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Siemens D 21.4 · 2017
SINAMICS S120 drive system
Chassis format
DC link components for chassis format
> Braking Modules
7
■
Integration
Connection example of a Braking Module
■
Characteristic curves
Load diagram for Braking Modules and braking resistor
Braking Module
21.6
21.5
21.4
21.3
21.2
21.1
X21
+24 V
0 V
0 V
R1
DCNA
R2
DCPA
T1
T2
Fault
G_D211_EN_00012a
DC link
connection terminals
Inhibit
Fault output
Inhibit input
Shield
Braking resistor
15
P
20
P
40
P
15
P
20
P
40
P
15
s
100
90
80
70
60
50
40
30
20
10
t
P
/
P
20
G_D011_EN_00328
= Rated power
DB
DB
DB
= 5 x
P
= Power which is permissible every 90 s for 15 s
= 4 x
P
= Power which is permissible every 90 s for 20 s
= 2 x
P
= Power which is permissible every 90 s for 40 s
DB
P
DB
1.25
1.50
0.25
0
0.50
0.75
1.00
P
© Siemens AG 2017