Mitsubishi Electric F700 User Manual

91
Setting of acceleration/deceleration time
and acceleration/deceleration pattern
4
PARAMETERS
4.7 Setting of acceleration/deceleration time and
acceleration/deceleration pattern
4.7.1 Setting of the acceleration and deceleration time (Pr.7, Pr.8, Pr.20, Pr.21, Pr.44, Pr.45)
Purpose Parameter that must be set Refer to page
Motor acceleration/deceleration time
setting
Acceleration/deceleration times
Pr.7, Pr.8, Pr.20, Pr.21,
Pr.44, Pr.45
91
Starting frequency
Starting frequency and start-
time hold
Pr.13, Pr.571 93
Set acceleration/deceleration pattern
suitable for application
Acceleration/deceleration
pattern and back lash measures
Pr.29, Pr.140 to Pr.143 94
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 126).
Parameter
Number
Name Initial Value Setting Range Description
7 Acceleration time
7.5K or less
5s
0 to 3600/ 360s
*2 Set the motor acceleration time.
11K or more
15s
8 Deceleration time
7.5K or less
10s
0 to 3600/ 360s
*2 Set the motor deceleration time.
11K or more
30s
20
*1
Acceleration/
deceleration
reference frequency
60Hz 1 to 400Hz
Set the frequency that will be the basis of
acceleration/deceleration time.
As acceleration/deceleration time, set the
frequency change time from stop to Pr. 20.
21
*1
Acceleration/
deceleration time
increments
0
0
Increments: 0.1s
Range: 0 to 3600s
Increments and
setting range of
acceleration/
deceleration time
setting can be
changed.
1
Increments: 0.01s
Range: 0 to 360s
44
*1
Second
acceleration/
deceleration time
5s 0 to 3600/360s
*2
Set the acceleration/deceleration time
when the RT signal is on.
45
*1
Second
deceleration time
9999
0 to 3600/360s
*2
Set the deceleration time when the RT
signal is on.
9999 Acceleration time = deceleration time
*1 The parameters can be set when Pr. 160 User group read selection = "0" (Refer to page 156)
*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".
(1) Acceleration time setting (Pr.7, Pr.20)
⋅ Use Pr. 7 Acceleration time to set the acceleration time required to reach Pr.
20 Acceleration/deceleration reference frequency from 0Hz.
⋅ Set the acceleration time according to the following formula.
Example) When Pr. 20 = 60Hz (initial value), Pr. 13 = 0.5Hz, and
acceleration can be made up to the maximum operating
frequency of 50Hz in 10s
Acceleration
time setting
=
Pr.20
×
Acceleration time from stop to
maximum operating frequency
Maximum operating
frequency - Pr. 13
Running
frequency
Acceleration
time
Deceleration
time
Time
Pr.20
Pr.7
Pr.8
Output frequency
(Hz)
(60Hz)
Pr.7 =
60Hz
×
10s 12.1s
50Hz - 0.5Hz

Mitsubishi Electric F700 Specifications

General

Brand	Mitsubishi Electric
Model	F700
Category	Inverter
Language	English