Acceleration And Deceleration Pattern (Pr. 29) - Mitsubishi Electric FR-D720S SC EC Instruction Manual

Acceleration and deceleration
6.6.3

Acceleration and deceleration pattern (Pr. 29)

You can set the acceleration/deceleration pattern suitable for application.
Pr.
Name
No.
Acceleration/deceleration
29
pattern selection
The above parameter can be set when Pr. 160 = 0.
Linear acceleration/deceleration (Pr. 29 = 0, initial value)
For the inverter operation, the output frequency is made to change linearly (linear acceleration/
deceleration) to prevent the motor and inverter from excessive stress to reach the set frequency
during acceleration, deceleration, etc. when frequency changes. Linear acceleration/deceler-
ation has a uniform frequency/time slope (refer to Fig. 6-30).
Hz
fm
6 - 64
Initial Setting
Description
Value Range
0 Linear acceleration/deceleration
1 S-pattern acceleration/deceleration A
0
2 S-pattern acceleration/deceleration B
linear
Time
Parameters referred to
Fig. 6-30:
Characteristic for parameter 29 = 0
t
Parameter
Refer to
Section
3 Base frequency 6.4.1
7 Acceleration time 6.6.1
8 Deceleration time 6.6.1
20 Acceleration/ 6.6.1
deceleration refer-
ence frequency
I000015C