Parameters
Real sensorless vector control, vector control, PM sensorless vector control adjustment
FR-A800
5 - 195
5.6.2 Excitation
ratio
The excitation ratio can be lowered to enhance efficiency for light loads. (Motor magnetic noise can
be reduced.)
Pr.
Name
Initial
value
Setting
range
Description
854
G217
Excitation ratio
100%
0 to 100%
Set an excitation ratio when there is no load.
I001543E
Fig. 5-75:
Setting of the excitation ratio
NOTES
When excitation ratio is reduced, output torque startup is less responsive.
The setting of Pr. 854 is invalid if Pr. 858 "Terminal 4 function assignment" or Pr. 868 "Terminal 1
function assignment" is set to "1" (flux command according to terminal).
Sensorless
Sensorless
Sensorless
Sensorless
Sensorless
Sensorless
Sensorless
Sensorless
Sensorless Vector
Vector
Vector
Excitation ratio [%]
100
(initial value)
Pr. 854
setting
0
100
Load [%]
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 ...
Страница 1090: ...Check first when you have a trouble Protective functions 6 50 ...
Страница 1110: ...Measurement of main circuit voltages currents and powers Precautions for maintenance and inspection 7 20 ...
Страница 1188: ...EC Declarations of Conformity Appendix A 48 A 7 EC Declarations of Conformity A 7 1 FR A820 FR A840 FR A842 series ...
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