7-20
7-5 Manual Tuning
7
Adjustment Functions
*2. The Gain Switch Hysteresis Setting (Pn34) is defined as shown in the following figure.
*3. The amount of change is the value within 166 μs.
Example: When the condition is a 10% change in torque in 166 μs, the set value is 200.
*4. This is the encoder resolution value.
*5. The meanings of the Gain Switch Time, Gain Switch Level Setting, and Gain Switch Hysteresis
Setting are different from normal if this parameter is set to 10. (Refer to Figure F.)
Pn33
Pn34
0
Pn32
Gain 1
Gain 1
Gain 2
H
L
H
L
H
L
H
L
Figure A
Speed V
Torque T
ΔT
Level
Time
1
1
22 22
1
1Gain 1
Figure C
Speed V
Gain 1
Gain 1
Gain 2
Differential pulses
Level
Time
Figure D
Command
speed S
Gain 1
Gain 1
Gain 2
Time
Figure E
Actual
speed N
INP
Gain 1
Gain 1
Gain 2
Time
Figure B
Speed V
Level
Gain 1 Gain 1Gain 2
Time
Gain 1 Gain 2
Actual speed N
Time
Level
H
L
Gain 1
Gain 2 is used only during the Speed Loop Integration Time Constant.
Figure F
Gain 1 is used at other times.
Command speed S
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