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Setting of acceleration/deceleration time and acceleration/deceleration pattern
4
PARAMETERS
4.9 Setting of acceleration/deceleration time and acceleration/
deceleration pattern
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)
Purpose Parameter to set Refer to page
To set motor acceleration/
deceleration time
Acceleration/deceleration
times
Pr.7, Pr.8, Pr.20, Pr.44, Pr.45,
Pr.147, Pr.375, Pr.791, Pr.792
125
To set starting speed Starting speed Pr.13
128
To set acceleration/deceleration
pattern suitable for application
Acceleration/deceleration
pattern
Pr.29
129
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
number
Name
Initial
value
Setting range Description
7 Acceleration time
5s 0 to 360s Motor acceleration time.
8 Deceleration time
5s 0 to 360s Motor deceleration time.
20
Acceleration/deceleration
reference speed
3000r/min 12 to 4800r/min
Speed that will be the basis of acceleration/
deceleration time.
As acceleration/deceleration time, set the
frequency change time from stop to
Pr.20
.
44
Second acceleration/
deceleration time
5s 0 to 360s
Acceleration/deceleration time when the RT signal
is ON.
45 Second deceleration time
9999
0 to 360s Deceleration time when the RT signal is ON.
9999 Acceleration time = deceleration time
147
Acceleration/deceleration
time switching speed
9999
0 to 4800r/min
Speed when automatically switching to the
acceleration/deceleration time of
Pr.44
and
Pr.45
.
9999 No function
375
Faulty acceleration rate
detection level
9999
0 to 4800r/min/ms
When the acceleration rate of the motor rotation
speed has exceeded the set value, the
acceleration rate error (E.OA) occurs.
9999 Faulty acceleration rate detection is disabled.
791
Acceleration time in low-
speed range
9999
0 to 3600s
Acceleration time in the low-speed range (300r/
min or lower)
9999 The Pr.7 setting is used as the acceleration time.
792
Deceleration time in low-
speed range
9999
0 to 3600s
Deceleration time in the low-speed range (300r/
min or lower)
9999 The Pr.8 setting is used as the deceleration time.
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.