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-E720-0.1 K 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 157).
Parameter
Name
Number
7 Acceleration time
8 Deceleration time
Acceleration/
20 ∗1
deceleration
reference frequency
Acceleration/
21 ∗1
deceleration time
increments
Second acceleration/
44 ∗1
deceleration time
Second deceleration
45 ∗1
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 183)
∗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 324 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 5s
5.5K, 7.5K 10s
11K, 15K 15s
3.7K or less 5s
5.5K, 7.5K 10s
11K, 15K 15s
60Hz
0
3.7K or less 5s
5.5K, 7.5K 10s
11K, 15K 15s
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
Description
Range
0 to 3600/
Motor acceleration time.
360s ∗2
0 to 3600/
Motor deceleration time.
360s ∗2
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
0 to 3600/ Acceleration/deceleration time when the RT
360s ∗2
signal is ON.
0 to 3600/
Deceleration time when the RT signal is ON.
360s ∗2
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
105
108
109
110
Increments and setting
range of acceleration/
deceleration time
setting can be changed.
4
105