SIEMENS
7/27
Siemens CR 1 · 2015
7
SIMOTICS motors for cranes
SIMOTICS SD – Severe Duty motors
1LP4, 1LP6 with mounted spring-set brake
■
Technical specifications
Electrical design
Operating voltage
The crane brake motors are available for the following rated
voltages:
•
400 V 3 AC, 50 Hz
•
460 V 3 AC, 50 Hz
•
500 V 3 AC, 50 Hz
•
690 V 3 AC, 50 Hz
The specifications change as follows for motors operating at a
rated frequency of 60 Hz:
•
Rated speed +20 %
•
Rated power +15 %
The standard model of brake coil is supplied for connection to
207 V DC (see technical specifications for brakes).
Motor protection
The following protective equipment can be installed (see "Article
number supplements and special versions"):
•
3 PTC thermistors for tripping
•
3 PTC thermistors for tripping and 3 PTC thermistors for alarm
•
1 KTY 84-130 temperature sensor for evaluation in the conver-
ter
•
3 bimetallic switches (Klixon) for tripping
Standstill heating
The motors can be fitted with a standstill heater. The heat outputs
are as follows:
For voltages, see "Article number supplements and special
versions".
It is also possible to connect a voltage (which should equal
approximately 4 to 10 % of the rated motor voltage) to stator
terminals U1 and V1. 20 to 30 % of the rated motor current is
normally sufficient to provide adequate heating.
Insulation
The motor windings are designed to comply with insulation
class F.
Electric strength
See Catalog D 81.1.
Mechanical design
1LP4/1LP6 motors are naturally cooled units without fans.
Depending on the shaft height, brakes with different torques can
be built onto the motors. Housing and terminal box are made of
gray cast iron. The brake itself does not have a separate terminal
box; all the brake connections, whether coil, microswitch or hea-
ter, are taken to the motor terminal box.
Types of construction
The motors are available in types of construction IM B3, IM B35,
IM V5, IM B5 and IM V1. Other types of construction are avail-
able on request.
The position of the condensate drain holes is determined by the
type of construction.
Housing
The housing and terminal box of the motor are made of gray cast
iron. The DE flange and the feet (bolted-on) can be supplied in
GGG 40 as an option.
Degree of protection
The degree of protection of the standard motor models is IP55.
IP56 is also available as an option. The water drain holes on mo-
tors with this degree of protection must be opened at regular in-
tervals as part of the maintenance cycle to allow any condensate
that has collected inside the motor to drain off.
Paint finish
The motors are coated as standard in a special finish RAL 7030
with a coat thickness of 180
μ
m. Other colors are available at ad-
ditional cost. A further option is an offshore finish with a coat
thickness of 220
μ
m.
Mounted equipment
Sensing equipment such as the POG 10 incremental encoder
(made by Baumer Hübner) can be mounted on the motors. The
brakes themselves can be supplied with an emergency manual
release mechanism (see KFB spring-set brake for SIMOTICS
SD
1LP4/1LP6, special versions "Emergency release with hand le-
ver").
Motor shaft height
Heat output
W
132 ... 160
100
180 ... 200
55
225 ... 250
92
280
109
© Siemens AG 2015