Siemens SINAMICS S120 Equipment Manual page 148

DC link components
10.2 Braking resistors
Figure 10-6
T [s] period duration of braking duty cycle
A [s] load duration
P [W] continuous braking power of braking resistor
n
P
max
Table 10-5 Example of duty cycles
Unit
A s
T s
Table 10-6 Technical Specifications
Unit
P kW
max
P kW
n
Weight kg
Degree of protection
Connection cables
A shielded connection cable (3 m long; 1.5 mm
6SN1113 1AA00-0DA0.
Braking resistor 6SL3100-1BE31-0AA0 is supplied without a connection cable (4 mm
The maximum cable length for both braking resistors is 10 m.
10-12
Duty cycle for braking resistors
[W] peak braking power of braking resistor
Short duty cycle
0.1
11.5
Braking resistor
6SN1113–1AA00–0DA0
25
0.3
3.4
IP54
R 25 kW
Long duty cycle
0.4
210
) is supplied with braking resistor
2
Equipment Manual Booksize Cold-Plate Power Sections
Manual, (GH4), Edition 06.2005, 6SL3097-2AJ00-0BP2
R 100 kW
Short duty cycle Long duty cycle
1 2
68 460
Braking resistor
6SL3100–1BE31–0AAx
100
1.5
5.6
IP20
).
2