Siemens SINAMICS S120 Combi User Manual

Cabinet design and EMC
13.9 Note on control cabinet cooling
SINAMICS S120 Combi
264 Manual, Edition 07/2012, 6SL3097-4AV00-0BP3
13.9.4.5 Electronics losses of power units
Table 13- 20 Electronics losses for Motor Modules Booksize Compact and S120 Combi Power Modules
Component Power loss [W]
3 A 20.4
5 A 20.4
9 A 20.4
Single Motor Module
18 A 20.4
1.7 A 27.6
3 A 27.6
Double Motor Module
5 A 27.6
16 kW / 18 A / 5 A / 5 A 24.0
16 kW / 24 A / 9 A / 9 A 31.2
S120 Combi
3 axes Power Module
20 kW / 30 A / 9 A / 9 A 26.4
16 kW / 18 A / 9 A / 5 A / 5 A 24.0
16 k W 24 A / 9 A / 9 A / 9 A 31.2
S120 Combi
4 axes Power Module
20 kW / 30 A / 12 A / 9 A / 9 A 26.4
13.9.4.6 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 (Order 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)

Siemens SINAMICS S120 Combi Specifications

General

Brand	Siemens
Model	SINAMICS S120 Combi
Category	Control Unit
Language	English