Configuration Manual AC Induction Motors 1PH4 - Siemens ...
Configuration Manual AC Induction Motors 1PH4 - Siemens ...
Configuration Manual AC Induction Motors 1PH4 - Siemens ...
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Motor Components<br />
3.1 Thermal motor protection<br />
!<br />
Table 3-1 Features and technical data<br />
Type KTY 84<br />
Resistance when cold (20 °C) Approx. 580 Ohm<br />
Resistance when hot (100 °C) Approx. 1000 Ohm<br />
Connection Using the encoder cable<br />
Response temperature Prewarning at 120 °C<br />
Shutdown at 155 °C � 5 °C<br />
The resistance change is proportional to the winding temperature change. For 1PH<br />
motors, the temperature characteristic is taken into account in the closed–loop<br />
control.<br />
The prewarning signal from the evaluation circuit in the SIMODRIVE drive converter<br />
can be externally evaluated.<br />
High short–time overload conditions require additional protective measures. This is<br />
due to the thermal coupling time of the sensor. If the overload condition (4 � M0)<br />
lasts longer than 4 s, additional protection should be provided.<br />
The temperature sensor cables are included in the encoder cable.<br />
Warning<br />
If the user carries–out an additional high–voltage test, then the ends of the<br />
temperature sensor cables must be short–circuited before the test is carried–out!<br />
If the test voltage is connected to only one terminal of the temperature sensor, it<br />
will be destroyed.<br />
© <strong>Siemens</strong> AG 2003 – 2006 All rights reserved<br />
<strong>AC</strong> <strong>Induction</strong> <strong>Motors</strong>, <strong>1PH4</strong> (APH4) – 04.06 Edition<br />
3<br />
3-57
Change language