On-Line Autotuning - Hyundai n 700 Instruction Manual

N700 Operating Instructions and Parts Manual
12.2.2

ON-LINE autotuning

(1) Online autotuning can revise the motor constant by increase of temperature, and stabilize
running.
(2) This function acts only the 1st motor control. Do not operate it in the 2nd motor control.
(3) Precautions
① Be sure to execute offline autotuning before executing online autotuning.
② Be sure to execute autotuning once when a general-purpose motor, as the data for online
autotuning is computed during offline autotuning.
③ If DC braking is set when the motor stops, online autotuning is executed after DC braking
operation terminates.
(4) Setting method
① Set the motor constant selection (H002/H202) to the data of autotuning that is valid 2(AT
ONLINE DATA) online tuning.
(Give the autotuning selection (H001) as the ineffectiveness (0).)
② Input the run command.
12.3 Sensorless vector control(SLV)
(1) This function is the method that the revolution of motor and output torque are estimated by
output current, voltage of the inverter and motor constant of setting. It is possible to operate
high starting torque and high accuracy at low frequency(0.5Hz).
(2) In the case of using this function, please set 5(SLV) in F012.
(3) In the case of using this function, please set surely the suitable motor constant of using the
motor according to the parameter of "selection of motor constant [H**]".
(4) Precautions
① If the inverter operates less than two steps in capacity level for the maximum adopted
motor, the full performances may not be demonstrated.
② If a satisfactory performance can not be obtained, please adjust the motor constant for the
phenomena according to the following table.
Motor connection
Auto-tuning mode selection
H001=1 or 2
RUN command ON
Motor parameter setting
Parameter setting
completed, stop
Fig. 12- 2 Autotuning procedure
① DC excitation (no ratation)
② AC excitation (no ratation)
③ V/F operation (For H001=1, no rotation)
④ Display the tuning result
End display
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12. Explanation of H-Group