User manual
4 - 9
MDS-D-SVJ3/SPJ3 Series Instruction Manual
4-3 Gain adjustment
Load inertia ratio display
Perform the measurement in the section "4-4-5 (1) Measuring unbalance torque and frictional torque",
and set a torque offset (SV032) and frictional torque (SV045).
When an acceleration/deceleration operation is executed with the setting of SV035/bitF=1, an estimated
load inertia ratio will be displayed in "load inertia ratio " on the drive monitor screen.
Standard VGN1 graph (servo motor HF, HF-KP Series)
100
200
0
500
400
300
100 200 400 600 30 0 50 0
600
100
200
0
500
400
300
100 200
400
600 300 500
600
100
200
0
500
400
300
100 200 400 600 30 0 50 0
600
100
200
0
500
400
300
100 200
400
600 300 500
600
10
20
0
50
40
30
100 20 0 400 600 300 50 0
60
HF- KP13
HF- KP43
20
40
0
100
80
60
10 0 20 0 400 600 300 500
120
[ HF204, HF354, HF123, HF142, HF223 ] [HF302, HF303 ]
[ HF105, HF104, HF154, HF224 ][ HF75, HF54 ]
[ HF-KP73 ]
[ HF-KP13, HF-KP23, HF-KP43 ]
HF- KP23
Isolated motor
Isolated motor
Load inertia magnification (%)
Standard
VGN1
Isolated motor
Load inertia magnification (%)
Standard
VGN1
Isolated motor
Load inertia magnification (%)
Isolated motor
Isolated motor
Load inertia magnification (%)
Load inertia magnification (%)
Load inertia magnification (%)
OSA105(-A51) VGN limit = 350
OSA18(-A48) VGN limit = 300
OSA105(-A51) VGN limit = 350
OSA18(-A48) VGN limit = 300










