Siemens SIMOTICS Series Hardware Installation Manual

SIMOTICS M-1FE2 built-in motors
Hardware Installation Manual, 04/2020, A5E50074509B AA
57
Motor components, characteristics and options
4
4.1 Thermal motor protection
The stator winding can be supplied with the following motor protection to sense (measure)
and monitor the motor temperature:
Standard protection:
Temperature sensors (2 x Pt1000);
2x2 conductors in a protective sleeve; protective sleeve diameter
3 mm; conductor cross-section 0.22/0.14 mm²
Full protection (option):
Temper
ature sensors + PTC thermistor triplet (3 sensors in se-
ries) (2 x Pt1000 + 1 x PTC180
C)
in addition to standard protection: 1x2 conductors in a protective
sleeve; protective sleeve diameter 3
mm; conductor cross-
section
0.22/0.14 mm²
Universal p
rotection (op-
tion):
Temperature sensors + PTC thermistor triplet + NTC thermistor
(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
Note
If water
-cooled built-
in motors are operated for longer than one minute at a standstill with the
standstill torque, one phase can be disproportionately loaded thermally.
•
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
2
t monitoring of the drive system.
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.

Siemens SIMOTICS Series Specifications

General

Brand	Siemens
Model	SIMOTICS Series
Category	Engine
Language	English