Design Of The Motors; General Technical Data - Kollmorgen Seidel 6SM56 Series Technical Description

General
I.3

Design of the motors

Synchronous servomotors in the 6SM45..100 series are brushless DC motors for
demanding servo applications. When combined with our digital servo-amplifiers they are
especially suited for positioning tasks in industrial robots, machine tools, transfer lines
etc. With high requirements for dynamics and stability.
The servomotors have permanent magnets in the rotor. The rare earth neodymium
-iron-boron magnetic material is an important factor in making it possible to drive these
motors in a highly dynamic fashion. A three-phase winding which is driven by the
servo-amplifier is integrated into the stator. The motor does not have any brushes since
commutation is performed electronically by the servo-amplifier.
For these motors, forced ventilation is usually not necessary, because of the optimised
heat transfer through the strongly ribbed motor housing. However, in order to increase
M , the motors in the series 6SM56..100 can be delivered with a separately driven fan
0
(motor plus option -BV-). The fan can also be retrofitted.
The temperature of the winding is monitored by temperature sensors in the stator wind -
ings and is signalled via an electrically isolated contact (normally closed).
A resolver is built into the motors as feedback element. The servo-amplifiers in the
digifas® or SERVOSTAR™ series evaluate the resolver (hence rotor) position and supply
sinusoidal currents to the motors.
The motors can be delivered with or without a built-in holding brake.
The motors are enamelled in matt black (RAL 9005). This finish is not resistant against
solvents (e.g. trichlorethylene, nitro-thinners, or similar).
I.4

General technical data

Climate category
Ambient temperature
(at rated values)
Permissible humidity (at rated values) 85% rel. humidity, no condensation
Power derating
(currents and torques)
Max. permissible flange temperature 65°C ± 10% at rated values
Ball-bearing life
Technical data
Storage data
10
05.2000
3K3 to EN 50178
5...+40°C for site altitude up to 1000m amsl
It is vital to consult our applications department
for ambient temperatures above 40°C and
encapsulated mounting of the motors.
1% / K in range 40°C...50°C up to 1000m amsl
for site altitude above 1000m amsl and 40°C
6% up to 2000m amsl
17% up to 3000m amsl
30% up to 4000m amsl
55% up to 5000m amsl
No derating for site altitudes above 1000m amsl
with temperature reduction of 10K / 1000m
³ 20.000 operating hours
ÞI.9
ÞIV.1
Kollmorgen
Motor series 6SM45..100