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Acceleration/deceleration Pattern - Mitsubishi Electric FR-F820-00046 Instruction Manual

Fr-f800 series.
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NOTE
• The reference frequency during acceleration/deceleration depends on the setting of Pr.29 Acceleration/deceleration pattern
selection. (Refer to
• The RT signal can be assigned to an input terminal by setting Pr.178 to Pr.189 (Input terminal function selection). Changing
the terminal assignment may affect other functions. Set parameters after confirming the function of each terminal.
• The RT signal is the Second function selection signal. The RT signal also enables other second functions. (Refer to
• The RT signal is assigned to terminal RT in the initial status. Set "3" in one of Pr.178 to Pr.189 (Input terminal function
selection) to assign the RT signal to another terminal.
 Setting the acceleration/deceleration time in the low-speed range (Pr.791,
Pr.792)
• If torque is required in the low-speed range (less than 10% of the rated motor frequency) under PM motor control, set a
value larger than the setting of Pr.7 Acceleration time (Pr.8 Deceleration time) in Pr.791 Acceleration time in low-
speed range (Pr.792 Deceleration time in low-speed range) so that the mild acceleration/deceleration is performed in
the low-speed range. (When the RT signal is turned ON, the second acceleration/deceleration time is prioritized.)
Acceleration time
in low-speed range
Slope set by Pr. 791
Acceleration time
Slope set by Pr.7
NOTE
• Set Pr.791 (Pr.792) to a value larger than the Pr.7 (Pr.8) setting. If a value smaller than Pr.7 (Pr.8) is set in Pr.791 (Pr.792),
the Pr.791 (Pr.792) setting is regarded as the same setting as the Pr.7 (Pr.8) setting.
• Refer to
page 615
Parameters referred to
Pr.3 Base
frequencypage 528
Pr.10 DC injection brake operation
Pr.29 Acceleration/deceleration pattern
Pr.125, Pr.126 (frequency setting gain
Pr.178 to Pr.189 (Input terminal function
Pr.264 Power-failure deceleration time 1, Pr.265 Power-failure deceleration time
5.5.2

Acceleration/deceleration pattern

The acceleration/deceleration pattern can be set according to the application.
In addition, the backlash measures that stop acceleration/deceleration by the frequency or time set with parameters at
acceleration/deceleration can be set.
Pr.
Name
29
Acceleration/deceleration pattern
F100
selection
140
Backlash acceleration stopping
F200
frequency
141
Backlash acceleration stopping
F201
time
142
Backlash deceleration stopping
F202
frequency
143
Backlash deceleration stopping
F203
time
page
219.)
Deceleration time
in low-speed range
Slope set by Pr.792
Deceleration time
Slope set by Pr.8
for the rated motor frequency of the MM-EFS or MM-THE4 motor.
frequencypage 535
selectionpage 219
frequency)page 339
selection)page 355
Initial
Setting range
value
0
1
0
2
3
6
1 Hz
0 to 590 Hz
0.5 s
0 to 360 s
1 Hz
0 to 590 Hz
0.5 s
0 to 360 s
5.5 (F) Setting of acceleration/deceleration time and acceleration/deceleration pattern
Low-speed range
(rated motor frequency/10)
Time
2page 458
Linear acceleration/deceleration
S-pattern acceleration/deceleration A
S-pattern acceleration/deceleration B
Backlash measure
Variable-torque acceleration/deceleration
Set the stopping frequency and time during backlash
measures.
Valid by backlash measures (Pr.29 = "3").
page
358.)
Description
5. PARAMETERS
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