Pa1_14 Load Inertia Ratio - Fuji Electric Alpha7 VV User Manual

Parameters that must be entered in each tuning mode and automatically adjusted parameters are
shown below.
No.
Name
PA1_
14 Load inertia ratio
15 Auto tuning gain 1
51 Moving average S-curve time
Position command response
54
time constant
55 Position loop gain 1
56 Speed loop gain 1
Speed loop integration time
57
constant 1
Torque filter time constant for
59
position and speed control
Model torque filter time
87
constant
Position loop integration time
88
constant
 : Items that must be entered
 : The item is entered automatically or manually according to a parameter (PA1_94: torque filter
setting mode).
- : Entry is unnecessary. (The item is automatically calculated inside the amplifier and the result is
reflected on the parameter.)
 : Entry can be made, but the setting is ineffective.
 For detail description of tuning, refer to "CHAPTER 5 SERVO ADJUSTMENT."

PA1_14 Load inertia ratio

No. Name
14 Load inertia ratio
Enter the moment of inertia of the load of the mechanical system in relation to the motor shaft (moment
of inertia of load converted to motor shaft) in a ratio to the moment of inertia of the motor.
Load inertia ratio
=
The parameter must be entered according to some settings of PA1_13 (tuning mode selection).
With auto tuning, the value is automatically updated and saved in EEPROM every 10 minutes.
The value must be entered in the semi-auto, manual and interpolation control modes.
0: Auto
-

-
-
-
-
-

-
-
Setting range
GYS and GYB, 750 W or less:
0.0 to 300.0 [times]
GYS, 1 kW or more: 0.0 to 100.0 [times]
GYG : 0.0 to 30.0 [times]
Load inertia of converted to motor shaft
Inertia of motor
CHAPTER 4 PARAMETER
Tuning mode selection
1: Semi-auto 2: Manual
 
 
-

- 
-

-

- 
 
- 
- 
Default value
Basic Parameters
3: Interpolation
control




-
-
-

-
-
Change
1.0 Always
4-19
4