Siemens SIMOTICS S-1FK2 Series User Manual

Configuration
5.4 Braking resistor (armature short-circuit braking)
1FK2 synchronous motors for SINAMICS S120
62 Configuration Manual, 06/2019, A5E46927724B AB
The data in the following tables is calculated for rated values according to the data sheet.
The variance during production as well as iron saturation have not been taken into account
here. Higher currents and torques than those calculated can occur as a result of the
saturation.
WARNING
Risk of fire caused by continuous overload
If the external braking resistor is continuously overloaded, for example as the result of a
defective braking chopper, this can cause an explosion or fire - resulting in death or severe
injury and/or could cause the housing to melt.
• Use only braking resistors that are intrinsically safe.
Table 5- 3 Dynamic braking for 1FK2
Motor variant
Braking
resistor,
external
R
opt
/ Ω
Average braking torque
Maximum
braking torque
M
br max
/ Nm
rms braking current
Without external
Braking resistor
M
br rms
/ Nm
With external
braking resistor
M
br rms
( R
opt
) / Nm
Without external
Braking resistor
I
br rms
/ A
With external
Braking resistor
I
br rms
( R
opt
) / A
1FK2104-4AF
21
0.75
1.1
1.35
2.2
2.0
1FK2104-5AF
12.5
1.35
2.3
2.9
4.3
3.9
1FK2104-6AF
8.5
1.75
3.1
3.8
6.0
5.5
1FK2105-4AF
6.5
1.7
4.0
5.0
8.5
7.5
1FK2105-6AF
5.0
2.7
6.5
8.0
12.0
11.0
1FK2204-5AF
6.0
2.4
3.3
4.1
7.0
6.0
1FK2204-6AF
4.6
3.1
4.4
5.5
9.5
8.5
1FK2205-2AF
3.8
5.0
6.5
8.0
11.0
10.0
1FK2205-4AF
2.6
8.0
10.5
13.0
18.0
16.5
1FK2206-2AF
6.5
2.6
5.4
6.8
9.6
8.6
1FK2206-4AF
3.85
5.9
12.8
15.9
19.3
17.3
1FK2208-3AC
4.0
7.4
16.5
20.5
17.6
15.7
1FK2208-4AC
2.3
9.7
22.5
28.0
27.0
24.5
1FK2208-5AC
1.74
12.3
28.5
35.5
35.5
31.5
1FK2210-3AC
1.99
10.2
30.5
38.0
35.0
31.0
1FK2210-4AC
2.6
13.1
41.5
51
35.5
32.0
1FK2210-5AC
1.43
16.7
53
66
54
48.5
1FK2306-2AC
9.8
3.3
5.5
6.9
6.1
5.5
1FK2306-4AC 7.0 7.4 12.9 16.1 11.2 10.1
1FK2308-3AB
4.8
9.5
17.6
22
13.9
12.5
1FK2308-4AB
3.9
12.6
23.5
29.5
18
16.2
Note
Braking resistor with temperature monitoring
Use only a braking resistor with temperature monitoring.

Siemens SIMOTICS S-1FK2 Series Specifications

General

Brand	Siemens
Model	SIMOTICS S-1FK2 Series
Category	Servo Drives
Language	English