Parameters Set According To Feedrate; Parameters Set According To Machine Movable Mass - Mitsubishi Electric MELDAS MDS-B Series Instruction Manual

9-2-2 Parameters set according to feedrate

The following parameters are determined according to each axis' feedrate.
No. Abbrev. Parameter name
SV023 OD1 Excessive error detection
width at servo ON
SV026 OD2 Excessive error detection
width at servo OFF

9-2-3 Parameters set according to machine movable mass

The following parameters are set according to the machine's movable mass (including motor mass).
No. Abbrev. Parameter name
SV005 VGN1 Speed loop gain.
SV008 VIA Speed loop leading
compensation
700
〈LM-NP〉
600
500
400
Standard
VGN1
300
200
100
0
0 20
700
〈LM-NP〉
600
500
2L-15M
400
Standard
VGN1
300
200
100
0
0 100
700
〈LM-NP〉
600
500
400
Standard
VGN1
300
200
100
0
0 200
Chapter 9 Setup
A protective function will activate if the error between the position command and
position feedback is excessive. If the machine load is heavy and problems
occur with the standard settings, gradually increase the setting value.
<Calculation of standard setting value>
OD1 = OD2 =
Refer to the comparison graph with the total movable mass (including motor
mass) for the standard setting value.
Set 1364 as a standard. Set 1900 as a standard for the SHG control.
If the total movable mass is large and the VGN1 value is smaller than the
standard value, a lower value can be set regardless of whether normal control
or SGH control is used.
2S-05M
40 60 80 100 120 140
Total movable mass (kg)
4M-20M
200 300 400 500
Total movable mass (kg)
4G-40M
400 600 800 1000
Total movable mass (kg)
Explanation
Max. rapid traverse rate (mm/min)
60 × PGN1
Explanation
700
〈LM-NP〉
600
500
2M-10M
4S-10M
400
Standard
VGN1
300
200
100
0
0 40 80 120
Total movable mass (kg)
700
〈LM-NP〉
600
500
4L-30M
400
Standard
VGN1
300
200
100
0
0 100 200 300
Total movable mass (kg)
9–8
× 0.5 (mm)
160 200 240 280
400 500 600 700