Characteristic Curves - Siemens SINAMICS S120 System Manual

6.2.8.2

Characteristic curves

Duty cycle for braking resistors without a thermostatic switch
Figure 6-12
T [s] time period of braking duty cycle
A [s] load duration
P [kW] rated power (continuous power) of the braking resistor
N
P
max
Table 6- 15 Duty cycles
Short duty cycle
A [s] 0.1
T [s] 11.5
Duty cycles for braking resistors with a thermostatic switch
Figure 6-13
T [s] time period of braking duty cycle
A [s] load duration
P [kW] rated power (continuous power) of the braking resistor
N
P
max
4 x P
High Frequency Drive
System Manual, (SH2), 04/2015, 6SL3097-4AH10-0BP3
Duty cycle for braking resistors without a thermostatic switch
[kW] peak power of braking resistor (6 x P
6SN1113–1AA00–0DA0
Long duty cycle
0.4
46
Duty cycles for braking resistors with a thermostatic switch
[kW] peak power of braking resistor (6 x P
[kW] = power permitted every 90 s for 20 s
N
6.2 Braking Module Booksize Compact
)
N
6SL3100–1BE31–0AAx
Short duty cycle
1
68
)
N
Braking Modules
Long duty cycle
2
136
115