Siemens SINAMICS S220

4.13.2 Calculating the power loss for Motor Modules in typical applications
Overview
The information on the power losses in the previous chapters are maximum values, which occur
in the most unfavorable case. For typical applications, the losses are lower.
The following applies as typical application:
• Maximum motor cable length, 30m
• 4kHz pulse frequency
• DC link voltage 540V - 600V
Description
Power losses for typical applications can be calculated based on the following formula:
P
V
[W] =a+S
1
•(I
1
+I
2
)+S
2
•(I
1
2
+I
2
2
)
a Electronics losses of the Motor Module
S
1
, S
2
Coe󹪟cients to calculate power loss
I
1
Current (arithmetic mean value) of the 1st axis
I
2
Current (arithmetic mean value) of the 2nd axis
Overview of required coe󹪟cients
Table 4-17 Coe󹪟cients to calculate the power loss in the control cabinet for Motor Modules for
typical applications
Motor Module a [W] S
1
[W/A] S
2
[W/A
2
]
Single Motor Module 3A 17 3.29 0.205
Single Motor Module 5A 18 3.29 0.205
Single Motor Module 9A 19 3.29 0.205
Single Motor Module 18A 24 3.29 0.205
Single Motor Module 24A 24 3.50 0.140
Single Motor Module 30A 18 4.71 0.113
Single Motor Module 30A (slim) 29 4.71 0.113
Single Motor Module 45A 24 4.40 0.060
Single Motor Module 60A 24 4.40 0.055
Single Motor Module 85A 125 6.01 0.017
Single Motor Module 132A 125 6.01 0.017
Single Motor Module 200A 125 6.01 0.017
Double Motor Module 2x3A 24 5.20 0.200
Double Motor Module 2x5A 26 5.20 0.200
Double Motor Module 2x9A 26 5.18 0.247
Double Motor Module 2x18A 23 5.57 0.091
Double Motor Module 2x18A (slim) 31 5.57 0.091
Application planning
4.13Power losses
Booksize power units
62 Equipment Manual, 09/2023, A5E53307519B AA