FR-F700 INSTRUCTION MANUAL (BASIC) - MRO Stop

4ADJUSTMENTEnergy saving operation (Pr. 60)4.5 Energy saving operation (Pr. 60)Without a fine parameter setting, the inverter automatically performs energy saving operation.This inverter is appropriate for fan and pump applicationsParameterNumberNameInitialValue60 Energy saving control selection 0SettingRangeRemarks0 Normal operation mode4 Energy saving operation mode9 Optimum excitation control mode4.5.1 Energy saving operation mode (setting "4")· When "4" is set in Pr. 60, the inverter operates in the energy saving operation mode.· In the energy saving operation mode, the inverter automatically controls the output voltage to minimize theinverter output voltage during a constant operation.REMARKS· For applications a large load torque is applied to or machines repeat frequent acceleration/deceleration, an energy savingeffect is not expected.4.5.2 Optimum excitation control mode (setting "9")· When "9" is set in Pr. 60, the inverter operates in the optimum excitation control mode.· The optimum excitation control mode is a control system which controls excitation current to improve the motorefficiency to maximum and determines output voltage as an energy saving method.REMARKS· When the motor capacity is too small as compared to the inverter capacity or two or more motors are connected to oneinverter, the energy saving effect is not expected.CAUTION· When the energy saving mode and optimum excitation control mode are selected, deceleration time may be longer than thesetting value. Since overvoltage alarm tends to occur as compared to the constant torque load characteristics, set a longerdeceleration time.· The energy saving mode and optimum excitation control functions only under V/F control.When a value other than "9999" is set in Pr. 80 Motor capacity (simple magnetic flux control), the energy saving mode andoptimum excitation control does not function.(For simple magnetic flux vector control, refer to Instruction Manual (applied) chapter 4.)POINTWhen you want to check the energy saving effect, refer toenergy saving effect monitor.Instruction Manual (applied) chapter 4 to check the59