Mitsubishi Electric FR-E700 Instruction Manual page 199

Parameter
Block diagram
Fig. 6-5:
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 preven-
tion operation will be performed. Normally set this parameter to 150% (initial value).
Stall prevention operation stops acceleration (makes deceleration) during acceleration, makes de-
celeration during constant speed, and stops deceleration (makes acceleration) during deceleration.
When stall prevention operation is performed, the OL signal is output.
Fig. 6-6:
NOTE
If an overload status lasts long, an inverter trip (e.g. electronic thermal relay function "E.THM") may
occur.
FR-E700 SC EC/ENE
RT = OFF
Pr. 22
RT = ON
Pr. 48
Stall prevention block diagram
Pr. 22
OL
Stall prevention operation example
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
6 - 45