Radio-Frequency Grounding For Converter Operation - Siemens SIMOTICS XP 1MB5 Series Operating Instructions Manual
Low-voltage motor
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1MB5 Series:
- Operating instructions manual (174 pages) ,
- Operating instructions manual (164 pages)
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Electrical connection
6.10 Connecting the converter
The insulation system of SIMOTICS machines corresponds to the specifications laid down in
IEC 60034-18-41 according to voltage stress category C (IVIC C = high stress).
Table 6-5
Maximum voltage peaks at the motor terminals for line (DOL) motors, converter operation possible
Rated motor voltage
V
≤ 500 V
Table 6-6
Maximum voltage peaks at the motor terminals for motors specifically designed for converter operation (e.g. VSD
10)
Rated motor voltage
V
≤ 500 V
> 500 V to 690 V
Table 6-7
6.10.1
Radio-frequency grounding for converter operation
In converter operation, the converter emits RF alternating currents. To establish and RF-
specific optimal connection between motor terminal box and motor enclosure, you can use
flexible braided copper flat cables with low impedance and a broad frequency range.
Establish the radio-frequency ground connection with flat cables. Alternatively you can
establish the radio-frequency ground connection with cable lugs.
86
Maximum peak voltage at the motor terminals
Û
phase-to-phase
V
pk
1500
Maximum peak voltage at the motor terminals
Û
phase-to-phase
V
pk
1600
2200
Rise times as a function of voltage level
Step height
V
900
1,050
1,260
Û
phase-to-ground
V
pk
1100
Û
phase-to-ground
V
pk
1400
1,500
Minimum rise time t
ns
100
200
400
Operating Instructions, 05/2019, A5E45959221A
DC link U
DC
V
750
DC link U
DC
V
750
1080
r
1MB5 SH 400/450
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