SINAMICS G130 built-in units and the associated system components are rated for an ambient temperature of 40 °C and installation altitudes up to 2000 m above sea level.
At ambient temperatures > 40 °C, the output current must be reduced. Ambient temperatures above 55 °C are not permissible.
At installation altitudes > 2000 m above sea level, it must be taken into account that the air pressure, and therefore air density, decreases as the height increases. As a consequence, the cooling efficiency and the insulation capacity of the air also decrease.
Due to the reduced cooling efficiency, it is necessary, on the one hand, to reduce the ambient temperature and on the other hand, to reduce the heat loss in the built-in unit by reducing the output current, whereby ambient temperatures lower than 40 °C may be offset to compensate.
The following table lists the permissible output currents depending on the installation altitude and ambient temperature. The specified values already include a permitted compensation in respect of installation altitude and ambient temperatures < 40 °C (temperature at the air intake of the built-in unit).
The values apply under the precondition that a cooling air flow through the devices is guaranteed as specified in the technical specifications.
As additional measure for installation altitudes from 2000 m up to 5000 m, an isolating transformer is required in order to reduce transient overvoltages according to EN 60664?1.
For further information, please refer to the SINAMICS Low Voltage Engineering Manual.
Current derating factors for built-in units depending on the ambient / air intake temperature and the installation altitude
Installation altitude above sea level
Current derating factor (as a percentage of the rated current) for an ambient / air intake temperature of
m
20 °C
25 °C
30 °C
35 °C
40 °C
45 °C
50 °C
55 °C
0 ... 2000
100%
100%
100%
100%
100%
93.3%
86.7%
80%
2001 ... 2500
100%
100%
100%
100%
96.3%
2501 ... 3000
100%
100%
100%
98.7%
3001 ... 3500
100%
100%
100%
3501 ... 4000
100%
100%
96.3%
4001 ... 4500
100%
97.5%
4501 ... 5000
98.2%
Current derating depending on the pulse frequency
To reduce motor noise or to increase output frequency, the pulse frequency can be increased relative to the factory setting (1.25 kHz or 2 kHz). When the pulse frequency is increased, the derating factor of the output current must be taken into account. This derating factor must be applied to the currents specified in the technical specifications.
For further information, please refer to the SINAMICS Low Voltage Engineering Manual.
Derating factor of the output current depending on the pulse frequency for devices with a rated pulse frequency of 2 kHz
Article No.
Type rating
Output current
at 2 kHz
Derating factor for pulse frequency
6SL3310-...
kW
A
2.5 kHz
4 kHz
5 kHz
7.5 kHz
8 kHz
380 ... 480 V 3 AC
1GE32-1AA3
110
210
95%
82%
74%
54%
50%
1GE32-6AA3
132
260
95%
83%
74%
54%
50%
1GE33-1AA3
160
310
97%
88%
78%
54%
50%
1GE33-8AA3
200
380
96%
87%
77%
54%
50%
1GE35-0AA3
250
490
94%
78%
71%
53%
50%
Derating factor of the output current depending on the pulse frequency for devices with a rated pulse frequency of 1.25 kHz
Article No.
Type rating
Output current
at 1.25 kHz
Derating factor for pulse frequency
6SL3310-...
kW
A
2 kHz
2.5 kHz
4 kHz
5 kHz
7.5 kHz
380 ... 480 V 3 AC
1GE36-1AA3
315
605
83%
72%
64%
60%
40%
1GE37-5AA3
400
745
83%
72%
64%
60%
40%
1GE38-4AA3
450
840
87%
79%
64%
55%
40%
1GE41-0AA3
560
985
92%
87%
70%
60%
50%
500 ... 600 V 3 AC
1GF31-8AA3
110
175
92%
87%
70%
60%
40%
1GF32-2AA3
132
215
92%
87%
70%
60%
40%
1GF32-6AA3
160
260
92%
88%
71%
60%
40%
1GF33-3AA3
200
330
89%
82%
65%
55%
40%
1GF34-1AA3
250
410
89%
82%
65%
55%
35%
1GF34-7AA3
315
465
92%
87%
67%
55%
35%
1GF35-8AA3
400
575
91%
85%
64%
50%
30%
1GF37-4AA3
500
735
87%
79%
64%
55%
35%
1GF38-1AA3
560
810
83%
72%
61%
55%
35%
660 ... 690 V 3 AC
1GH28-5AA3
75
85
93%
89%
71%
60%
40%
1GH31-0AA3
90
100
92%
88%
71%
60%
40%
1GH31-2AA3
110
120
92%
88%
71%
60%
40%
1GH31-5AA3
132
150
90%
84%
66%
55%
35%
1GH31-8AA3
160
175
92%
87%
70%
60%
40%
1GH32-2AA3
200
215
92%
87%
70%
60%
40%
1GH32-6AA3
250
260
92%
88%
71%
60%
40%
1GH33-3AA3
315
330
89%
82%
65%
55%
40%
1GH34-1AA3
400
410
89%
82%
65%
55%
35%
1GH34-7AA3
450
465
92%
87%
67%
55%
35%
1GH35-8AA3
560
575
91%
85%
64%
50%
35%
1GH37-4AA3
710
735
87%
79%
64%
55%
35%
1GH38-1AA3
800
810
83%
72%
61%
55%
35%
Note:
The derating factors for pulse frequencies in the range between the specified fixed values can be determined by linear interpolation.
Overload capability
The SINAMICS G130 converters have an overload reserve in order to overcome breakaway torques, for example. If larger surge loads occur, this must be taken into account in the configuration. For drives with overload requirements, the appropriate base load current must, therefore, be used as a basis for the required load.
The criterion for overload is that the drive is operated with its base load current before and after the overload occurs on the basis of a duty cycle duration of 300 s.
The base load current for a low overload IL is based on a duty cycle of 110% for 60 s or 150% for 10 s.
The base load current for a high overload IH is based on a duty cycle of 150% for 60 s or 160% for 10 s.
Low overload
High overload
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