Position In The Dc Link Configuration - Siemens SINAMICS G130 Engineering Manual

Standard load duty cycles of Central Braking Modules
With the given standard load duty cycles, the following rated power outputs result, when the upper response
threshold is selected and the Braking Units operate at the maximum possible DC link voltage:
Order number
Supply voltage 380 V – 480 V 3AC / DC link voltage 500 V – 720 V DC
6SL3700-1AE35-0AA1
6SL3700-1AE41-0AA1
Supply voltage 500 V – 600 V 3AC / DC link voltage 650 V – 900 V DC
6SL3700-1AF35-5AA1
6SL3700-1AF41-1AA1
Supply voltage 660 V – 690 V 3AC / DC link voltage 850 V – 1035 V DC
6SL3700-1AH36-3AA1
6SL3700-1AH41-2AA1
Braking power ratings for standard load duty cycles

Position in the DC link configuration

The Central Braking Modules must be positioned directly between the largest Power Units in the DC link
configuration, preferably next to the Line Module. A sequence with several Central Braking Modules located directly
next to one another in order to increase the braking power by parallel operation is not permissible. In this case it has
to be ensured, that larger Motor Modules are installed between the Central Braking Modules.
If continuous braking operation is required, direct installation of Central Braking Modules next to small Motor Modules
with small internal DC link capacitance should be avoided as the resulting DC link currents during braking operation
can overload the DC link capacitors of the small Motor Modules and the Braking Unit itself. This can result in
significantly reduced lifetime of these units.
Particular care should be taken to ensure that Power Units located next to the Central Braking Modules are not
permanently disconnected from the DC link configuration by means of a DC switch (option 37). The disconnection is
only allowed for a short time, e.g. for repair or maintainance purposes. If the disconnection is required for a longer
time, the Central Braking Module should be deactivated.
Braking power of Central Braking Modules
P P
15 150
730 kW 500 kW
1380 kW 1000 kW
830 kW 550 kW
1580 kW 1050 kW
920 kW 630 kW
1700 kW 1200 kW
SINAMICS S120 Cabinet Modules
Engineering Information
P P
270 DB
300 kW 200 kW
580 kW 370 kW
340 kW 220 kW
650 kW 420 kW
380 kW 240 kW
720 kW 460 kW
SINAMICS Engineering Manual - May 2008
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