5-22
2. Real-Time Auto-Gain Tuning
Two-degree-of-freedom control mode – Synchronous type
Parameters set/changed by real-time auto-gain tuning
• Parameters which are updated
The real-time auto-tuning function updates the following parameters according to
Pr0.02 Real-time auto-tuning setup by using the load characteristic estimate values.
Class No.
Title
Function
0
04
Inertia ratio
In the synchronous mode (Pr0.02 = 1),
synchronous friction compensation mode
(Pr0.02 = 2) and load characteristic update
mode (Pr0.02 = 4), this parameter will be
updated.
6
08
Positive direction torque compen-
sation value
In the synchronous friction compensation
mode (Pr0.02 = 2) and load characteristic
update mode (Pr0.02 = 4), this parameter
will be updated.
6
09
Negative direction torque compen
-
sation value
6
50
Viscous friction compensation gain
•
Parameters which are updated to setup value corresponding to stiffness setup
The real-time auto-tuning function updates the following basic gain setup parameters
according to Pr0.03 Real-time auto-tuning stiffness setup.
Class No.
Title
Function
1
00
1st gain of position loop
When real-time auto-tuning is valid (Pr0.02
= 1-4), updates the setup value according to
the stiffness.
Refer to P.5-9 Basic gain parameter setup
table.
1
01
1st gain of velocity loop
1
02
1st time constant of velocity loop
integration
1
04
1st time constant of torque filter
1
05
2nd gain of position loop
1
06
2nd gain of velocity loop
1
07
2nd time constant of velocity loop
integration
1
09
2nd time constant of torque filter
6
48
Adjust filter
In the synchronous mode, synchronous
friction compensation mode and stiffness
setup mode (Pr0.02 = 1-3), the setting will
be updated according to stiffness.
• Parameters which are set to fixed value
The real-time auto-tuning function sets the following parameters to fixed values or
uses the current setup values.
Class No.
Title
Setup value when fixed parameter
setup is valid.
1
03
1st filter of speed detection
0
1
08
2nd filter of speed detection
1
10
Velocity feed forward gain
1000 (100 %)
1
11
Velocity feed forward filter
0
1
12
Torque feed forward gain
1000 (100 %)
1
13
Torque feed forward filter
0
2
22
Command smoothing filter
Holds the current setup value.
*
1
6
07
Torque command additional value
0
6
10
Function expansion setup
bit4=1
6
49
Adjust/Torque command attenuation term
Tens digit set as 1 and ones digit is
kept as is.
*
1
If noise generates, change the setting to appropriate value (e.g. 3 ms = setup value: 30).
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