8.12 Additional Adjustment Functions
8.12.1 Automatic Gain Switching
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8.12
Additional Adjustment Functions
This section describes the functions that you can use to make adjustments after you perform
autotuning without a host reference, autotuning with a host reference, and custom tuning.
8.12.1
Automatic Gain Switching
You can use gain switching to shorten the positioning time by increasing the gains during posi-
tioning and suppressing vibration by decreasing the gains while stopping.
Note: Pn139 = n.
1 is a reserved setting. Do not use this setting.
Gain Switching Combinations
Note: Automatic gain switching is not supported for the model following control gain and the model following con-
trol gain correction.
Switching Condition
Select one of the following settings for switching condition A.
Function
Reference
Automatic Gain Switching
Friction Compensation
Current Control Mode Selection
Current Gain Level Setting
Speed Detection Method Selection
Backlash Compensation
Parameter
Function
When Enabled
Classification
Pn139
n.
0
(default setting)
Disable automatic gain switching.
Immediately Tuning
n.
2
Enable automatic gain switching.
Selected
Gains
Speed Loop
Gain
Speed Loop
Integral Time
Constant
Position Loop
Gain
Torque Reference
Filter
Friction
Compensation
Gain
Gain
Settings 1
Speed Loop
Gain (Pn100)
Speed Loop Inte-
gral Time Constant
(Pn101)
Position Loop
Gain (Pn102)
First Stage First
Torque Reference
Filter Time Con-
stant (Pn401)
Friction Com-
pensation Gain
(Pn121)
Gain
Settings 2
Second
Speed Loop
Gain (Pn104)
Second Speed
Loop Integral Time
Constant (Pn105)
Second Posi-
tion Loop Gain
(Pn106)
First Stage Second
Torque Reference
Filter Time Con-
stant (Pn412)
Second Friction
Compensation
Gain (Pn122)
Parameter
Switching
Condition
Selected Gains
Switching
Waiting Time
Switching Time
Pn139
n.
2
Condition A
satisfied
Gain settings 1 to gain set-
tings 2
Gain Switching
Waiting Time 1
Pn135
Gain Switching
Time 1
Pn131
Condition A not
satisfied
Gain settings 2 to gain set-
tings 1
Gain Switching
Waiting Time 2
Pn136
Gain Switching
Time 2
Pn132