SIEMENS SIMOTICS L-1FN3 series linear motor



SIEMENS SIMOTICS L-1FN3 series linear motor

The Chinese operating instructions for the Siemens SIMOTICS L-1FN3 series linear motor (December 2016 version, document number 6SN1197-0AF01-0RP1), with the core being a permanent magnet synchronous linear motor, are suitable for high dynamic flexible machine tools, laser processing, handling and other scenarios, outputting linear motion driving force; The document system covers safety warnings (including four levels of risk classification such as DANGER/WARNING, with a focus on permanent magnetic field compression/electric shock hazards), product characteristics (protection level IP65, water cooling method, temperature monitoring including PTC/KTY84/Pt1000 sensors), and full lifecycle operations (from transportation and storage, mechanical/electrical installation, to commissioning, operation and maintenance, and disposal), clearly allowing only qualified personnel to operate, and complying with standards such as EN 60034, EMC 2014/30/EU, while providing technical support (official website/phone) and third-party manufacturer recommendations to ensure safe, efficient, and long-lasting operation of the motor.

Product Core Features

1. Structure and composition

Component Function Description Key Parameters/Requirements

Primary component core drive unit, including 3-phase AC winding protection level IP65, insulation level Class 155 (F level), with main cooler

Secondary component moving parts, cast from permanent magnets and steel base with anti-corrosion design, surface to avoid contact with sharp tools/corrosive materials

Precision cooler (optional) assists in cooling, reducing heat transfer to the machine according to Thermo Sandwich ®  Principle design, with insulation layer between primary components

Secondary cooler (optional) cools secondary components, including cooling profiles and end caps. The cooling profile is AlMgSi0.5 (anodized), and the end caps are divided into flow/diversion types

Secondary cover plate (optional) protects the secondary magnetic plate and can quickly replace special steel plates with a thickness of 0.4mm, divided into whole or segmented types

2. Key technical parameters

Cooling system:

Method: Water cooling, maximum pressure of the cooling circuit is 10 bar, interface is G1/8 cylindrical thread (compliant with DIN ISO 228-1);

Coolant: Water containing anti-corrosion agent (ethylene glycol 25% -30%, Cl ⁻/SO ₄² ⁻ concentration<100mg/l, pH 6.5-9.5), with a maximum particle size of 100 μ m.

Temperature monitoring:

Temp-S: 1 PTC sensor per phase winding (120 ℃± 5K response), 3 in series, power off within 2 seconds of overheating;

Temp-F: 1 KTY84 (-40~300 ℃, 20 ℃ resistance ≈ 580 Ω) or Pt1000 (0~300 ℃, 20 ℃ resistance ≈ 1080 Ω) for real-time monitoring.

Environmental adaptability:

Operating temperature: -5~40 ℃ (no condensation/freezing), storage temperature -5~40 ℃;

Vibration resistance: Complies with EN 60034-14 to avoid resonance;

Noise emission: Normal operation ≤ 70dB (A), abnormal operation requires contacting technical support.

Full lifecycle operating standards

1. Transportation and Storage

Transportation requirements:

Packaging: The secondary components are packaged in their original packaging (anti magnetic field), and when shipped by air, they need to be stacked in pairs in reverse (reducing the magnetic field, with a magnetic field ≤ 0.418A/m at 2.1m for regular goods);

Lifting: The primary components are equipped with lifting eye bolts (DIN 580), with a horizontal lifting angle of ≥ 50 °, and vertical lifting using adjacent threaded holes on the end face.

Storage requirements:

Environment: Indoor dry, dust-free, vibration free, temperature -5-40 ℃, humidity 5% -85%;

Protection: The shaft extension without anti-corrosion agent should be coated with Tectyl. For long-term storage (≤ 2 years), it needs to be sealed with moisture absorbing material and desiccant. The cooling system should be emptied and the interface locked.

2. Mechanical installation

General rules:

Screw: Only use grade 10.9 new screws, with no oil/paint on the fixing surface and a surface roughness of Rz 10-40 μ m;

Tightening torque: M5=7.6Nm, M6=13.2Nm, M8=31.8Nm, optional Loctite 243 anti loosening.

Component installation:

Secondary components: Tighten in the prescribed order (1FN3050-450 is in the order of "1-2-3"), with all "N" markings pointing in the same direction. Drill holes in the bed to avoid the cylindrical part of the screw from touching the thread;

Primary component: fixed on the slider, ensuring that the screw is screwed in depth (with precision cooler/without different limits), and checking the air gap with the secondary component using a 0.5mm (with cover plate)/1.0mm (without cover plate) film;

Hall sensor box: The distance between it and the primary component is 35mm, and if the distance exceeds the tolerance, it needs to be an integer multiple of the pole to pole width of 2TM. The cable can be placed in a drag chain.

3. Electrical connection

Safety requirements:

Power supply: Only connect to the frequency converter (such as SINAMICS S120), do not directly connect to the three-phase AC power grid;

Grounding: The PE wire is directly connected to the power module, and the cable shielding layer is extensively grounded without using core wire insulation (withstand rated voltage).

Specific connection:

Power cable: 4-core (PE=green yellow, U=black, V=black, W=black), core wire cross-section ≥ 2.5mm ² (2.5mm ² corresponds to max current of 21A, 16mm ² corresponds to max 66A);

Temperature sensor: KTY84 should pay attention to polarity (white=-, brown=+), Pt1000 should be wired according to the pins, and safety isolation should be achieved through TM120/SME12x;

Connector: 1FN3050 with fixed cable, 1FN3100-900 connected to cover plate with bolts, tightening torque M4=2.2Nm, M5=3.4Nm.

4. Debugging

Preconditions for debugging: Mechanical/electrical installation completed, cooling system functioning properly, and drive system functioning properly.

Key steps:

Checklist confirmation: including three types of inspections: general (component integrity/environment), mechanical (air gap/slider flexibility), and electrical (grounding/shielding);

Insulation resistance test: tested with ≤ 1000V DC, with a winding to PE impedance of ≥ 10M Ω for 60 seconds;

Cooling system inspection: Confirm that the coolant meets the requirements, the circuit pressure is ≤ 10 bar, and there are no leaks;

Trial operation: Limit current/speed, monitor commutation (correct UVW phase sequence), check temperature sensor response.

5. Operation and maintenance

Operation monitoring:

Normal parameters: current ≤ rated value, temperature ≤ 120 ℃, no abnormal noise/vibration;

Troubleshooting: Motor lockout (check overload/phase), abnormal heating (check cooling/winding), abnormal noise (check air gap/commutation), see the fault table for details.

Maintenance cycle: There is no fixed cycle, follow the following warning signs:

Foreign objects around the motor, machine abnormalities (visual/auditory), decreased positioning accuracy, and increased current consumption;

Coolant: Check/replace according to the requirements of the anti-corrosion agent manufacturer, and regularly flush the cooling circuit.

6. Scrapping and disposal

Scrap steps:

Power off → wait for DC bus discharge → cool down for 30 minutes;

Disconnect the cooling circuit (reduce pressure to 0 bar) → drain the coolant (compliant treatment);

Dismantle the cable (insulated power interface) → clean up foreign objects in the motor;

Disassemble in reverse order of installation (first disassemble the primary components, then disassemble the secondary components in sections).

Waste disposal:

Secondary components: need to be demagnetized (300 ℃ ≥ 30min), and then classified and recycled (permanent magnets/metals/electronic components);

Packaging: PE/PP/PS is recyclable, wood is combustible, and municipal waste disposal is prohibited.

Appendix and Compliance

1. Key Appendix Resources

Installation of Hall sensor box: Provide installation dimension drawings for different models (1FN3050-900), specifying the spacing (such as 212.5+30 × Np mm) and fixing method;

Third party recommendation:

Category Manufacturer Product/Model Official Website

Corrosion inhibitor TYFOROP chemical Tyfocor www.tyfo.de

Corrosion inhibitor Clariant Antifrogen N from Germany www.clariant.de

Cooling connector Rectus plug-in joint 21 SF AW10 MPX www.rectus.de

Plastic hoses Festo - www.festo.com

Abbreviations: EMC (Electromagnetic Compatibility), PE (Protective Grounding), PTC (Positive Temperature Coefficient Sensor), Temp-S (Overtemperature Protection Circuit).

2. Compliance standards

Following standards: EN 60034 (Rotating Electrical Machinery), EN 60204-1 (Mechanical and Electrical Equipment), IEC 61800-5-1 (Safety Isolation);

Compliant with directives: EMC 2014/30/EU (Electromagnetic Compatibility), Low Voltage Directive 2014/35/EC, Customs Union EAC certification