Set value 0
[Linear acceleration/deceleration]
<Setting>
Pr. 29 Setting Function
Linear
0 acceleration/
deceleration
S-shaped
acceleration/
1 deceleration
A
(Note)
S-shaped
acceleration/
2
deceleration
B
Note: For the acceleration/deceleration time, set the time required to reach the
"base frequency" in Pr. 3, not the "acceleration/deceleration reference
frequency" in Pr. 20. For details, refer to Pr. 7 and Pr. 8.
Factory Setting
Setting Range
0 0, 1, 2
[S-shaped
acceleration/deceleration A]
fb
Time
Linear acceleration/deceleration is made up/down to the
preset frequency (factory setting).
For machine tool spindles
This setting is used when it is necessary to make
acceleration/deceleration in a short time up to the base
frequency or higher speed range.
In this acceleration/deceleration pattern, fb (base frequency)
is always the inflection point of an S shape, and you can set
the acceleration/deceleration time according to the reduction
in motor torque in the base frequency or higher constant-
output operation range.
For prevention of cargo collapse on conveyor, etc.
This setting provides S-shaped acceleration/deceleration
from f2 (current frequency) to f1 (target frequency), easing
an acceleration/deceleration shock. This pattern has an
effect on the prevention of cargo collapse, etc.
Pr. 3 "base frequency"
Pr. 7 "acceleration time"
Pr. 8 "deceleration time"
Pr. 20 "acceleration/deceleration
Pr. 44 "second
Pr. 45 "second deceleration
Set value 1
Time
Description
86
PARAMETERS
Related parameters
reference frequency"
acceleration/deceleration time"
time"
Set value 2
[S-shaped
acceleration/deceleration B]
f1
f2
Time