YASKAWA F7 User Manual

Also see for Varispeed f7: Connection manual Programming manual User guide Instruction manual User manual

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Parameters A - 34L8-07Output Phase LossProtectionPh Loss Out SelSelects the detection of output current open-phase.When applied motor capacity is too small for Drive capacity,output phase loss may be detected inadvertently. In this case, set to0.0: Disabled1: 1-phase Loss Detection2: 2/3-phase Loss Detection0 to 1 1 A A A AL8-09Output Ground FaultDetection SelectionGround Fault SelEnables and disables the Drive’s output ground fault detection.0: Disabled1: Enabled0 to 1 1 A A A AL8-10Heatsink Cooling FanOperation SelectionFan On/Off SelControls the heatsink cooling fan operation.0: Fan On-Run Mode - Fan will operate only when the Drive isrunning and for L8-11 seconds after RUN is removed.1: Fan Always On - Cooling fan operates whenever the Drive ispowered up.)0 to 1 0 A A A AL8-11Heatsink Cooling FanOperation Delay TimeFan Delay TimeThis parameter sets the delay time for the cooling fan turn off afterthe run command is removed when L8-10 = 0. 0 to 300 60sec A A A AL8-12Ambient TemperatureSettingAmbient TempWhen the Drive is installed in an ambient temperature exceeding itsrating, the Drive overload (OL2) protection level is adjusted. 45 to 60 45°C A A A AL8-15OL2 CharacteristicSelection at Low SpeedsOL2 Sel @ L-SpdThis parameter assists in protecting the output transistors fromoverheating when output current is high and output frequency islow (6Hz and less).0: Disabled1: Enabled (L8-18 is active)0 to 1 0 A A A AL8-18 Soft CLA SelectionSoft CLA SelEnables and disables the software current limit function. Consultthe factory before disabling.0: Disabled1: Enabled0 to 1 1 A A A AL8-32<3021>Cooling Fan OH1DetectionOH1 Detect Sel0: Disabled (FAN minor fault detection)1: Enabled (OH1 major fault detection) 0, 1 1 A A A AHunting Preventionn1-01Hunting PreventionSelectionHunt Prev SelectIf the motor vibrates while lightly loaded, huntingprevention may reduce the vibration.0: Disabled1: Enabled0 to 1 1 A A - -n1-02Hunting Prevention GainSettingHunt Prev GainSets the gain for the Hunting Prevention Function.If the motor vibrates while lightly loaded and n1-01=1, increase thegain by 0.1 until vibration ceases.If the motor stalls while n1-01=1, decrease the gain by 0.1 until thestalling ceases.0.00 to2.50 1.00 A A - -AFR Tuningn2-01Speed FeedbackDetection Control(AFR) GainAFR GainSets the internal speed feedback detection control gain in theautomatic frequency regulator (AFR).Normally, there is no need to change this setting.Adjust this parameter as follows:• If hunting occurs, increase the set value.• If response is low, decrease the set value.Adjust the setting by 0.05 units at a time, while checking theresponse.0.00 to10.00 1.00 - - A -n2-02Speed FeedbackDetection Control (AFR)Time ConstantAFR TimeSets the time constant to control the rate of change in the speedfeedback detection control. 0 to 2000 50ms - - A -n2-03Speed FeedbackDetection Control (AFR)Time Constant 2AFR Time 2Sets the time constant to control the amount of change in the speedat low speed. 0 to 2000 750ms - - A -Denotes that parameter can be changed when the Drive is running.Table A.1 F7 Parameter List (Continued)ParameterNo.Parameter NameDigital Operator Display Description SettingRangeFactorySettingControl MethodV/F V/Fw/PGOpenLoopVectorFluxVector