Siemens SINAMICS G130 Engineering Manual page 136

Fundamental Principles and System Description
Engineering Information
Based on the equations and diagrams given above, the peak value V
winding can be exactly calculated for motor cable lengths with maximum reflection factor:
The following tables provide an overview of the peak values V
for typical SINAMICS drive configurations as a function of the influencing variables described above for motor cable
lengths with maximum reflection factor.
The peak values V on the motor terminals are the lowest on drives with Basic Infeed operating in motor mode
PP
(G130, G150, S120 Basic Line Modules) or on drives with Smart Infeed.
Line supply voltage
V
Line
400 V
460 V
480 V
500 V
600 V
660 V
690 V
Peak values V at the motor with Basic Infeed or Smart Infeed
PP
The peak values V on the motor terminals are somewhat higher on drives with Active Infeeds as these operate as
PP
step-up converters (S150, S120 Active Line Modules).
Line supply voltage
V
Line
400 V
460 V
480 V
500 V
600 V
660 V
690 V
Peak values V at the motor with Active Infeed
PP
The peak values V on the motor are the highest during braking when the V
PP
unit is active. In the case of a braking unit, it is assumed that its response voltage has been adjusted according to the
line voltage, i.e. that the lower response voltage of the braking unit is selected for low line voltages. For further
details, please refer to the chapters on specific converter types, e.g. "Converter Chassis Units SINAMICS G130" and
"Converter Cabinet Units SINAMICS G150".
Line supply voltage
V
Line
400 V
460 V
480 V
500 V
600 V
660 V
690 V
Peak values V at the motor in braking operation with a braking unit
PP
SINAMICS Engineering Manual – November 2015
136/528
Ó Siemens AG
= ×
V V
PP Line
DC link voltage
V ≈ 1.35 V
DCLink * Line
540 V
620 V
650 V
675 V
810 V
890 V
930 V
DC link voltage set to
factory value
V = 1.5 V
DCLink * Line
600 V
690 V
720 V
750 V
900 V
990 V
1035 V
Response voltage
of braking unit
673 V (lower threshold)
774 V (upper threshold)
774 V (upper threshold)
841 V (lower threshold)
967 V (upper threshold)
1070 V (lower threshold)
1158 V (upper threshold)
of the phase-to-phase voltage at the motor
PP
V
×
DCLink r
.
V
Line
of the phase-to-phase voltage at the motor winding
PP
Peak voltage V
PP
on motor terminals with
a reflection factor of 1.7
920 V
1050 V
1100 V
1150 V
1380 V
1510 V
1580 V
Peak voltage V
PP
on motor terminals with
a reflection factor of 1.7
1020 V
1170 V
1220 V
1270 V
1530 V
1680 V
1760 V
controller or a connected braking
dc max
Peak voltage V
PP
on motor terminals with
a reflection factor of 1.7
1140 V
1320 V
1320 V
1430 V
1640 V
1820 V
1970 V
Peak voltage V
PP
on motor terminals with
a reflection factor of 2.0
1080 V
1240 V
1300 V
1350 V
1620 V
1780 V
1860 V
Peak voltage V
PP
on motor terminals with
a reflection factor of 2.0
1200 V
1380 V
1440 V
1500 V
1800 V
1980 V
2070 V
Peak voltage V
PP
on motor terminals with
a reflection factor of 2.0
1350 V
1550 V
1550 V
1680 V
1934 V
2140 V
2320 V