Adjust the output torque (current) of the motor
Parameter
6 - 34
Block diagram
Setting of stall prevention operation level (Pr. 22)
Set in Pr. 22 the percentage of the output current to the rated inverter current at which stall pre-
vention operation will be performed. Normally set this parameter to 150% (initial value).
Stall prevention operation stops acceleration (makes deceleration) during acceleration, makes
deceleration during constant speed, and stops deceleration (makes acceleration) during de-
celeration.
When stall prevention operation is performed, the OL signal is output.
I001883E
Fig. 6-3:
Stall prevention block diagram
I001120E
Fig. 6-4:
Stall prevention operation example
NOTE
If an overload status lasts long, an inverter trip (e.g. electronic thermal relay function
"E.THM") may occur.
Pr. 22
Pr. 48
Stall prevention operation invalid
Stall prevention operation level
Output frequency
Pr. 23, Pr. 66
Pr. 22
Output current
Acce
ler
ation
De
celer
ation
Constant speed
Output frequency
OL
Time
Содержание FR-D720S SC EC
Страница 2: ......
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Страница 24: ...Description of the case Product checking and part identification 1 4 ...
Страница 108: ...Operation panel Operation 4 20 ...
Страница 436: ...Setting for the parameter unit and operation panel Parameter 6 286 ...
Страница 484: ...Measurements on the main circuit Maintenance and inspection 8 14 ...
Страница 504: ...Specification change Appendix A 20 ...
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Страница 510: ...Index Appendix A 24 ...
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