Parameters
(F) Setting of acceleration/deceleration time and acceleration/deceleration pattern
FR-A800
5 - 237
Setting multiple acceleration/deceleration times
(RT signal, X9 signal, Pr. 44, Pr. 45, Pr. 110, Pr. 111, 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". Pr.
110 and Pr. 111 are valid when the X9 signal is ON.
●
Even at the frequency lower than the Pr. 147 setting, turning ON the RT signal (X9 signal) will switch
the acceleration/deceleration time to the second (third) acceleration/deceleration time. The
priority of the signals and settings is X9 signal > RT signal > Pr. 147 setting.
●
To input the X9 signal, set "9" in any of Pr. 178 to Pr. 189 (input terminal function selection) to
assign the function to the terminal.
●
When "9999" is set in Pr. 45 and Pr. 111, the deceleration time becomes equal to the acceleration
time (Pr. 44, Pr. 110).
●
When Pr. 110 = "9999" is set, the third acceleration/deceleration function is disabled.
●
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. 5-93:
Setting of Pr. 147
I002554E
Fig. 5-86:
Changing the acceleration/deceleration time by switching the signals RT and X9
Control method
Switching frequency
V/F control
Output frequency
Advanced magnetic flux vector control
Output frequency before the slip compensation.
Real sensorless vector control,
PM sensorless vector control
Estimated speed converted as frequency
Vector control
Encoder feedback control
Actual motor speed converted as frequency
Tab. 5-94:
Control method and switching frequency
Pr. 7
Output
frequency [Hz]
Set
frequency
Pr. 147 setting
RT signal
X9 signal
ON
ON
Pr. 44
Pr. 110
Pr. 111 Pr. 44
Pr. 45
Pr. 8
Pr. 7
Pr. 44
Pr. 44
Pr. 45
Pr. 8
Time
Summary of Contents for FR-A800
Page 2: ......
Page 4: ......
Page 22: ...Contents XVIII ...
Page 30: ...Related manuals Introduction 1 8 ...
Page 122: ...Connection of stand alone option units Installation and wiring 2 92 ...
Page 180: ...Basic operation procedure JOG operation Basic operation 4 32 ...
Page 934: ...Check first when you have a trouble Protective functions 6 46 ...
Page 1031: ...Appendix EC Declarations of Conformity FR A800 A 47 ...
Page 1032: ...EC Declarations of Conformity Appendix A 48 ...
Page 1033: ...Appendix EC Declarations of Conformity FR A800 A 49 ...
Page 1034: ...EC Declarations of Conformity Appendix A 50 ...
Page 1035: ...Appendix EC Declarations of Conformity FR A800 A 51 A 5 2 EMC Directive ...
Page 1036: ...EC Declarations of Conformity Appendix A 52 ...
Page 1037: ...Appendix EC Declarations of Conformity FR A800 A 53 ...
Page 1038: ...EC Declarations of Conformity Appendix A 54 ...
Page 1039: ...Appendix EC Declarations of Conformity FR A800 A 55 ...
Page 1040: ...EC Declarations of Conformity Appendix A 56 ...
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