Stall Prevention Function And Current Limit Function (Pr. 156) - Mitsubishi Electric FR-E540-0.4K-EC Instruction Manual

The zero current detection level setting should not be too high, and the zero
current detection time setting should not be too long. Otherwise, the detection
signal may not be output when torque is not generated at a low output current.
To prevent the machine and equipment from resulting in hazardous conditions
by use of the zero current detection signal, install a safety backup such as an
emergency brake.
z
Stall prevention operation selection (Pr. 156)

4.2.40 Stall prevention function and current limit function (Pr. 156)

Pr. 156 " stall prevention operation
selection"
You can make settings to disable stall prevention caused by overcurrent and to disable
the inverter from an overcurrent trip if an excessive current occurs due to sudden load
variation or turning the inverter's output side ON-OFF (to disable the fast-response
current limit which limits the current).
Parameter Factory
Number Setting
156
CAUTION
Setting Range
0 0 to 31, 100
138
Related parameters
Pr. 22 "stall prevention operation level"
Pr. 23 "stall prevention operation level
compensation factor at double
speed"
PARAMETERS
4