Siemens SINAMICS S120 - Characteristic Curves

DC link components
8.2 Braking Module Booksize
Booksize Power Units
Manual, (GH2), 07/2016, 6SL3097-4AC00-0BP8
497
6SL3100-1AE31-0AB.
ON threshold
V
770
Electronics power supply V
DC
24 (20.4 … 28.8)
Electronics current consumption (at 24 V DC)
A
DC
0.5
Current carrying capacity
DC link busbars
24 V busbars
A
DC
A
DC
100
20
Braking power
Maximum
continuous braking power
kW
kW
100
1.5
Power loss (see power loss tables (Page 756))
W
20
Cooling method
Natural convection
Weight
kg
4.1
8.2.8.1
Characteristic curves
Duty cycle for braking resistors without a thermostatic switch
Figure 8-5 Duty cycle for braking resistors without a thermostatic switch
T [s] time period of braking duty cycle
A [s] load duration
P
N
[kW] rated power (continuous power) of the braking resistor
P
max
[kW] peak power of braking resistor (6 x P
N
)
Table 8- 6 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