Planning Guide AC Servomotors 1FT5 - Siemens Automation and ...
Planning Guide AC Servomotors 1FT5 - Siemens Automation and ...
Planning Guide AC Servomotors 1FT5 - Siemens Automation and ...
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Motor Components (Options)<br />
3.1 Thermal motor protection<br />
A temperature sensor is integrated in the stator winding to sense the motor temperature<br />
<strong>and</strong> provide thermal motor protection.<br />
Temperature sensor, type Q63100–P426–M135<br />
Characteristics acc. to DIN 44081<br />
Characteristics PTC thermistor<br />
Use For motors with the following shaft heights:<br />
� shaft heights 36 <strong>and</strong> 48: 2 integrated PTC<br />
thermistors (in series)<br />
� shaft heights 63 <strong>and</strong> 132: one integrated<br />
PTC thermistor<br />
Resistance when cold (20 � C): � 250 Ω<br />
Response temperature: 155 � C �5 � C<br />
Connection: via the encoder cable<br />
The change in resistance is not proportional to the change in the winding temperature.<br />
The evaluation circuit signal in the SIMODRIVE drive converter must externally<br />
evaluated.<br />
© <strong>Siemens</strong> AG 2003 All rights reserved<br />
<strong>AC</strong> <strong>Servomotors</strong> <strong>1FT5</strong> (PFT5) – 05.03 Edition<br />
3<br />
High short–term overload conditions require additional protective measures as a<br />
result of the thermal coupling time of the sensor.<br />
The cables for the temperature sensor are included in the pre–assembled encoder<br />
cable.<br />
<strong>1FT5</strong>/3-77
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