Siemens EH675TK11E - Page 21

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3.4.3 Function of NTCs for electronic module
These measure the temperature of the IGBTs (insulated-gate bipolar
transistor, the element that supplies power to the electronic module)
and cut off the power supply if they reach the maximum temperature.
IGBTs.
[1] IH4-I.2
[2] IH5-I
[3] IH5-I critical modules
115 135
100%
Potencia
105 T [ºC]
15%
30%
NTC OP/SC
[1] IH4-I.2
[2] IH5-I
[3] IH5-I critical modules
115 135
100%
Potencia
105 T [ºC]
15%
30%
NTC OP/SC
115 135
100%
Potencia
105105 T [ºC]
15%15%
30%
NTC OP/SCNTC OP/SC
Power