Parameters
(F) Setting of acceleration/deceleration time and acceleration/deceleration pattern
FR-A800
5 - 243
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 stop status.
●
Set the acceleration time according to the following formula.
Acceleration time setting
=
Pr. 20
×
Acceleration time from stop status to maximum frequency
(Maximum frequency – Pr. 13)
Example
For example, the following calculation is performed to find the setting value for Pr. 7 when increas-
ing the output frequency to the maximum frequency of 50 Hz in 10 s with Pr. 20 = "60 Hz (initial
value)" and Pr. 13 = "0.5 Hz".
Pr. 7 = 60 Hz × 10 s / (50 Hz - 0.5 Hz)
≈
12.1 s
Fig. 5-86:
Acceleration/deceleration time
I002553E
O
utput
fr
eq
uenc
y
(H
z)
Running
frequency
Time
Pr. 8
Pr. 45
Pr. 111
Pr. 7
Pr. 44
Pr. 110
Deceleration
time
Acceleration
time
Pr. 20
(60 Hz/50 Hz)
Содержание FR-A820-00046 (0.4K)
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Страница 144: ...System configuration for Ethernet communication FR A800 E Installation and wiring 2 114 ...
Страница 202: ...Basic operation procedure JOG operation Basic operation 4 32 ...
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Страница 1110: ...Measurement of main circuit voltages currents and powers Precautions for maintenance and inspection 7 20 ...
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