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Motor components, characteristics and options
4.1
Motor components
4.1.1
Thermal motor protection
The stator winding can be supplied with the following motor protection to sense
(measure) and monitor the motor temperature:
Standard protection:
Full protection (option):
Universal protection (op-
tion):
Note
If water-cooled synchronous built-in motors are operated for longer than one minute in
standstill with the standstill torque, a phase can be thermally loaded overproportionately.
• Reduce the permanent standstill torque by up to 20 %.
• Protect the winding thermally with a thermistor triplet (PTC) with an external trip unit
or with an I
NOTICE
Thermal damage to temperature-sensitive parts
Some parts of the electric motor enclosure can reach temperatures > 100 °C. If
temperature-sensitive parts, e.g. electric cables or electronic components, come into
contact with hot surfaces, these parts could be damaged.
• Ensure that no temperature-sensitive parts are in contact with hot surfaces.
SIMOTICS M-1FE1 synchronous built-in motors
Configuration Manual, 09/2019, A5E47872980B AA
Temperature sensors (2 x Pt1000);
2x2 conductors in a protective sleeve; protective sleeve diame-
ter 3 mm; conductor cross-section 0.22/0.14 mm²
Temperature sensors + PTC thermistor triplet (3 sensors in
series) (2 x Pt1000 + 1 x PTC180 C)
in addition to standard protection: 1x2 conductors in a protec-
tive sleeve; protective sleeve diameter 3 mm; conductor cross-
section 0.22/0.14 mm²
Temperature sensors + PTC thermistor triplet + NTC thermis-
tor (2 x Pt1000
+ 1 x PTC180 C + NTC PT3-51F + NTC K227/33k/A1;
in addition to full protection: 2x2 conductors in a protective
sleeve; protective sleeve diameter 3 mm; conductor cross-
section 0.22/0.14 mm²
t monitoring of the drive system.
2
4
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