SIEMENS
SINAMICS G150 NEMA
Engineering information
4
Siemens D11.7
(Part 1) – 2013
Derating data
4/4
Current derating as a function of the pulse frequency
If the drive is set to operate at increased pulse frequencies,
the output current values listed in the technical specifications
must be derated in accordance with the tables below.
(Note that SINAMICS G150 can be set up to operate at
higher pulse frequencies when permitted by ambient
and load conditions, and automatically lower the pulse
frequency to avoid overtemperature – in this case derating
is not necessary).
Order no.
Output
(light overload)
at 460 V or 575 V, 60 Hz
Rated output current at 2 kHz
Derating factor at 4 kHz
HP
A
Supply voltage 380 V to 480 V 3 ph. AC
6SL3710-1GE32-1_U3
150
210
82 %
6SL3710-1GE32-6_U3
200
260
83 %
6SL3710-1GE33-1_U3
250
310
88 %
6SL3710-1GE33-8_U3
300
380
87 %
6SL3710-1GE35-0_U3
400
490
78 %
Derating factor of the output current as a function of the pulse frequency for devices with a rated pulse frequency
of 2 kHz
Derating factor of the output current as a function of the pulse frequency for devices with a rated pulse frequency
of 1.25
kHz
Order no.
Output
(light overload)
at 460 V or 575 V, 60 Hz
Rated output
current at 1.25 kHz
Derating factor
at 2.5 kHz
Derating factor
at 5 kHz
HP
A
Supply voltage 380 V to 480 V 3 ph. AC
6SL3710-1GE36-1_U3
500
605
72 %
60 %
6SL3710-1GE37-5_U3
600
745
72 %
60 %
6SL3710-1GE38-4_U3
700
840
79 %
60 %
6SL3710-1GE41-0_U3
800
985
87 %
60 %
Supply voltage 500 V to 600 V 3 ph. AC
6SL3710-1GF31-8_U3
150
175
87 %
60 %
6SL3710-1GF32-2_U3
200
215
87 %
60 %
6SL3710-1GF32-6_U3
250
260
88 %
60 %
6SL3710-1GF33-3_U3
300
330
82 %
55 %
6SL3710-1GF34-1_U3
400
410
82 %
55 %
6SL3710-1GF34-7_U3
450
465
87 %
55 %
6SL3710-1GF35-8_U3
600
575
85 %
55 %
6SL3710-1GF37-4_U3
700
735
79 %
55 %
6SL3710-1GF38-1_U3
800
810
72 %
55 %
Calculating derating factor by means of linear interpolation.
For intermediate values of pulse frequencies, the relevant derating factors can be determined by means of linear interpolation.
The following formula applies to this:
Y
2
= Y
0
+
Y
1
– Y
0
(X
2
– X
0
)
X
1
– X
0
Example:
The derating factor is required for when X
2
= 2 kHz for 6SL3710-1GE41-0_U0.
X
0
= 1.25 kHz, Y
0
= 100% X
1
, = 2.5 kHz
,
Y
1
= 87%, X
2
= 2 kHz, Y
2
= ??
Y
2
= 100% +
87% – 100%
(2 kHz – 1,25 kHz) =
2.5 kHz - 1,25 kHz
100% +
-13 %
(0,75 kHz)
= 100 % – 7,8 % = 92.2
%
1,25 kHz
Derating factor
100%
??%
75%
50%
25%
1,25 kHz
2 kHz
2.5 kHz
5 kHz
f
Pulse
87%
60%