SIEMENS SIMOTICS L-1FN3 Linear Motor Operating Instructions

3. Safe operation

Cooling system: No operation without cooling is allowed (overheating can cause the cooling water to vaporize and burst the pipes). The cooling circuit can only be connected after the motor has cooled down;

High temperature protection: The surface temperature of the motor during operation may exceed 100 ° C, and a "Hot Surface Warning" label should be affixed. During maintenance, it should be cooled down or protective gloves should be worn;

Unexpected operation: During debugging, it is necessary to limit the current and speed, ensure smooth travel, and keep personnel away from the operating/squeezing area.

Full process operation guide

1. Preparation for use (transportation and storage)

Transportation requirements:

Shipping/Highway: No additional magnetic field protection required;

Air freight: In accordance with IATA regulations, two secondary components must be stacked in opposite directions (offset<1cm), otherwise they must be transported as dangerous goods (magnetic field>0.418A/m at a distance of 2.1m);

Lifting: Primary components require lifting eye bolts (in accordance with DIN 580), with a horizontal lifting angle of ≥ 50 ° and a center of gravity perpendicular to the hook.

Storage requirements:

Environment: 1K3 level (temperature -5... 40 ° C, humidity 5% -85%, no condensation/vibration);

Duration: Up to 2 years, exposed parts without anti-corrosion agents need to be coated with Tectyl, and the cooling system needs to be emptied and blown with dry compressed air.

2. Mechanical installation

Fixed specifications:

Screw: Grade 10.9 brand new screw, tightening torque must meet the standards (M5=7.6Nm, M6=13.2Nm, M8=31.8Nm);

Surface: The fixed surface needs to be free of oil/grease/paint, with a surface roughness Rz of 10-40 μ m;

Screw in depth: It must comply with the minimum (e.g. 1.8 × d for St 37 material) and maximum limit (calculated by the machine tool manufacturer).

Installation steps:

Check the installation dimensions (installation dimension error of ± 0.3mm for different configurations of heavy-duty/long-term motors);

Clean the installation surface and install secondary components (tighten the screws in the prescribed order, with all "N" markings facing the same direction);

Install primary components (note to align with the "N" mark on the secondary components, and ensure that the fixing screws are screwed in to the correct depth);

Inspection: The slider needs to move flexibly (force fluctuations caused by tooth groove force are normal), and the air gap (0.5mm film with cover plate and 1.0mm film without cover plate, which should be able to move easily).

3. Connection (cooling and electrical)

Cooling circuit connection:

Material: Brass/stainless steel is recommended for the coolant interface, and the hose should be resistant to coolant (Festo/Rectus brand is recommended);

Circuit: It is recommended to have an independent circuit, and ensure that the inlet temperature of each primary component is consistent when connected in parallel. Flexible hoses should be used for connection (to prevent rigid connection seal failure);

Coolant: Water containing anti-corrosion agent (chloride/sulfate<100mg/l, pH=6.5-9.5), recommended 25% -30% ethylene glycol mixture (freezing point ≤ -5 ° C).

Electrical connection:

Cable specifications: 4-core power cable (core wire cross-section ≥ 2.5mm ², 2.5mm ² corresponds to maximum rated current of 21A), 4-core signal cable (cross-section 0.5mm ²);

Pin layout: The power interface is U/V/W/PE, and the temperature sensor interface needs to distinguish between PTC (Temp-S) and KTY84/Pt1000 (Temp-F). The core wire color needs to match (such as - KTY/Pt1000 for white and+KTY/Pt1000 for black);

Shielding treatment: Signal/power cables need to be wired separately, and the shielding layer should be grounded extensively (using clamps/clamps).

4. Debugging

Prerequisite: Complete mechanical installation, electrical/cooling connections, and have drive system documentation;

Key steps:

Checklist confirmation (general: complete components/complete documentation; mechanical: smooth travel/compliant air gap; electrical: correct grounding/shielding);

Insulation resistance test: Test with 1000V DC for 60 seconds, insulation resistance ≥ 10M Ω (between winding and PE, temperature sensor and PE);

Cooling system inspection: Ensure that the coolant meets the requirements, the circuit is leak free, and the pressure is ≤ 10 bar;

Trial operation: Limit current and speed, check commutation (phase sequence U-V-W is positive direction), monitor temperature sensor signal.

5. Operation and maintenance

Operation monitoring: It is necessary to monitor abnormalities (such as noise, heat, current rise, vibration), and immediately stop the machine for troubleshooting (see the table below for fault codes and handling);

Fault Handling Table:

Possible causes (code) of the fault phenomenon and remedial measures

Motor lock A (overload), B (phase loss) to reduce load, check frequency converter and feeder line

Abnormal noise during operation D (reversing fault), K (foreign object) detection of reversing angle, cleaning of air gap foreign objects