Electrical connection
6.7 Connecting the converter
1LA5/6/7/9, 1LG4/6, 1MA6/7, 1MB..1/2/3/4/5 - SH 63 ... 355
84
Operating Instructions, 06/2018, A5E44455710A
6.7
Connecting the converter
NOTICE
Excessively high supply voltage
Material damage can occur if the supply voltage is too high for the insulation system.
SIMOTICS machines can be operated with SINAMICS G converters and SINAMICS S
converters (uncontrolled and controlled infeed) when maintaining the permissible peak
voltages.
Carefully observe the values in the following tables.
Rise times t
r
> 0.1 µs.
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- 6
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
max
dependent on the rise time t
r
Û
phase-to-phase
V
pk
Û
phase-to-ground
V
pk
Rise time t
r
μs
DC link U
DC
V
≤ 500
V
1500
1100
0.5
750
900
900
0.1
Table 6- 7
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
max
dependent on the rise time t
r
Û
phase-to-phase
V
pk
Û
phase-to-ground
V
pk
Rise time t
r
μs
DC link U
DC
V
≤ 500
V
1600
1400
0.5
750
1000
1000
0.1
> 500 V to 690 V
2200
1800
0.5
1080
1000
1000
0.1
See also
Further documents (Page 163)
