Description

• Mount the inverter in a well-ventilated, dry area with ambient temperatures between -10℃ and 40℃. Avoid direct sunlight, dust, oil, or corrosive gases, and ensure a minimum 15cm clearance around the unit for optimal heat dissipation.

• Use high-quality copper cables with a cross-sectional area of ≥4mm² for power wiring (input/output) to handle the 18kW load. Tighten terminal screws to the recommended torque (3–4 N·m) to prevent loose connections and electrical arcing.

• Strictly follow the wiring diagram provided by Fuji and Nanjing Zhuye Elevatorparts: connect the main circuit terminals (R, S, T for three-phase input; U, V, W for motor output) correctly. Incorrect wiring can cause motor reversal, inverter damage, or system failure.

• Implement a reliable grounding system with a ground resistance ≤4Ω to ensure electrical safety and reduce electromagnetic interference (EMI) with other elevator components.

• Power on the inverter and access the parameter setting menu. Input core parameters based on the elevator motor’s nameplate and system requirements, including rated voltage, rated current, rated speed, acceleration time (typically 1.5–3 seconds), and deceleration time (1.5–3 seconds).

• Conduct a no-load test first: operate the motor without the elevator car load to verify smooth speed regulation, absence of abnormal noise, and correct response to control signals.

• Proceed to load testing: simulate rated load conditions, test start-stop performance, speed accuracy (tolerance ≤±0.5%), and emergency stop functionality. Adjust PID control parameters or torque compensation settings if needed to optimize stability.

• Save all configured parameters to non-volatile memory and document them in a maintenance log—Nanjing Zhuye Elevatorparts recommends regular parameter audits to prevent unintended changes.

• Weekly Inspections: Visually check the inverter for cracked casings, loose terminals, or dust accumulation. Verify that the cooling fan operates smoothly and indicator lights display normal status (green for power-on, no error codes).

• Monthly Cleaning: Use compressed air (pressure ≤0.4MPa) or a dry soft brush to remove dust from the heat sink, ventilation grilles, and terminal blocks. Never use water, alcohol, or corrosive cleaners, as they can damage internal electronics.

• Temperature & Voltage Monitoring: Track operating temperature (ideal range: 20–35℃) and input/output voltage. If temperature exceeds 45℃, inspect ventilation or replace the cooling fan immediately. Voltage fluctuations beyond ±10% of the rated value require power supply troubleshooting.

• Fault Handling: In case of error codes (e.g., E.OC for overcurrent, E.OH for overheating), refer to the user manual or contact Nanjing Zhuye Elevatorparts’ technical support team. Do not disassemble the inverter or modify parameters without professional authorization.

• Harsh Environments: For elevators in coastal areas (high humidity), unventilated machine rooms (high temperature >40℃), or regions with unstable power grids, shorten the replacement cycle to 5–7 years. These conditions accelerate component degradation, particularly capacitors and semiconductors.

• Low-Frequency Use: For elevators with low usage (e.g., villa elevators, small office buildings with daily operations), extend the cycle to 9–11 years after a professional inspection confirms that key components (capacitors, cooling fans, power modules) are functional.

• Recurring fault alarms (≥3 times per week) that cannot be resolved by maintenance or parameter adjustment.

• Visible internal damage, such as burnt circuit boards, leaking capacitors, or melted terminals.

• Significant performance decline: unstable speed regulation, increased energy consumption (>15% higher than baseline), or prolonged start-stop times.

• Incompatibility with elevator system upgrades (e.g., new control panels, safety features) or failure to meet updated industry safety standards (e.g., EN 81-20, GB 7588).