SIMOTICS L-1FN3 linear motors for SINAMICS S120 Siemens

Область применения



Version for peak load

Used in machine axes that are temporarily accelerated, e.g. S3 duty or when large forces are required for a short time.

Typical applications:

  • High-dynamic, flexible machine tool and production machine construction
  • Laser machining
  • Handling

Version for continuous load

Used in machine axes with constant acceleration changes, e.g. S1 duty, with high process/weight forces or for operation without water cooling.

Typical applications:

  • Grinding
  • Non-circular machining, e.g. oscillating applications
  • Z-axes without weight compensation, quills
  • Handling, Cartesian robots

Обзор



SIMOTICS L-1FN3 linear motor, primary section

In combination with the SINAMICS S120 drive system or the SIMODRIVE 611 converter system, SIMOTICS L-1FN3 linear motors provide an optimally tuned linear direct drive system for the requirements of modern mechanical engineering.

The motors comprise a primary section and a secondary section with magnets made of rare-earth material. The primary section has fixed dimensions, while the secondary section is made up of individual elements (segments) to suit the required traversing range. Through parallel operation of the motors, feedrate force and length can be scaled beyond the available spectrum.

Дизайн



The simple mechanical construction without transmission elements, such as ballscrew, coupling or belt, enhances the reliability of the drive components.

Heat loss occurs almost exclusively in the primary section and is dissipated via an integrated liquid cooling system. The optional Thermo-Sandwich dual-circuit cooling system permits both a thermal decoupling of the motor from the machine, and also a low-priced cooling design.

The stainless metal encapsulation of the primary section ensures the high mechanical ruggedness and resistance to soiling required for use in machine tools and production machines, as well as high resistance to corrosive liquids. In addition, the motor places minimal demands on the preparation of mounting surfaces thanks to the large air gap. The mounting tolerances for the air gap are ± 0.3 mm (0.012 in).

Design variants

SIMOTICS L-1FN3 linear motors are available as single-sided or double-sided motors.

  • Single-sided motors
    The single-sided version consists of a primary section that is mounted parallel to the associated secondary section.
  • Double-sided motors
    The special secondary section of the double-sided version lies between two primary sections (one primary section with standard winding and one with complementary winding). The design as a double-sided motor is particularly suitable for applications with movable secondary section and small traversing paths with fast acceleration (e.g. non-circular machining).

Характеристика



Velocity/force characteristic curve

The SIMOTICS L-1FN3 linear motors have an overload range available for acceleration processes. The maximum force Fmax can only be utilized up to a maximum velocity vmax(Fmax); up to velocity vmax(Frated), only the feedrate force Frated is available.

Особенности


  • Outstanding dynamic response and very high traversing velocity
  • Excellent precision
  • Easy installation
  • Drive components are free of wear thanks to contactless drive force transmission

The main advantage of linear direct drive technology is the extensive avoidance of the effects of elasticity, play, and friction, as well as natural oscillation in the drive train. This results in a higher dynamic response and increased precision. If suitable measuring systems are used and the temperature conditions are appropriate, the motors can be positioned in the nanometer range.

Технические данные



Product name

SIMOTICS L-1FN3 linear motor

Type of motor

Permanent-magnet synchronous linear motor

Magnet material

 
  • Primary section

Rare-earth permanent magnets

  • Secondary section

Rare-earth permanent magnets

Overload ratio (FMAX:Frated) up to max.

 
  • Version for peak load

2.75

  • Version for continuous load

1.7

Cooling

Water cooling1)

Water cooler connections

G 1/8“ internal thread on all primary and secondary section coolers

Temperature influence on surrounding construction with precision cooling, max.

+ 4 K

Coolant inlet temperature, permissible

35 °C (95 °F) (avoid condensation)
>35 °C (95 °F) on reduction of rated motor power

Temperature monitoring integrated in the primary section winding

2 monitoring circuits: Temp-S with PTC thermistor and Temp-F with KTY84 temperature sensor2)

Insulation of stator winding in accordance with EN (IEC 60034-1)

Temperature class 155 (F) for a winding temperature of 120 °C (248 °F)

Degree of protection in accordance with EN 60034-5 (IEC 60034-5)

IP65

Available configurations

Different graduations due to modular construction

Secondary section cover

Exchangeable through all segments or segment by segment

2nd rating plate

Enclosed separately

Encoder system3)
(Not included in scope of delivery)

Select according to basic conditions specific to the application and the drive

Connection

 
  • 1FN3050

Permanently connected signal and power cable assembled with plugs or with open core ends

  • 1FN3100 ... 1FN3900

Connection cover prepared for separate power and signal cables

Approvals, according to

cURus
UR for 1FN3900-4WC00-….



1) Refer to Liquid cooling.

2) For SINAMICS S120: Evaluation via Sensor Module External SME120/SME125 or TM120 Termial Module, see SINAMICS S120 drive system.
2) For SIMODRIVE 611: Evaluation via encoder connection boxes SME9.., see Converter system SIMODRIVE 611.

3) Refer to Recommended linear measuring systems.

Дальнейшая информация



Some motor types can be delivered under plant standstill conditions as spare motors with the fast delivery service and offer the benefits of faster spare parts supply.

Please address any questions regarding SIMOTICS L-1FN3 linear motors to the email address below:

info.drives@siemens.com