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

Set V/F pattern4.10.3 Elevator mode (automatic acceleration/deceleration) (Pr. 61, Pr. 64, Pr. 292)Operation matching a load characteristic of elevator with counterweight can be performed.V/FParameterNumberNameInitialValue61 Reference current 999964292Starting frequency forelevator modeAutomatic acceleration/deceleration99990Setting RangeDescription0 to 500A Set the reference current for elevator mode.9999 Rated inverter current value reference0 to 10% Set the starting frequency for the elevator mode.9999 Starting frequency 2Hz0 Normal modeOptimum acceleration/deceleration mode3(Refer to page 162.)Elevator mode 15(stall prevention operation level 150%)Elevator mode 26(stall prevention operation level 180%)7, 8 Brake sequence mode 1, 2 (Refer to page 192.)Minimum acceleration/deceleration mode11(Refer to page 162.)(1) Elevator mode⋅ When "5" or "6" is set in Pr. 292 Automatic acceleration/deceleration , elevator mode is selected and each setting ischanged as in the table below.⋅ Enough torque is generated during power driving and the torque boost value is automatically changed duringregeneration and operation without load so that overcurrent protection function does not activate due to overexcitation.Elevator ModeNormal ModeWhen Pr.0=6%Pr. 292 = 5 Pr. 292 = 6Torque boostStartingfrequencyBase frequencyvoltageStall preventionoperation level⋅Pr. 0(3/2%)Pr. 13 (0.5Hz)Pr. 19 (9999)Changes according to the outputcurrent (right chart)Pr. 64 (2Hz)Accelerate after maintaining 100ms220V (440V)Pr. 22 (150%) etc. 150% 180%⋅ When operating the elevator with load more than the rated inverter current, the maximum torque may becomeinsufficient.For the elevator without counterweight, setting "2 or 3" (for elevator load) in Pr. 14 Load pattern selection and anappropriate value in Pr. 19 Base frequency voltage will generate larger maximum torque than when elevator mode isselected.REMARKSStall prevention operation level automatically decreases according to the electronic thermal relay function cumulative value, toprevent inverter overload trip (E.THT, E.THM).(2) Adjustment of elevator mode (Pr. 61, Pr. 64)⋅ By setting the adjustment parameters Pr. 61 and Pr. 64, the application range can be made wider.ParameterNumber61 Reference current64Name Setting Range DescriptionStarting frequency forelevator modeTorque boost (%)For example, when the motor and inverter are different in0 to 500A capacity, set the rated motor current value. Set referencecurrent (A) of the stall prevention operation level9999 (initial value) The rated inverter output current is defined as reference.0 to 10Hz Set the starting frequency for the elevator mode.9999 (initial value) Starting frequency 2HzREMARKS⋅ Even if elevator mode has been selected, inputting the jog signal (jog operation), RT signal (second function selection) or X9signal (third function selection) during an inverter stop will switch to the normal operation and give priority to jog operation orsecond and third function selection. Note that JOG and RT signal input is invalid even if JOG signal and RT signal are inputduring operation with acceleration/deceleration selected.⋅ Elevator mode is invalid when advanced magnetic flux vector, real sensorless vector control or vector control is selected.⋅ Since the Pr. 61 and Pr. 64 settings automatically return to the initial value (9999) if the Pr. 292 setting is changed, set Pr. 292 firstwhen you need to set Pr. 61 and Pr. 64.6%Pr.03%Torque boost 0%Regenerative0currentPr.292= "5"Pr.292= "6"Driving100 120 140115 current(%)146