(H) Protective function parameter
Under V/F control or Advanced magnetic flux vector control, if the output frequency drops to
0.5 Hz due to the stall prevention operation and this state continues for 3 s, a fault indication
(E.OLT) appears, and the inverter output is shut off. This operation is activated regardless of the
Pr. 874 setting.
● Do not set the stall prevention operation current too low.
Doing so will reduce the generated torque.
● Be sure to perform a test run.
Stall prevention operation during acceleration may extend the acceleration time.
Stall prevention operation during constant-speed operation may cause sudden speed
Stall prevention operation during deceleration may extend the deceleration time.
Parameters referred to
Pr. 178 to Pr. 189
Pr. 190 to Pr. 196
5 - 188
Analog input selection
(Input terminal function selection)
(Output terminal function selection)
Terminal 4 function assignment
Terminal 1 function assignment