Siemens SINAMICS S120 Combi - Characteristic Curves

DC link components
7.2 Braking Module Booksize
SINAMICS S120 Combi
Manual, (GH9), 07/2016, 6SL3097-4AV00-0BP5
187
7.2.8.1
Characteristic curves
Duty cycle for braking resistors without a thermostatic switch
Figure 7-11 Duty cycle for braking resistors without a thermostatic switch
T [s] time period of braking duty cycle
A [s] load duration
P
N
[W] rated power (continuous power) of braking resistor
P
max
[W] peak power of braking resistor (6 x P
N
)
Table 7- 12 Duty cycles
6SN1113–1AA00–0DA0
6SL3100–1BE31–0AA.
Short duty cycle
Long duty cycle
Short duty cycle
Long duty cycle
A [s]
0.1
0.4
1
2
T [s]
11.5
210
68
460
The following applies when connecting Braking Modules in parallel:
P
N total
= 0.9 x total P
N
of single devices
P
max total
= total P
max
of single devices