Mitsubishi Electric FR-E700 Instruction Manual page 183

Parameter
Block diagram
Fig. 6-5: Stall prevention 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.
Fig. 6-6: Stall prevention operation example
NOTE
If an overload status lasts long, an inverter trip (e.g. electronic thermal relay function
"E.THM") may occur.
FR-E700 EC
Pr. 22
Pr. 48
Pr. 22
OL
Adjust the output torque (current) of the motor
Stall prevention operation invalid
Stall prevention operation level
Output frequency
Pr. 23, Pr. 66
Output current
Output frequency
Constant speed
I001883E
Time
I001120E
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