Configuration Instructions - Siemens SINAMICS S120 Combi User Manual

Table 8- 6 Duty cycles
Short duty cycle
A [s] 0.1
T [s] 11.5
The following applies when connecting Braking Modules in parallel:
P
N total
P
max total
8.1.8.2

Configuration instructions

DC link capacitance
To operate the Braking Modules, a minimum capacitance is required in the DC link. The DC
link voltage of braking resistors is 440 μF each.
The capacitance of the Braking Module of 110 µF is included in the total capacitance value.
When booksize format Braking Modules are connected in parallel, the DC link capacitance
specified above must be available for each Braking Module.
Note
Only the components that are connected to each other via the DC link busbar can be
included in the total capacitance.
DC link cable
When using a Braking Module in the drive line-up, this DC link cable must not be longer than
10 m. In all cases, the DC link cable must have low impedance and a cross-section of at
least 10 mm
SINAMICS S120 Combi
Manual, Edition 07/2012, 6SL3097-4AV00-0BP3
6SN1113–1AA00–0DA0
Long duty cycle
0.4
210
= 0.9 x total P of single devices
N
= total P of single devices
max
.
2
8.1 Braking Module Booksize
6SL3100–1BE31–0AAx
Short duty cycle
1
68
DC link components
Long duty cycle
2
460
149