Siemens SIMOTICS S-1FK2 Configuration Manual page 81

Motor type Braking re‐
sistor, exter‐
nal
R
opt
1FK2204-5AK
1FK2204-6AF
1FK2205-2AF
1FK2205-4AF
1FK2206-2AF
1FK2206-4AF
1FK2208-3AC
1FK2208-4AC
1FK2208-5AC
1FK2210-3AB
1FK2210-3AC
1FK2210-4AB
1FK2210-4AC
1FK2210-5AC
1FK2306-2AC
1FK2306-4AC
1FK2308-3AB
1FK2308-4AB
Note
Braking resistor with temperature monitoring
Use only a braking resistor with temperature monitoring.
1FK2 Synchronous Motors for SINAMICS S120
Configuration Manual, 02/2022, A5E46927724B AD
Average braking torque
Without exter‐
nal
Braking resis‐
tor
/ Ω
M / Nm
br rms
1.5 2.4
4.6 3.1
3.8 5
2.6 8
6.5 2.6
3.85 5.9
4 7.4
2.3 9.7
1.74 12.3
4.5 12.2
1.99 10.2
3.1 15.9
2.6 13.1
1.43 16.7
9.8 3.3
7 7.4
4.8 9.5
3.9 12.6
5.4 Brake resistances (armature short-circuit braking)
Maximum
braking tor‐
With external
que
braking resistor
M (R ) / Nm
M
br rms opt
br max
3.3
4.4
6.5
10.5
5.4
12.8 15.9
16.5 20.5
22.5
28.5 35.5
30.5
30.5
41.5
41.5
53
5.5
12.9 16.1
17.6
23.5 29.5
rms braking current
Without exter‐
nal
Braking resis‐
/ Nm
tor
I / A
br rms
4.1 13.5
5.5 9.5
8 11
13 18
6.8 9.6
19.3
17.6
28 27
35.5
38 19.7
38 35
52 28
51 35.5
66 54
6.9 6.1
11.2
22 13.9
18
Configuration
With external
Braking resis‐
tor
I (R ) / A
br rms opt
12.5
8.5
10
16.5
8.6
17.3
15.7
24.5
31.5
17.7
31
25
32
48.5
6.5
10.1
12.5
16.2
79