SIEMENS
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Siemens NC 62 · 2016
Main spindle motors
SIMOTICS M synchronous motors for SINAMICS S120
SIMOTICS M-1FE synchronous built-in motors
6
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Application
The water-cooled SIMOTICS M-1FE built-in motors are used in
combination with the SINAMICS S120 drive system for applica-
tions that require the highest quality of machining, accuracy and
running smoothness, as well as very short ramp-up times.
There are two main versions of SIMOTICS M-1FE built-in motor
available:
•
High-Torque series
6-pole/8-pole and 16-pole synchronous motors are available
that have been developed for turning and grinding machines
with moderate maximum speeds.
These motors are characterized by an extremely high torque
utilization. In this case, the speed range is approximately 1:2.
•
High-Speed series
This series includes 4-pole synchronous motors for milling
applications. These motors are optimized for high maximum
speeds and a speed range of over 1:4.
A Voltage Protection Module VPM is required for certain motor
types if they are operated up to maximum speed.
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Design
The SIMOTICS M-1FE built-in motor comprises:
•
A laminated, permanent-field rotor, which, as an option, can
be designed with a sleeve for simple mounting and removal.
•
A wound stator core with cooling jacket and encapsulated
winding overhang
- Free cable ends, length 0.5/1.5 m (1.64 ft/4.92 ft)
- Two integral PTC thermistors (incl. 1 spare), optionally with
full or universal protection
- A cooling jacket into which the stator has been inserted.
Rotor with sleeve
Torque is transmitted to the spindle mechanically without back-
lash by means of a cylindrical stepped press fit. The rotor is
mounted on the spindle by thermal shrinking.
The rotor with sleeve is pre-balanced and can be removed
and subsequently remounted. The bond can be released by
pressure-oil injection without affecting the joint surfaces.
Rotor without sleeve
Torque is transmitted to the spindle mechanically without back-
lash by means of a cylindrical stepped press fit. The rotor is
mounted on the spindle by thermal shrinking.
Removal of the rotor is not possible with this type of mounting.
Rotors without sleeves are not pre-balanced.
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Technical specifications
G_NC01_EN_00148b
Hollow shaft
Annular jacket
cooling channel
Rotor
Rotor sleeve
Air gap
stator
Product name
SIMOTICS M-1FE
built-in motor
Type of machine
Synchronous spindle with
permanent-field rotor
Range of constant power
1:2 (6-/8-/16-pole)/1:4 (4-pole)
Recommended coolant inlet
temperature, approx.
25 °C (77 °F)
Standard protection
temperature monitoring
2 KTY thermistors in the stator
winding, 1 x spare
Full protection
optional
Application example:
Machining when motor is
stationary
In addition to standard
protection
3
×
PTC thermistor triplet
Evaluation option, e.g. using
thermal motor protection:
Article No.: 3RN1013-1GW10
Universal protection
optional
Full protection +
NTC PT3-51F + NTC K227
Stator winding insulation
in accordance with
EN 60034-1 (IEC 60034-1)
Temperature class 155 (F)
for a coolant inlet temperature
of 25 °C (77 °F)
Type of construction (cf. ISO)
Individual components:
Stator, rotor
Degree of protection
in accordance with IEC 60034-5
IP00
Balance quality of rotor
in accordance with ISO 1940-1
• Rotor with sleeve
Version specific
- Pre-balanced,
balance quality G 2.5
Reference speed 3600 rpm
- Non-balanced for full
balancing after assembly
• Rotor without sleeve
Non-balanced
Encoder system
(not included in scope of supply)
Hollow-shaft measuring system
with
sinusoidal voltage signals 1 V
pp
and with zero mark
Motor connection
Free cable ends,
length 0.5/1.5 m (1.64 ft/4.92 ft)
Rating plate
2 units enclosed separately
© Siemens AG 2016