Siemens SINAMICS S120 Combi Equipment Manual

Cabinet design and EMC
12.9 Note on control cabinet cooling
SINAMICS S120 Combi
Manual, (GH9), 07/2016, 6SL3097-4AV00-0BP5
319
12.9.4.6
Losses in partial-load operation
Losses in the partial-load range for the S120 Combi
The losses of the S120 Combi in partial-load operation can be calculated using the following
formula:
P
V
= a + b + IN1 x P1 + S1 x I1 + S2 x I2 + S3 x I3 + S4 x I4
With:
a: Electronics losses of the S120 Combi
b: Electronics losses of the external fan unit (Article No.: 6SL3161-0EP00-0AA0)
IN1, S1 - S4: Coefficients to calculate the power loss
P1: Infeed power [kW] (LINE X1)
I1: Spindle current [A] (SPINDLE X2)
I2: Current of the 1st feed axis (servo X3)
I3: Current of the 2nd feed axis (servo X4)
I4: Current of the 3rd feed axis (servo X5)
Table 12- 22 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- 23 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

Siemens SINAMICS S120 Combi Specifications

General

Brand	Siemens
Model	SINAMICS S120 Combi
Category	Control Unit
Language	English