Siemens SINAMICS S120 Combi - Page 303

Cabinet design and EMC
12.8 Note on control cabinet cooling
SINAMICS S120 Combi
Manual, 11/2017, 6SL3097-4AV00-0BP7
303
Table 12- 21 Overview of the coefficients to calculate the total power loss P
V
in the partial-load range
Power Module
a
b
IN1
S1
S2
S3
S4
3 axes Power Module
16 kW / 18 A 36 19.2 11.05 7.1 6.5 6.5 -
16 kW / 24 A
36
19.2
11.2
7.2
7.2
7.2
-
20 kW / 30 A 36 19.2 11.5 7.3 7.2 7.2 -
4-axis Power Module
10 kW / 24 A
38.4
19.2
9.1
14.3 / 7.2
1)
7.7
7.7
7.7
16 kW / 18 A
38.4
19.2
11.05
7.1
7.2
6.5
6.5
16 kW / 24 A
38.4
19.2
11.4
7.2
7.2
7.2
7.2
20 kW / 30 A
38.4
19.2
11.7
7.3
7.7
7.2
7.2
1)
For a pulse frequency of 4 kHz / 8 kHz
Table 12- 22 Overview of the coefficients to calculate the power loss P
V
in the control cabinet for external cooling
Power Module
a
b
IN1
S1
S2
S3
S4
3 axes Power Module
16 kW / 18 A
36
0
1.95
0.6
0.4
0.4
-
16 kW / 24 A
36
0
2.1
0.6
0.4
0.4
-
20 kW / 30 A
36
0
2.03
0.6
0.4
0.4
-
4-axis Power Module
10 kW / 24 A
38.4
0
3.3
1.2 / 0.6
1)
0.4
0.4
0.4
16 kW / 18 A
38.4
0
1.95
0.6
0.4
0.4
0.4
16 kW / 24 A
38.4
0
2.3
0.6
0.4
0.4
0.4
20 kW / 30 A
38.4
0
2.23
0.6
0.4
0.4
0.4
1)
For a pulse frequency of 4 kHz / 8 kHz
Losses in the partial-load range for line reactors
The losses of the line reactors in partial-load operation can be calculated using the following
formula:
P
V
= D1 * P1
D1: Coefficient to calculate the power loss
P1: Infeed power [kW]
Table 12- 23 Overview of the coefficients to calculate the power loss P
V
in the partial-load range
Line reactor
D1
6SL3100-0EE21-6AA0 (10 kW)
5.5
6SL3100-0EE21-6AA0 (16 kW)
4.7
6SL3100-0EE22-0AA0 (20 kW)
4.9