Description

1. Safety Preparation: Before installation, shut off the elevator’s main power supply and disconnect the door machine control cabinet power. Implement LOTO (Lockout/Tagout) procedures to prevent accidental door activation. Wear insulating gloves, safety glasses, and protective footwear to avoid electrical hazards and mechanical injury.

2. Remove the Old Motor: Locate the existing YVP90-6S motor in the door machine assembly (typically mounted on the door frame or drive bracket). Take detailed photos of the wiring connections, coupling alignment, and mounting position – note terminal labels, cable colors, and the motor’s orientation relative to the door drive gear. Disconnect the power cables and signal wires gently, then loosen the fixing bolts and remove the motor from the coupling or drive belt.

3. Prepare the Mounting Area: Clean the mounting bracket, coupling, and surrounding area with a soft brush or lint-free cloth to remove dust, oil, or debris. Inspect the coupling for wear or damage (e.g., cracks, excessive play) and replace if necessary. Verify the mounting surface is flat and aligned to prevent motor misalignment.

4. Install the New Motor: Align the Nanjing Zhuye Elevator Parts YVP90-6S motor with the mounting bracket and coupling. Ensure the motor shaft is properly seated in the coupling (axial clearance: ≤0.5mm) to avoid vibration. Secure the motor with the original bolts (torque: 4-6 N·m) to ensure stability during operation. Reconnect the power cables and signal wires according to the photos, matching each wire to the correct terminal – use crimp connectors or terminal blocks to ensure tight, insulated connections.

5. Test and Calibrate: Restore power to the control cabinet and elevator. Access the door system’s diagnostic mode (follow Fermator’s technical manual) to verify the motor is recognized by the controller. Calibrate door opening/closing speed, acceleration/deceleration rates, and travel limits. Conduct a comprehensive test: operate the doors through 50+ cycles, checking for smooth movement, accurate positioning, and no abnormal noise or vibration. Confirm the motor responds correctly to safety triggers (e.g., door reversal when obstructed).

• Voltage Compatibility: Confirm the elevator’s power supply matches the motor’s requirements (380V AC ±10% three-phase) before installation – using the wrong voltage can burn out the windings.

• Frequency Control: Ensure the motor is connected to a compatible variable-frequency drive (VFD) per Fermator’s specifications. Avoid operating the motor at frequencies outside the recommended range (5-50Hz) to prevent overheating.

• Lubrication Maintenance: Lubricate the motor bearings every 12 months with high-temperature grease (NLGI Grade 2) to reduce friction and extend bearing life. Avoid over-lubrication, which can attract dust and cause overheating.

• Avoid Overloading: Do not force the doors open/closed manually, as this can strain the motor and damage the drive gear or coupling.

• High-Traffic Areas: Shopping malls, airports, or office buildings (12+ hours daily operation, 500+ door cycles per day) – replace every 4-5 years. Continuous operation and mechanical stress accelerate bearing wear and winding aging.

• Medium-Traffic Areas: Residential buildings, hotels, or small offices (8-10 hours daily, 200-500 door cycles per day) – replace every 5-7 years.

• Low-Traffic Areas: Villas, industrial facilities, or low-occupancy buildings (4-6 hours daily, per day) – replace every 7-9 years, with semi-annual inspections.

• Persistent Door Fault Codes: Recurring errors like “motor overload,” “speed mismatch,” or “door drive failure” that persist after checking wiring and VFD settings.

• Abnormal Operation: Doors open/close sluggishly, jerk, hesitate, or fail to fully extend/retract – indicators of reduced motor torque or bearing damage.

• Motor Overheating: The motor housing feels excessively hot to the touch (temperature >80°C) after normal operation, or the thermal protector trips frequently.

• Physical Damage: Cracked housing, loose wiring, damaged shaft, or signs of oil leakage from bearings – which can lead to complete motor failure.

• Unusual Noise: Grinding, squealing, or humming sounds during operation, indicating worn bearings or misaligned coupling.

• Perfect Compatibility: Engineered to match Fermator’s original specifications, ensuring seamless integration with Fermator door systems without software or mechanical modifications.

• Superior Performance: Industrial-grade components and precision manufacturing deliver consistent torque, smooth speed control, and low noise operation.

• Rigorous Quality Assurance: 100% pre-delivery testing, including load validation and endurance trials, to meet global safety and performance standards.

• Expert Technical Support: Our team of engineers provides professional guidance on installation, calibration, and troubleshooting via phone or email, ensuring a smooth user experience.

• Fast Delivery: We maintain a large inventory of YVP90-6S motors to fulfill emergency replacement orders within 24-48 hours, minimizing elevator downtime.