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5. Settings
Digitax SF I
nstruction Man
ual
5. Parameters
No. 117.0
Tuning:
Position control mode - Gain FF compensation 1
Range
Default
Characteristics
0 to 15,000
10,000
[0.01 % ]
Function
Use
Set the
Feed
Forward Compensation Rate (speed) with respect to [Control Gain
1 (115.0)] for Position Control Mode.
Using this parameter is effective to shorten the settling time.
Adjust this
value
after setting the following:
Inertia ratio (102.0), Control gain set (113.0), Control level (114.0),
Control gain 1 (115.0), Control gain 2 (116.0)
Too high a value of this parameter will result in overshooting, and too low in undershooting. Set
a
relatively moderate value.
Prerequisite
Position Control Mode
Related To
No. 113.0, No. 115.0, No. 118.0
No. 118.0
Tuning:
Position control mode - Gain FF compensation 2
Range
Default
Characteristics
0 to 15,000
0
[0.01 % ]
Function
Use
Set
Feed
Forward Compensation Rate (Torque) with respect to [Control Gain 2
(No.116.0)] for Position Control Mode.
Using this
value
will reduce position
errors
during operation.
Setting this item to around 10,000 will make the position
errors
during operation almost zero.
Raise the value of this item only after reducing the position
error
, by using
Gain FF Compensation 1
(117.0) at settling.
Noise Solutions
Adjusting
Filter 4: Smoothing 2- Moving average counter
(81.0) may reduce the noise.
Prerequisite
Position Control Mode
Related To
No. 113.0, No. 116.0, No. 117.0
7
Tuning
7
Tuning
-
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Summary of Contents for Control Techniques Digitax-SF DA21223
Page 6: ...6 MEMO Digitax SF Instruction Manual ...
Page 23: ...17 MEMO Digitax SF Instruction Manual 1 Before Use 2 Overview ...
Page 283: ...48 MEMO Digitax SF Instruction Manual 6 Operation 5 Position Control Mode ...
Page 329: ...46 MEMO Digitax SF Instruction Manual 7 Tuning ...
Page 330: ...8 8 Troubleshooting 2 2 4 5 5 6 8 8 9 17 18 19 20 21 22 23 ...
Page 353: ...24 MEMO 8 Troubleshooting Digitx SF Instruction Manual ...