Setting Of Acceleration/Deceleration Time And Acceleration/ Deceleration Pattern; Setting Of The Acceleration And Deceleration Time (Pr.7, Pr.8, Pr.20, Pr.44, Pr.45, Pr.147, Pr.375, Pr.791, Pr.792) - Mitsubishi Electric FR-E700EX Instruction Manual

Setting of acceleration/deceleration time and acceleration/deceleration pattern
4.9 Setting of acceleration/deceleration time and acceleration/
deceleration pattern
Purpose
To set motor acceleration/
deceleration time
To set starting speed
To set acceleration/deceleration
pattern suitable for application
4.9.1 Setting of the acceleration and deceleration time
(Pr.7, Pr.8, Pr.20, Pr.44, Pr.45, Pr.147, Pr.375, Pr.791, Pr.792)
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.
Parameter
Name
number
7 Acceleration time
8 Deceleration time
Acceleration/deceleration
20

reference speed
Second acceleration/
44

deceleration time
45  Second deceleration time
Acceleration/deceleration
147

time switching speed
Faulty acceleration rate
375
detection level
Acceleration time in low-
791
speed range
Deceleration time in low-
792
speed range

The above parameters can be set when Pr.160 Extended function display selection = "0". (Refer to page 182)

When a value exceeding 3000 r/min is set, the rotation speed will be limited at 3000 r/min.
Also, when an S-PM geared motor is used, the maximum setting value differs depending on the drive unit capacity. (0.2 to 2.2K: 12000 r/min, 3.7K: 8000
r/min)

600 r/min or lower when an MM-GKR13 motor is driven.
Parameter to set
Acceleration/deceleration
times
Starting speed
Acceleration/deceleration
pattern
Initial
Setting range
value
5s 0 to 360s
5s 0 to 360s
3000r/min 12 to 4800r/min
5s 0 to 360s
0 to 360s
9999
9999
0 to 4800r/min
9999
9999
0 to 4800r/min/ms
9999
9999
0 to 3600s
9999
9999
0 to 3600s
9999
9999
Pr.7, Pr.8, Pr.20, Pr.44, Pr.45,
Pr.147, Pr.375, Pr.791, Pr.792
Pr.13
Pr.29
Description
Motor acceleration time.
Motor deceleration time.
Speed that will be the basis of acceleration/
deceleration time.
As acceleration/deceleration time, set the
frequency change time from stop to Pr.20.
Acceleration/deceleration time when the RT signal
is ON.
Deceleration time when the RT signal is ON.
Acceleration time = deceleration time
Speed when automatically switching to the
acceleration/deceleration time of Pr.44 and Pr.45.
No function
When the acceleration rate of the motor rotation
speed has exceeded the set value, the
acceleration rate error (E.OA) occurs.
Faulty acceleration rate detection is disabled.
Acceleration time in the low-speed range (300r/
min or lower)
The Pr.7 setting is used as the acceleration time.
Deceleration time in the low-speed range (300r/
min or lower)
The Pr.8 setting is used as the deceleration time.
Refer to page
125
128
129
4
125