Characteristic Curves - Siemens SINAMICS S120 System Manual

7.4.1

Characteristic curves

Duty cycle for braking resistors without a thermostatic switch
Figure 7-6
T [s]: Period duration of braking duty cycle
A [s]: Load duration
P [W]: Rated power (continuous power rating) of the braking resistor
N
P
max
Table 7- 3 Duty cycles for Braking Module Booksize
Short duty cycle
A [s] 0.1
T [s] 11.5
Table 7- 4 Duty cycles for Braking Module Booksize Compact
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
High Frequency Drive
System Manual, (SH2), 04/2015, 6SL3097-4AH10-0BP3
Duty cycle for braking resistors without a thermostatic switch
[W]: Peak power of braking resistor (6 x P
6SN1113–1AA00–0DA0
Long duty cycle
0.4
210
6SN1113–1AA00–0DA0
Long duty cycle
0.4
210
= 0.9 x total P of single devices
N
= total P of single devices
max
)
N
6SL3100–1BE31–0AAx
Short duty cycle
1
68
6SL3100–1BE31–0AAx
Short duty cycle
1
68
Braking resistors
7.4 Technical data
Long duty cycle
2
460
Long duty cycle
2
460
125