Siemens SINAMICS S150 Operating Instructions Manual page 480

Technical specifications
12.2 General technical specifications
Order no.
6SL3710-...
7LG28-5AA0
7LG31-0AA0
7LG31-2AA0
7LG31-5AA0
7LG31-8AA0
7LG32-2AA0
7LG32-6AA0
7LG33-3AA0
7LG34-1AA0
7LG34-7AA0
7LG35-8AA0
7LG37-4AA0
7Lg38-1AA0
7LG38-8AA0
7LG41-0AA0
7LG41-3AA0
For pulse frequencies in the range between the fixed values, the relevant derating factors
can be determined by means of linear interpolation.
The following formula applies for this:
Example:
The derating factor is required for when X
X = 1.25 kHz, Y
0
100 %
?? %
75 %
50 %
25 %
Figure 12-1
480
Power [kW] Output current
at 1.25 kHz [A]
Supply voltage 500 – 690 V 3 AC
75
90
110
132
160
200
250
315
400
450
560
710
800
900
1000
1200
= 100%, X
0 1
87 %
Calculating derating factors by means of linear interpolation
85
100
120
150
175
215
260
330
410
465
575
735
810
910
1025
1270
= 2 kHz for 6SL3710-1LE41-0AA0.
2
= 2.5 kHz, Y = 87%, X
1
60 %
f
Derating factor
at 2.5 kHz
89%
88%
88%
84%
87%
87%
88%
82%
82%
87%
85%
79%
95%
87%
86%
79%
= 2 kHz, Y = ??
2 2
Drive converter cabinet units
Operating Instructions, 07/07, A5E00288214A
Derating factor
at 5 kHz
60%
60%
60%
55%
60%
60%
60%
55%
55%
55%
50%
55%
55%
55%
50%
40%