Omron SYSDRIVE RX Series User Manual page 220

4-2 Function Mode
Online Auto-Tuning Function
•Online auto-tuning compensates for changes in motor parameters resulting from a motor
temperature rise or other factor, thus ensuring stable operation.
•This function is applicable to 1st/2nd control, not to 3rd control.
Parameter No.
H002/H202
Note the following before use:
4
•Be sure to perform the offline auto-tuning before the online auto-tuning.
•This function calculates online auto-tuning data during offline auto-tuning. Even with a general-
purpose motor, perform offline auto-tuning once.
•After the motor is stopped, online auto-tuning is performed for 5 seconds max. (For tuning R1 and
R2, this function performs DC excitation once. The tuning result is not displayed.) If the RUN
command is input during this period, priority is given to the RUN command, and the online auto-
tuning is aborted. (The tuning result is not reflected.)
•With "DC injection braking during stop" selected, online auto-tuning starts after DC injection
braking is completed.
•If FOC and SON are allocated to terminals, online auto-tuning is not performed.
Operating Procedure
(1) Set motor parameter selection H002 to "02" (online auto-tuning enabled).
(Set auto-tuning selection H001 to "00" (disabled).)
(2) Turn on the RUN command. (The Inverter automatically performs online auto-tuning during
stop.)
Secondary Resistance Compensation Function (Temperature
Compensation)
•This function compensates for speed fluctuations resulting from motor temperature changes, when
"sensorless vector control", "0-Hz sensorless vector control", or "sensor vector control" is selected
as the control method.
Use thermistor PB-41E (SHIBAURA ELECTRONICS).
•To use this function, set thermistor selection b098 to "02" (NTC).
(With other thermistors and settings, the motor temperature cannot be detected correctly.)
Parameter No.
P025
4-111
Function name
Motor parameter selection
Function name
Secondary resistance
compensation enable/disable
selection
Data
00: Standard motor parameter
01: Auto-tuning parameter
02: Auto-tuning parameter
(Online auto-tuning data enabled.)
Data
00: Disabled
01: Enabled
Default setting Unit
⎯
00
Default setting Unit
⎯
00