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. 110, Pr. 111, Pr. 147) - Mitsubishi Electric FR-A720-0.4K Instruction Manual

Setting of acceleration/deceleration time
and acceleration/deceleration pattern
4.12 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 appropriate
acceleration/deceleration time
4.12.1 Setting of the acceleration and deceleration time (Pr. 7, Pr. 8, Pr. 20, Pr. 21,
Pr. 44, Pr. 45, Pr. 110, Pr. 111, Pr. 147)
Use the following parameters 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 266).
Parameter
Name
Number
7 Acceleration time
8 Deceleration time
Acceleration/
20 deceleration
reference frequency
Acceleration/
21 deceleration time
increments
Second
44 acceleration/
deceleration time
Second
45
deceleration time
Third acceleration/
110
deceleration time
Third deceleration
111
time
Acceleration/
147
deceleration time
switching
frequency
*1 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 484 to check the SERIAL number.
172
Parameter that must be Set
Acceleration/deceleration time
Starting frequency and start-
time hold
Acceleration/deceleration
pattern and backlash measures
Automatic acceleration/
deceleration
Initial Value
7.5K or lower 5s
11K or higher 15s
7.5K or lower 5s
11K or higher 15s
60Hz
0
5s
9999
9999
9999
9999
Pr. 7, Pr. 8, Pr. 20, Pr. 21,
Pr. 44, Pr. 45, Pr. 110, Pr. 111
Pr. 13, Pr. 571
Pr. 29, Pr. 140 to Pr. 143,
Pr. 380 to Pr. 383,
Pr. 516 to Pr. 519
Pr. 61 to Pr. 63, Pr. 292
Setting Range
0 to 3600/360s Set the motor acceleration time.
*1
0 to 3600/360s Set the motor deceleration time.
*1
Set the 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
Set the acceleration/deceleration time when
0 to 3600/360s
*1
the RT signal is ON.
Set the deceleration time when the RT
0 to 3600/360s
*1
signal is ON.
9999 Acceleration time = deceleration time
Set the acceleration/deceleration time when
0 to 3600/360s
*1
the X9 signal is ON.
Without the third acceleration/deceleration
9999
function.
Set the deceleration time when the X9
0 to 3600/360s
*1
signal is ON.
9999 Acceleration time = deceleration time
The frequency where the acceleration/
0 to 400Hz deceleration time switches to the time set in
Pr. 44 and Pr. 45.
9999 No function
Refer to Page
172
175
176
180
Description
Increments and setting
range of acceleration/
deceleration time
setting can be
changed.