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

4PARAMETERS(3) Torque command using parameters (Pr. 804 = "1")600%(4) Torque command by CC-Link communication (Pr. 804 = "3, 5, 6")Torque control by real sensorless vectorcontrol, vector control⋅ Writing a value to Pr. 805 or Pr. 806 using the FR-A7NC (communication option) sets the torque command value.⋅ When "3 or 5" is set in Pr.804, torque command can be set in remote resister RWw1 or RWwC using the FR-A7NC(communication option).⋅ By setting "5, 6" in Pr.804, the range of torque command setting from FR-A7NC (communication option) is set from-327.68% to 327.67% (0.01% increments).(5) Torque command by 16 bit digital input (Pr. 804 = 4)⋅ Torque command value can be set by setting Pr. 805Torque command value (RAM) or Pr. 806 Torque commandvalue (RAM,EEPROM) .⋅ For Pr. 805 or Pr. 806, the torque command is set by anoffset from 1000% on the assumption that 1000% is 0%.The relationship between the Pr. 805 or Pr. 806 settingand actual torque command value at this time is shownon the left.⋅ When changing the torque command frequently, write toPr. 805. Performing frequent parameter write to Pr. 806 willshorten the life of the EEPROM.CAUTION⋅ When giving a torque command by parameter setting, set the speed limit value to an appropriate value to prevent overspeed.(Refer to page 110.)Pr. 804 Setting Torque Command Source Setting Range Increments1 Torque command by parameter setting (Pr. 805 or Pr. 806) 600 to 1400 (-400% to 400%) 1%356REMARKSTorque command value400%Pr.805, Pr.806settings1000% 1400%Torque command value=Pr.805(or Pr.806)-1000%-400%REMARKS⋅ When torque command is set in Pr. 805 (RAM), powering off the inverter will erase the changed parameter values. Therefore,the parameter value available when power is switched on again is the value set in Pr. 806 (EEPROM).Torque command by parameter setting (Pr. 805 or Pr. 806)Torque command from remote resister (RWw1 or RWwC)with using CC-Link communication (FR-A7NC)Torque command by parameter setting (Pr. 805 or Pr. 806)without using CC-Link communication (FR-A7NC)Torque command by parameter setting (Pr. 805 or Pr. 806)with using CC-Link communication (FR-A7NC)Torque command from remote resister (RWw1 or RWwC)with using CC-Link communication (FR-A7NC)Torque command by parameter setting (Pr. 805 or Pr. 806)without using CC-Link communication (FR-A7NC)Torque command by parameter setting (Pr. 805 or Pr. 806)with using CC-Link communication (FR-A7NC)For details of the setting with the FR-A7NC, refer to the FR-A7NC instruction manual.600 to 1400 (-400% to 400%) 1%600 to 1400 (-400% to 400%) 1%-32768 to 32767 (two's complement)(-327.68% to 327.67%)-32768 to 32767 (two's complement)(-327.68% to 327.67%)⋅ Give a torque command by 16 bit or 12 bit digital input using the FR-A7AX (plug-in option).0.01%0.01%600 to 1400 (-400% to 400%) 1%-32768 to 32767 (two's complement)(-327.68% to 327.67%)0.01%REMARKSFor details of the setting with the FR-A7AX, refer to the FR-A7AX instruction manual.(6) Change the torque characteristics in the constant power (Pr. 803)TorqueConstant torque rangeConstant power rangePr. 803 =1:constant torque commandPr. 803 =0:constant power command(torque reduction)⋅Due to the motor characteristics, torque is reduced at orabove the base frequency. Set "1" in Pr. 803 Constantpower range torque characteristic selection when you wantto keep the torque to be constant even at or above thebase frequency.Base speedSpeed♦Parameters referred to♦Pr. 868 Terminal 1 function assignment Refer to page 83.Calibration parameter C16 (Pr. 919) to C19 (Pr. 920) (terminal 1 bias, gain torque) Refer to page 273109