SIEMENS
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Siemens D 83.1 · 2016
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Introduction
General technical specifications
Brakes and brake motors
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Overview
Three-phase brake motors with cage rotor
Due to the demands of modern manufacturing systems, the
brake motor has become a special drive component in machine
construction. In the rationalization of machines, in addition to the
requirement for higher working speeds in switching operation,
there is a demand for shortening the non-productive intervals.
The brake motor ensures short braking times for the rotating
masses, even with a high switching frequency. Another
important application of brake motors is in stopping loads and
reversing torques. The 1PS0 brake motor comprises a three-
phase induction motor that is combined with a brake in a single
unit.
Benefits
Thanks to its compact design, the brake motor is a useful
component in drive technology wherever minimum braking time
is a priority. The familiar advantages of the three-phase induction
motor with a squirrel-cage rotor are also retained. This brake
motor is suitable for multi-faceted customer-specific application
cases. It can be used both for switching operation at a high
switching frequency, a high follow-on accuracy and longer
service life and as a high-power brake motor with a large
operating capacity. The right brake size must be selected for the
application. The brake motor is also particularly suitable for
driving hoists and traversing gear.
The brake motors have the following properties:
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Short switching times
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High operational reliability
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A low motor flywheel effect
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Favorable dimensions
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Low space requirements
Application
The main application areas are as follows:
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Braking of loads and centrifugal masses
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Braking in the event of danger
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Shortening of follow-on times
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Increased setting accuracy
Brake motors are available as shown in the selection tables, but
also with higher power ratings, different voltages, frequencies
and numbers of poles as well as in pole-changing versions.
Design
Sectional drawing of brake motor type 1PS020 frame size 200 with single-disk spring-operated brake
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Toothed hub
NDE bearing plate
Rotor with brake pads
Complete manual release lever
Dust protection ring
Adjustment sleeve
Armature disk
Fan cover
Fan
Complete solenoid assembly
Adjustment ring
Seeger rings
G_D083_EN_00039
© Siemens AG 2016