Acceleration And Deceleration - Mitsubishi Electric FR-D720S SC EC Instruction Manual

Parameter
6.6

Acceleration and deceleration

Purpose
Motor acceleration/deceleration time
setting
Starting frequency
Set acceleration/deceleration
pattern suitable for application
6.6.1 Acceleration and deceleration time (Pr. 7, Pr. 8, Pr. 20, Pr. 44, Pr. 45)
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.
Pr.
Name
No.
FR-D720S-008SC to
Acceleration
FR-D740-080SC or less
7
time
FR-D740-120SC and
FR-D720S-008SC to
FR-D740-080SC or less
Deceleration
8
time
FR-D740-120SC and
Acceleration/
deceleration
20
reference
frequency
FR-D720S-008SC to
Second accel-
FR-D740-080SC or less
44
eration/decel-
eration time
FR-D740-120SC and
Second decel-
45
eration time
The above parameters can be set when Pr. 160 = 0.
FR-D700 SC EC
Setting
Initial Value
Range
100SC, 5s
0–3600s
10s
160SC
100SC, 5s
0–3600s
10s
160SC
50Hz 1–400Hz
100SC, 5s
0–3600s
10s
160SC
0–3600s
9999
9999
Parameters that must be set
Acceleration/deceleration times
Starting frequency and start-time hold
Acceleration/deceleration pattern
Description
Set the motor acceleration
time.
Set the motor deceleration
time.
Set the frequency that will be
the basis of acceleration/decel-
eration time.
As acceleration/deceleration
time, set the frequency change
time from stop to Pr. 20.
Set the acceleration/decelera-
tion time when the RT signal is
on.
Set the deceleration time when
the RT signal is on.
Acceleration time = decelera-
tion time
Acceleration and deceleration
Refer to
Section
Pr. 7, Pr. 8, 6.6.1
Pr. 20, Pr. 44,
Pr. 45
Pr. 13, Pr. 571 6.6.2
Pr. 29 6.6.3
Parameters referred to
3 Base frequency
10 DC injection brake
operation frequency
29 Acceleration/
deceleration pattern
selection
125 Frequency setting
gain frequency
126 Frequency setting
gain frequency
178–182 Input terminal func-
tion selection
Refer to
Section
6.4.1
6.8.1
6.6.3
6.15.3
6.15.3
6.9.1
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