Siemens SIMOTICS XP 1MB5 SH400, Руководство по эксплуатации, Страница: 88 / 166

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
Maximum peak voltage at the motor terminals
Û
phase-to-phase
V
pk
Û
phase-to-ground
V
pk
DC link U
DC
V
≤ 500 V 1500 1100 750
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
Maximum peak voltage at the motor terminals
Û
phase-to-phase
V
pk
Û
phase-to-ground
V
pk
DC link U
DC
V
≤ 500 V 1600 1400 750
> 500 V to 690 V 2200 1,500 1080
Table 6-7 Rise times as a function of voltage level
Step height
V
Minimum rise time t
r
ns
900 100
1,050 200
1,260 400
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.
Electrical connection
6.10 Connecting the converter
1MB5 SH 400/450
86
Operating Instructions, 05/2019, A5E45959221A