−
55
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Adjustments
Purposes of Gain Adjustment
In case of the servo motor, the motor is required to act per any command without any
time delay, or without missing
any commands. To ensure this, gain adjustment is necessary.
<Example: ball screw>
Position loop gain
:20
Velocity loop gain
:100
Velocity loop integration time constant:50
Velocity feed forward
:0
Inertia ratio
:100
Position loop gain
:130
Velocity loop gain
:260
Velocity loop integration time constant:30
Velocity feed forward
:0
Inertia ratio
:100
Position loop gain
:130
Velocity loop gain
:260
Velocity loop integration time constant:30
Velocity feed forward
:50
Inertia ratio
:100
Types of Gain Adjustment
Gain set-up: low
Gain set-up: high
+Feed forward set-up
+2000
-2000
0
0.0
375
250
125
0.0
375
250
125
0.0
375
250
125
{r pm}
+2000
-2000
0
{r pm}
Actual velocity
Command
Speed
Type
Description
Accelerate and decelerate the motor per the preset
(internally fixed) patterns to calculate the load inertia
from the required torque. Then automatically define
appropriate gains according to the inertia.
During an actual operation, calculate the load inertia in
real time. Then automatically define appropriate gains
according to the inertia.The gains will be automatically
adjusted against the fluctuation of load inertia during
operation.
You can manually adjust the necessary gains to obtain
the most appropriate action by monitoring command to
the driver, motor speed, torque and position error as the
monitor signals(SP, IM), or using the optional
communication software, PANATERM(especially with is
graphic functi
Automatic
adjustment
Manual
adjustment
Normal mode
auto gain tuning
Real time
auto gain tuning
Manual gain tuning
Preparetions and Adjustments
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