Toshiba H7 Operation Manuals

Also see for Adjustable Speed Drive H7 Series: Applications Workbook Specification

Contents

132 H7 ASD Operation ManualStall Prevention During RegenerationProgram ⇒ Protection Parameters ⇒ Stall ⇒ Stall Prevention DuringRegenerationThis parameter Enables/Disables the Overvoltage Stall (F305) and theOvercurrent Stall (F017) function during regeneration only. Application-specific conditions may occur that warrant disabling the Stall function duringregeneration.Settings:With Stall PreventionWithout Stall PreventionDirect Access Number — F453Parameter Type — Selection ListFactory Default — With StallPrevention.Changeable During Run — YesCurrent Differential GainProgram ⇒ Special Control Parameters ⇒ Special Parameters ⇒Current Differential GainThis parameter determines the degree that the current differential functionaffects the output signal. The larger the value entered here, the morepronounced the Current Differential Gain.Direct Access Number — F454Parameter Type — NumericalFactory Default — 1.23Changeable During Run — YesVI/II Bias AdjustProgram ⇒ Frequency Setting Parameters ⇒ Speed ReferenceSetpoints ⇒ VI/II ⇒ BiasThis parameter is used to fine-tune the bias of the VI/II input terminals.Note: See note on pg. 33 for further information on the VI/II terminal.This setting may be used to ensure that the zero level of the input source (pot,pressure transducer, flow meter, etc.) is also the zero level setting of the ASDsystem.This is accomplished by setting the input source to zero and either increasing ordecreasing this setting to provide an output of zero from the ASD.Direct Access Number — F470Parameter Type — NumericalFactory Default — 100Changeable During Run — YesMinimum — 0.0Maximum — 255VI/II Gain AdjustProgram ⇒ Frequency Setting Parameters ⇒ Speed ReferenceSetpoints ⇒ VI/II ⇒ GainThis parameter is used to fine tune the gain of the VI/II input terminals.Note: See note on pg. 33 for further information on the VI/II terminal.This setting may be used to ensure that the 100% level of the input source (pot,pressure transducer, flow meter, etc.) is also the 100% level setting of the ASDsystem.This is accomplished by setting the input source to 100% and either increasingor decreasing this setting to provide an output of 100% from the ASD.Direct Access Number — F471Parameter Type — NumericalFactory Default — 50Changeable During Run — YesMinimum — 0.0Maximum — 255F453 F471www . ElectricalPartManuals . com