(F) Setting of acceleration/deceleration time and acceleration/deceleration pattern
Parameters
5 - 102
Setting multiple acceleration/deceleration times
(RT signal, Pr. 44, Pr. 45, Pr. 147)
●
Pr. 44 and Pr. 45 are valid when the RT signal is ON or when the output frequency is equal to or
higher than the frequency set in Pr. 147 "Acceleration/deceleration time switching frequency".
●
Even at the frequency lower than the Pr. 147 setting, turning ON the RT signal will switch the
acceleration/deceleration time to the second acceleration/deceleration time. The priority of the
signals and settings is RT signal > Pr. 147 setting.
●
When "9999" is set in Pr. 45, the deceleration time becomes equal to the acceleration time (Pr. 44).
●
If the Pr. 147 setting is equal to or less than the Pr. 10 "DC injection brake operation frequency" or
the Pr. 13 "Starting frequency" setting, the acceleration/deceleration time switches to the Pr. 44
(Pr. 45) when the output frequency reaches or exceeds the Pr. 10 or Pr. 13 setting.
●
Switching frequency for each control method
Pr. 147 setting
Acceleration/deceleration time
Description
9999 (initial value)
Pr. 7, Pr. 8
Acceleration/deceleration time is not
automatically changed.
0.00 Hz
Pr. 44, Pr. 45
Second acceleration/deceleration time is
applied from the start.
0.01 Hz ≤ Pr. 147
≤ set frequency
Output frequency < Pr. 147: Pr. 7, Pr. 8
Pr. 147 ≤ output frequency: Pr. 44, Pr. 45
Acceleration/deceleration time is
automatically changed.
Set frequency < Pr. 147
Pr. 7, Pr. 8
Not changed as the frequency has not
reached the switchover frequency.
Tab. 5-46:
Setting of Pr. 147
I003017E
Fig. 5-18:
Changing the acceleration/deceleration time by switching the RT signal
Control method
Switching frequency
V/F control
Output frequency
Advanced magnetic flux vector control
Output frequency before the slip compensation.
PM motor control
Estimated speed converted as frequency
Tab. 5-47:
Control method and switching frequency
Output frequency [Hz]
Set
frequency
RT signal
ON
Pr. 7
Pr. 44
Pr. 44
Pr. 45
Pr. 8
Time
Содержание FR-F800
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Страница 28: ...Related manuals Introduction 1 8 ...
Страница 104: ...Connection of stand alone option units Installation and wiring 2 76 ...
Страница 162: ...Basic operation procedure JOG operation Basic operation 4 32 ...
Страница 720: ...Checking parameters changed from their initial values Initial value change list Parameters 5 558 ...
Страница 780: ...Measurement of main circuit voltages currents and powers Precautions for maintenance and inspection 7 20 ...
Страница 806: ...Outline dimension drawings Specifications 8 26 ...
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