SIMOTICS L-1FN3 linear motors for SINAMICS S120

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SIMOTICS L-1FN3 linear motor, primary section

In combination with the SINAMICS S120 drive 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 track with magnets made of rare-earth material. The primary section has fixed dimensions, while the secondary section track is made up of individual elements (secondary sections) to suit the required traversing range. Through parallel operation of the motors, feedrate force and length can be scaled beyond the available spectrum.

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

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 Thermo- Sandwich dual-circuit cooling system allows the motor to be decoupled from the machine, and is also an inexpensive cooling design.

The stainless steel 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 F_max can only be utilized up to a maximum velocity v_max(Fmax); up to velocity v_max(Frated), only the feedrate force F_rated is available.

Чертеж

ENG_124211.PDF

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, backlash, 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 linear motor
Magnet material	Rare-earth permanent magnets
Overload ratio (F_MAX:F_rated) up to max.
Version for peak load	2.75
Version for continuous load	1.7
Cooling	Water cooling
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) if rated motor power is reduced
Temperature monitoring integrated in the primary section winding	2 monitoring circuits: Temp-S with PTC thermistor and Temp-F with KTY84 temperature sensor¹⁾
Insulation 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	Continuous, covering the complete secondary section track or exchangeable 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 cables, pre-assembled with connectors or with exposed core ends
1FN3100 ... 1FN3900	Connection cover prepared for separate power and signal cables
1FN3100 ... 1FN3900 Version for continuous load	Connection cover prepared for a heavy-gauge threaded joint
Certificate of suitability	cURus UR for 1FN3900-4WC00-….

¹⁾ Evaluation via Sensor Module External SME120/SME125 or TM120 Termial Module, see SINAMICS S120 drive system.

³⁾ See 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