Gain Adjustment Of Current Controllers For The D Axis And The Q Axis - Mitsubishi Electric FR-A820-00046 Instruction Manual

Real sensorless vector control, vector control, PM sensorless vector control adjustment
5.6.3

Gain adjustment of current controllers for the d axis and the q axis

The gain of the current controller can be adjusted.
Pr.
824
G213
825
G214
● Use Pr. 824 "Torque control P gain 1 (current loop proportional gain)" to adjust the proportional
gain of current controllers for the d axis and the q axis. The 100% gain is equivalent to 1000 rad/s.
Setting this parameter higher improves the trackability for current command changes. It also
reduces the current fluctuation caused by external disturbances.
● Use Pr. 825 "Torque control integral time 1 (current loop integral time)" to set the integral time of
current controllers for the d axis and the q axis. If the setting value is small, it produces current
fluctuation toward disturbance, decreasing time until it returns to original current value.
NOTES When excitation ratio is reduced, output torque startup is less responsive.
Pr. 834 "Torque control P gain 2"and Pr. 835 "Torque control integral time 2" are valid when termi-
nal RT is ON. In this case, replace them for Pr. 824 and Pr. 825 in the description above.
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Name
Torque control P gain 1
(current loop proportional
gain)
Torque control integral
time 1 (current loop
integral time)
Initial Setting
Description
value range
100% 0 to 500% The proportional gain of the current controller is set.
5 ms 0 to 500 ms The integral time of the current controller is set.
Parameters
PM PM PM