6. NORMAL GAIN ADJUSTMENT
6 - 23
(3) Adjustment procedure of 2 gain adjustment mode
POINT
Set the same value in [Pr. PB07 Model loop gain] for the axis used in 2 gain
adjustment mode.
Step
Operation
Description
1
Set to the auto tuning mode.
Select the auto tuning
mode 1.
2
During operation, increase the response level setting value in [Pr.
PA09], and return the setting if vibration occurs.
Adjustment in auto tuning
mode 1
3
Check value of the model loop gain and the load to motor inertia
ratio in advance.
Check the upper setting
limits.
4
Set the 2 gain adjustment mode 1 ([Pr. PA08]: _ _ _ 0).
Select the 2 gain
adjustment mode 1
(interpolation mode).
5
When the load to motor inertia ratio is different from the design
value, select the 2 gain adjustment mode 2 ([Pr. PA08]: _ _ _ 4)
and then set the load to motor inertia ratio manually in [Pr. PB06].
Check the load to motor
inertia ratio.
6
Set the model loop gain of all the axes to be interpolated to the
same value. At that time, adjust to the setting value of the axis,
which has the smallest model loop gain.
Set position loop gain.
7
Considering the interpolation characteristic and motor status,
fine-adjust the model loop gain and response level setting.
Fine adjustment
(4) Parameter adjustment
[Pr. PB07 Model loop gain]
This parameter determines the response level of the position control loop. Increasing the value improves
track ability to a position command, but a too high value will make overshoot liable to occur at settling.
The droop pulse value is determined by the following expression.
Number of droop pulses [pulse] =
Model loop gain setting
Position command frequency [pulse/s]
Position command frequency =
Speed [r/min]
60
× Encoder resolution (number of pulses per servo motor
revolution)
Summary of Contents for MELSERVO-JE MR-JE-100A
Page 23: ...1 FUNCTIONS AND CONFIGURATION 1 12 MEMO ...
Page 29: ...2 INSTALLATION 2 6 MEMO ...
Page 91: ...3 SIGNALS AND WIRING 3 62 MEMO ...
Page 171: ...5 PARAMETERS 5 44 MEMO ...
Page 195: ...6 NORMAL GAIN ADJUSTMENT 6 24 MEMO ...
Page 221: ...7 SPECIAL ADJUSTMENT FUNCTIONS 7 26 MEMO ...
Page 249: ...8 TROUBLESHOOTING 8 28 MEMO ...
Page 255: ...9 DIMENSIONS 9 6 MEMO ...
Page 263: ...10 CHARACTERISTICS 10 8 MEMO ...
Page 293: ...11 OPTIONS AND PERIPHERAL EQUIPMENT 11 30 MEMO ...