SIEMENS
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Siemens D 31 N · March 2016
4
SINAMICS G120C compact inverters
0.55 kW to 18.5 kW (0.75 hp to 25 hp)
DC link components
> Braking resistors
■
Overview
Braking resistor for SINAMICS G120C, frame size FSB
The excess energy of the DC link is dissipated using the braking
resistor. The braking resistors are designed for use with the
SINAMICS G120C. SINAMICS G120C has an integrated brake
chopper and cannot feed back regenerative energy to the line
supply. For regenerative operation, e.g. the braking of a rotating
mass with high moment of inertia, a braking resistor must be
connected to convert the resulting energy into heat.
The braking resistors are designed for mounting horizontally or
vertically onto a heat-resistant sheet steel panel. The resistors
should be mounted such as to ensure that the air can flow in and
out and heat cannot build up. The heat dissipated by the braking
resistor must not diminish the inverter cooling.
Every braking resistor is equipped with a temperature switch.
The temperature switch can be evaluated to prevent conse-
quential damage if the braking resistor overheats.
■
Selection and ordering data
■
Characteristic curves
Load diagram for the braking resistors
t
a
= 12 s
t
= 240 s
Rated power
SINAMICS G120C
Braking resistor
kW
hp
Type
6SL3210-...
Frame
size
Article No.
Line voltage 380 ... 480 V 3 AC
0.55
0.75
1KE11-8..2
FSAA
6SL3201-0BE14-3AA0
0.75
1
1KE12-3..2
1.1
1.5
1KE13-2..2
1.5
2
1KE14-3..2
2.2
3
1KE15-8..2
FSAA
6SL3201-0BE21-0AA0
3
4
1KE17-5..1
FSA
4
5
1KE18-8..1
5.5
7.5
1KE21-3..1
FSB
6SL3201-0BE21-8AA0
7.5
10
1KE21-7..1
11
15
1KE22-6..1
FSC
6SL3201-0BE23-8AA0
15
20
1KE23-2..1
18.5
25
1KE23-8..1
a
P
P
P
G_D211_EN_00038b
max
DB
© Siemens AG 2016