Siemens SINAMICS G130 Engineering Manual page 171
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Also See for SINAMICS G130:
- List manual (1976 pages) ,
- Operating instructions manual (610 pages) ,
- Engineering manual (530 pages)
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Sensors at various locations in the converter (inlet air, control electronics, rectifier heatsink, inverter heatsink)
measure the relevant temperatures and feed them into the so-called "Thermal model". This continuously calculates
the temperature at critical positions on power components. In this way the converter is effectively protected against
thermal overloads, whether they are caused by excessive current or high ambient temperatures. The so-called "I
monitoring circuit checks the level of utilization of the motor-side inverter. If the level of inverter utilization or the
temperature at any point in the converter exceeds the upper tolerance limit, the converter responds by initiating an
overload reaction parameterized in the firmware. It is possible to select whether the converter should react to
overload by reducing the output frequency and output current or the pulse frequency. Immediate shutdown can also
be parameterized.
Maximum output frequencies
With SINAMICS G130 chassis units, the maximum output frequency is limited to 160 Hz resp. 100 Hz due to the pre-
set pulse frequency of f
Puls
increasing the pulse frequency. Due to the fact that with higher pulse frequency, switiching losses in the IGBT
inverters on the motor side increase, the output power must be reduced accordingly.
Permissible output current and maximum output frequency as a function of pulse frequency
Output power
Rated output current
at 400 V
500 V / 690 V
pulse frequency of
2 kHz
380 V – 480 V 3AC
110 kW
210 A
132 kW
260 A
160 kW
310 A
200 kW
380 A
250 kW
490 A
315 kW
-
400 kW
-
450 kW
-
560 kW
-
500 V – 600 V 3AC
110 kW
-
132 kW
-
160 kW
-
200 kW
-
250 kW
-
315 kW
-
400 kW
-
500 kW
-
560 kW
-
660 V – 690 V 3AC
75 kW
-
90 kW
-
110 kW
-
132 kW
-
160 kW
-
200 kW
-
250 kW
-
315 kW
-
400 kW
-
450 kW
-
560 kW
-
710 kW
-
800 kW
-
SINAMICS G130: Permissible output current as a function of pulse frequency
= 2.00 kHz resp. f
= 1.25 kHz. Higher output frequencies can only be reached by
Puls
Current derating-faktor
at
at
pulse frequency of
1,25 kHz
4 kHz
-
82 %
-
83 %
-
88 %
-
87 %
-
78 %
605 A
-
745 A
-
840 A
-
985 A
-
175 A
-
215 A
-
260 A
-
330 A
-
410 A
-
465 A
-
575 A
-
735 A
-
810 A
-
85 A
-
100 A
-
120 A
-
150 A
-
175 A
-
215 A
-
260 A
-
330 A
-
410 A
-
465 A
-
575 A
-
735 A
-
810 A
-
2,5 kHz
-
-
-
-
-
72 %
72 %
79 %
87 %
87 %
87 %
88 %
82 %
82 %
87 %
85 %
79 %
72 %
89 %
88 %
88 %
84 %
87 %
87 %
88 %
82 %
82 %
87 %
85 %
79 %
72 %
SINAMICS Engineering Manual - May 2008
SINAMICS G130
Engineering Information
171/396
© Siemens AG
2
t"
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