FR-A701 INSTRUCTION MANUAL (Applied) - Automation Systems ...

Frequency/torque setting by analoginput (terminal 1, 2, 4)• Terminal 4 functional calibration parameterPr. 858 TerminalSetting FunctionBias setting0 Frequency (speed) C5(Pr. 904) Terminal 4 frequency setting bias frequency(initial command/speedvalue)limit C6(Pr. 904) Terminal 4 frequency setting bias14Magnetic fluxcommandStall preventionoperation level */torque limitC38(Pr. 932) Terminal 4 bias command (torque/magnetic flux)C39(Pr. 932) Terminal 4 bias (torque/magnetic flux)C38(Pr. 932) Terminal 4 bias command (torque/magnetic flux)C39(Pr. 932) Terminal 4 bias (torque/magnetic flux)Calibration ParametersGain settingPr. 126 Terminal 4 frequency setting gain frequencyC7(Pr. 905) Terminal 4 frequency setting gainC40(Pr. 933) Terminal 4 gain command (torque/magnetic flux)C41(Pr. 933) Terminal 4 gain (torque/magnetic flux)C40(Pr. 933) Terminal 4 gain command (torque/magnetic flux)C41(Pr. 933) Terminal 4 gain (torque/magnetic flux)9999 ⎯ ⎯ ⎯⎯ : No function* Use Pr. 148 Stall prevention level at 0V input and Pr. 149 Stall prevention level at 10V input to adjust bias/gain of stall prevention operation level.(-5V)(-10V)-100%Torque(%)BiasC38(Pr.932)400150Torque(%)400150BiasC16(Pr.919)Calibration example of terminal 1(3) Change the torque at maximum analoginput (C18(Pr. 920), C40(Pr. 933))· Set C18(Pr. 920), C40(Pr. 933) when changing onlytorque setting (gain) of the maximum analog inputvoltage (current).(4) Calibration of analog input bias and gain(C16(Pr. 919) to C19(Pr. 920), C38 (Pr. 932) toC41 (Pr. 933))· The "bias" and "gain" functions are used to adjust therelationship between the input signal entered fromoutside the inverter to set the torque command andtorque limit, e.g. 0 to 5V, 0 to 10V or 4 to 20mADC, andthe torque.· Set the bias torque of terminal 1 input in C16 (Pr. 919) .(It is factory-set to the torque at 0V)· Set the torque in C18 (Pr. 920) for the torque commandvoltage set with Pr. 73 Analog input selection.(initial value is 10V)· Set the bias torque of terminal 4 input in C38 (Pr. 932) .(It is factory-set to the torque at 4mA)· Set the torque in C40 (Pr. 933) for 20mA of the torquecommand current (4 to 20mA).· There are the following three methods to adjust thetorque setting voltage (current) bias and gain.a) Method to adjust any point without application ofvoltage (current) to across terminals 1-5(4-5)page 275b) Method to adjust any point without application ofvoltage (current) to across terminals 1-5(4-5)page 276c) Method to adjust torque only without adjustment ofvoltage (current) page 277CAUTION· When voltage/current input specifications were switched using Pr. 73 and Pr. 267 , perform calibration without fail.(5) Analog input display unit changing (Pr. 241)· You can change the analog input display unit (%/V/mA) for analog input bias/gain calibration.· Display unit of C17 (Pr. 919), C19 (Pr. 920), C39 (Pr. 932), C41 (Pr. 933) changes as follows accrding to the terminalinput specifications set in Pr. 73 and Pr. 267 .Analog Command (terminal 1,4)(according to Pr. 73, Pr. 267 )GainC18(Pr.920)Initial value000Torque setting signal100%5V10VC17(Pr.919)C19(Pr.920)-150Initial valueGainC40(Pr.933)0 20100%0 4 20mATorque setting signalC39(Pr.932)C41(Pr.933)Calibration example of terminal 4Pr. 241 = 0 (initial value) Pr. 241 = 10 to 5V input 0 to 5V → displayed in 0 to 100% (0.1%) 0 to 100% → displayed in 0 to 5V (0.01V)0 to 10V input 0 to 10V → displayed in 0 to 100% (0.1%) 0 to 100% → displayed in 0 to 10V (0.01V)0 to 20mA input 0 to 20mA → displayed in 0 to 100% (0.1%) 0 to 100% → displayed in 0 to 20mA (0.01mA)274