6 -30 Preventing the Motor from Stalling During Acceleration (Stall PreventionDuring Acceleration Function)The Stall Prevention During Acceleration function prevents the motor from stalling if a heavy load is placedon the motor, or sudden rapid acceleration is performed.If you set L3-01 to 1 (enabled) and the Inverter output current exceeds the -15% level of the set value in L3-02, the acceleration rate will begin to slow down. When L3-02 is exceeded, acceleration will stop.If you set L3-01 to 2 (optimum adjustment), the motor current accelerates to the value set in L3-02. With thissetting, the acceleration time setting is ignored.Related Parameters* C6-01=1: 120%, C6-01=0: 150%Con-stantNumberName Description SettingRangeFactorySettingChangeduringOpera-tionControl Methods MEMOBUSRegis-terV/fV/fwithPGOpenLoopVec-torFluxVec-torL3-01Stall preven-tion selectionduring accel0: Disabled (Acceleration asset. With a heavy load, themotor may stall.)1: Enabled (Accelerationstopped when L3-02 level isexceeded. Acceleration startsagain when the current isreturned.)2: Intelligent acceleration mode(Using the L3-02 level as abasis, acceleration isautomatically adjusted. Setacceleration time isdisregarded.)0 to 2 1 No A A A No 48FHL3-02Stall preven-tion level dur-ing accelEffective when L3-01 is set to 1or 2.Set as a percentage of Inverterrated current.Usually setting is not necessary.The factory setting reduces the0 to 200120%*No A A A No 490H150%*L3-03Stall preven-tion limit dur-ing accelSets the lower limit for stall pre-vention during acceleration, as apercentage of the Inverter ratedcurrent, when operation is in thefrequency range above E1-06.Usually setting is not necessary.0 to 100 50% No A A A No 491H
