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SD710 Series Servo Drive User's Manual Chapter 7 Auxiliary Functions
23
assist
meri
torious
d
eed
or
service
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le
input type advanced auto-tuning adjustment or one key adjustment.
● When an adequate range of motion is not available
● When the rotational inertia varies within the set operating range
● When th
e dynamic friction of the machinery is high
● When mechanical rigidity is low and vibration occurs during positioning
moves
● When using the location credit function
● When P (proportional) control (When "presumption of inertia" is set, the mode s
witch function becomes inactive during
the presumption of inertia and becomes PI control, and the mode switch function becomes active again after the
presumption of inertia is completed)
● When speed feedforward and torque feedforward are input
● Smaller positionin
g completion thresholds
When fine tuning the overshoot amount without changing the positioning completion threshold (Pn262), the overshoot
checkout value (Pn192) is used. Since the factory setting of Pn192 is 100%, the redundant maximum is adjusted to the
same overshoot amount as the preposition completion threshold. If it is changed to 0%, adjustment can be made when
overshoot occurs within the positioning completion width. However, the positioning time may be extended after changing
this value.
(4) Setting of relevant parameters before adjustment
①
Moving distance
Pn702
Advanced adjustment of the moveable range
○
Address: 0x0702
Default: 3.0
Display range: 0.5 to 10.0
Unit: 0.1 turn
Mode:
□
P
□
S
□
T
②
Inertia recognition initial value
Pn705
Initial value of inertia discrimination
○
Address: 0x0705
Default: 300
Display range: 0 to 20000
Unit: 1%
Mode:
□
P
□
S
□
T
③
Inertia discrimination vibration detection threshold
Pn706
Vibration detection threshold in inertia discrimination
○
Address: 0x0706
Default: 300
Display range: 0 to 5000
Unit: 1rpm
Mode:
□
P
□
S
□
T
(5) Operation steps
The procedure is shown below.
Steps
Panel display
Keys used
Operations
1
Press the "MODE/SET" key to select the auxiliary function.
Adjust by pressing the "UP" and "DOWN" keys until Fn000
is displayed.
2
Adjust by pressing "UP" or "DOWN" until Fn201 is
displayed.
MODE/SET
Data/
MODE/SET
Data/