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Appendix 4. Servo/spindle drive unit categories based on higher harmonic suppression countermeasure guidelines
A4 - 2
Appendix 4-1 Servo/spindle drive unit circuit categories based on higher harmonic
suppression countermeasure guidelines
Refer to the following table and calculate the circuit category (conversion coefficient) and the power
capacity based on higher harmonic suppression countermeasure guidelines.
Circuit category
Name Model
Circuit
category
Circuit type
Conversion
coefficient
TRS Series
3
3-phase bridge (smoothing
capacitor) with no reactor
K31 = 3.4
MR-S1/S2/S3
MR-S11/12 Series
3
3-phase bridge (smoothing
capacitor) with no reactor
K31 = 3.4
MDS-A-SVJ
MDS-B-SJV2
MR-J2-CT Series
3
3-phase bridge (smoothing
capacitor) with no reactor
K31 = 3.4
AC servo
drive unit
MDS-A-V1/V2
MDS-B-V1/V14/V2/V24
MDS-C1-V1/V2 Series
3
3-phase bridge (smoothing
capacitor) with AC reactor
K32 = 1.8
SFJ/SGJ Series
3
3-phase bridge (smoothing
capacitor) with no reactor
K31 = 3.4
MDS-A-SPJ
MDS-B-SPJ2 Series
3
3-phase bridge (smoothing
capacitor) with no reactor
K31 = 3.4
MDS-A-CSP-370/450
3
3-phase bridge (smoothing
capacitor) with no reactor
K31 = 3.4
AC spindle
drive unit
MDS-A-SP/SPA
MDS-B-SP/SPA/SPH/SPM/SPX
MDS-C1-SP/SPH/SPM/SPX Series
3
3-phase bridge (smoothing
capacitor) with no AC
reactor
K32 = 1.8
Usage conditions: The power supply unit (MDS-A/B/C1-CV Series) applies when using the AC reactor (B-AL Series). When
using the MDS-A-CR Series, calculate using the conversion coefficient K31 = 3.4 (no reactor).
Power facility capacity
Type
Rated
capacity
[kVA]
Type
Rated
capacity
[kVA]
Type
Rated
capacity
[kVA]
MDS-A/B/C1-SP-37 4.61 MDS-A/B/C1-V1-03 0.6 MDS-A/B/C1-V2-0503 1.6
MDS-A/B/C1-SP-55 6.77 MDS-A/B/C1-V1-05 1.0 MDS-A/B/C1-V2-0505 2.0
MDS-A/B/C1-SP-75 9.07 MDS-A/B/C1-V1-10 1.6 MDS-B/C1-V2-1003 2.2
MDS-A/B/C1-SP-110 13.1 MDS-A/B/C1-V1-20 2.7 MDS-A/B/C1-V2-1005 2.6
MDS-A/B/C1-SP-150 17.6 MDS-A/B/C1-V1-35 4.7 MDS-A/B/C1-V2-1010 3.2
MDS-A/B/C1-SP-185 21.8 MDS-A/B/C1-V1-45 5.9 MDS-A/B/C1-V2-2010 4.3
MDS-A/B/C1-SP-220 25.9 MDS-A/B/C1-V1-70 9.0 MDS-A/B/C1-V2-2020 5.4
MDS-A/B/C1-SP-260 30.0 MDS-A/B/C1-V1-90 11.5 MDS-A/B/C1-V2-3510 6.3
MDS-A/B/C1-SP-300 34.7 MDS-A/B/C1-V2-3520 7.4
MDS-B-SP-370 42.8 MDS-A/B/C1-V2-3535 9.4
MDS-B-SP-450 52.1 MDS-A/B/C1-V2-4520 8.6
MDS-B-SP-550 63.7 MDS-A/B/C1-V2-4535 10.6
MDS-C1-V2-4545 11.8
MDS-C1-V2-7070 18.0
SP: Including SPA/SPH/SPM/SPX V1: Including V14 V2: Including V24