Setting Of Acceleration/Deceleration Time And Acceleration/ Deceleration Pattern; Setting Of The Acceleration And Deceleration Time (Pr. 7, Pr. 8, Pr. 20, Pr. 21, Pr. 44, Pr. 45, Pr. 147) - Mitsubishi Electric FR-E720-0.1K(SC) Instruction Manual

Setting of acceleration/deceleration time and acceleration/ deceleration pattern

4.8 Setting of acceleration/deceleration time and acceleration/
deceleration pattern
Purpose
Motor acceleration/deceleration
time setting
Starting frequency
Set acceleration/deceleration
pattern suitable for application
Automatically set optimum
acceleration/deceleration time.
4.8.1 Setting of the acceleration and deceleration time
(Pr. 7, Pr. 8, Pr. 20, Pr. 21, Pr. 44, Pr. 45, Pr. 147)
Used to set motor acceleration/deceleration time.
Set a larger value for a slower speed increase/decrease or a smaller value for a faster speed increase/decrease.
For the acceleration time at automatic restart after instantaneous power failure, refer to Pr. 611 Acceleration time at a
restart (page 162).
Parameter
Name
Number
7 Acceleration time
8 Deceleration time
Acceleration/
deceleration
20 ∗1
reference
frequency
Acceleration/
21 ∗1
deceleration time
increments
Second
44 ∗1
acceleration/
deceleration time
Second
45 ∗1
deceleration time
Acceleration/
147∗1
deceleration time
switching
frequency
∗1
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 188)
∗2
Depends on the Pr. 21 Acceleration/deceleration time increments setting. The initial value for the setting range is "0 to 3600s" and the setting increments is "0.1s".
............. Specifications differ according to the date assembled. Refer to page 338 to check the SERIAL number.
Parameter that should be Set
Acceleration/deceleration
times
Starting frequency and
start-time hold
Acceleration/deceleration
pattern
Automatic acceleration/
deceleration
Initial Value
3.7K or less
5.5K, 7.5K
11K, 15K
3.7K or less
5.5K, 7.5K
11K, 15K
60Hz
0
3.7K or less
5.5K, 7.5K
11K, 15K
9999
9999
Pr. 7, Pr. 8, Pr. 20, Pr. 21, Pr. 44,
Pr. 45, Pr. 147
Pr. 13, Pr. 571
Pr. 29
Pr. 61 to Pr. 63, Pr. 292
Setting
Range
5s
0 to 3600/
10s Motor acceleration time.
360s ∗2
15s
5s
0 to 3600/
10s Motor deceleration time.
360s ∗2
15s
Frequency that will be the basis of
acceleration/deceleration time.
1 to 400Hz
As acceleration/deceleration time, set the
frequency change time from stop to Pr. 20.
Increments: 0.1s
0 Range: 0 to
3600s
Increments: 0.01s
1
Range: 0 to 360s
5s
0 to 3600/ Acceleration/deceleration time when the RT
10s
360s ∗2
signal is ON.
15s
0 to 3600/ Deceleration time when the RT signal is
360s ∗2
ON.
9999 Acceleration time = deceleration time
Frequency when automatically switching to
0 to 400Hz the acceleration/deceleration time of Pr. 44
and Pr. 45.
9999 No function
Refer to Page
109
112
113
114
Description
Increments and setting
range of acceleration/
deceleration time
setting can be
changed.
109
4