SIMIDER Elevator Leveling Sensor Switch SHU30-M31DNP-F: Precision Positioning Core from Nanjing Zhuye Elevatorparts

Step-by-Step Usage Guide for SIMIDER Elevator Leveling Sensor Switch SHU30-M31DNP-F

1. Professional Installation & Calibration

• Safety Preparation: Cut off the elevator’s main power supply and fix the elevator car to a safe position (aligned with the middle floor) using a safety clamp. Locate the dedicated mounting position of the leveling sensor switch on the car (usually on the car frame, corresponding to the leveling induction plate in the shaft). Clean the installation area to remove dust, oil stains, and debris that may affect detection accuracy.
• Sensor Switch Installation: Fix the SHU30-M31DNP-F sensor switch to the dedicated mounting bracket using genuine high-strength bolts provided by Nanjing Zhuye Elevatorparts. Adjust the sensor switch’s height and angle to ensure the sensing surface is aligned with the leveling induction plate (the gap between the sensor switch and the induction plate should be 3–8mm, consistent with SIMIDER’s original factory requirements). Connect the sensor switch’s signal terminal and power terminal to SIMIDER elevator’s main control system according to the original wiring diagram, ensuring correct polarity and tight connections (loose wiring may cause signal loss or delay).
• Leveling Calibration: After wiring, restore the power supply and switch the elevator to inspection mode. Operate the car to slowly move up and down to each floor, and use SIMIDER’s dedicated calibration tool (or the main control system’s calibration function) to set the leveling zero point and switching signal trigger position. Verify that the sensor switch transmits accurate switching signals when the car reaches each floor, and the leveling error is within ≤ 2mm. If the error exceeds the standard, adjust the sensor switch’s position until it meets the requirement.
• Post-Installation Testing: Conduct comprehensive functional tests under inspection mode. Continuously operate the elevator to stop at each floor 5–10 times to ensure stable leveling performance (no overshooting or undershooting). Simulate shaft vibration by tapping the sensor switch lightly to verify anti-interference ability. Test the switch’s on/off responsiveness to ensure timely signal transmission. If there is inaccurate leveling, unstable signal, or unresponsive switching, recheck the installation and wiring immediately.

2. Daily Operation & Routine Inspection

• Daily Visual Inspection: During shaft patrols, check the external condition of the SHU30-M31DNP-F sensor switch. Ensure the stainless steel shell is free of cracks, deformation, or severe corrosion; the sensing surface is clean and free of scratches or stains; the wiring terminals are tight without looseness, oxidation, or burning marks; the leveling induction plate is free of deformation or displacement (which may affect detection accuracy).
• Weekly Functional Check: Operate the elevator in normal mode to observe the leveling effect at each floor. Use a multimeter to detect the sensor switch’s output signal (ensure it switches normally between on and off states) and the power supply voltage (meets SIMIDER’s specified requirements). Record the test data for future comparison.
• Monthly Parameter Monitoring: Turn off the power supply and clean the sensor switch’s shell, sensing surface, and wiring terminals with a dry, lint-free cloth to remove dust and debris. Check the tightness of the mounting bolts to prevent loosening due to shaft vibration. For elevators in harsh environments (high humidity, heavy dust), apply a small amount of anti-corrosion agent to the shell (recommended by Nanjing Zhuye Elevatorparts, compatible with SIMIDER components).

3. Regular Maintenance Schedule

• Quarterly Maintenance: Disconnect the power supply, remove the sensor switch from the mounting bracket, and thoroughly clean the shell, sensing surface, and internal signal components with a professional electrical cleaner. Inspect the sensor switch’s internal circuit for aging or damage (replace the sensor switch if any abnormality is found). Reinstall the sensor switch and reconfirm the leveling calibration parameters and signal transmission stability.
• Semi-Annual Performance Test: Conduct a comprehensive performance test, including positioning precision, signal response speed, and anti-interference ability. Use a professional signal tester to simulate different working conditions (e.g., voltage fluctuation, electromagnetic interference) to verify the sensor switch’s stable operation. For elevators in high-traffic areas (e.g., shopping malls, airports) or harsh environments (high humidity, heavy dust), increase the test frequency to once every 3 months.
• Annual Professional Overhaul: Arrange a professional inspection with Nanjing Zhuye Elevatorparts’ certified technical team (familiar with SIMIDER elevator systems). Replace aging sensor switches with genuine SHU30-M31DNP-F sensor switches. Inspect the mounting bracket and leveling induction plate for wear or deformation and replace them with genuine SIMIDER parts if necessary. Recalibrate the leveling parameters to meet SIMIDER’s original factory standards.

Recommended Replacement Cycle for SIMIDER Elevator Leveling Sensor Switch SHU30-M31DNP-F

1. Standard Replacement Cycle

2. Adjustments for Special Scenarios

• Harsh Environments: For SIMIDER elevators in high-humidity coastal areas (salt spray corrosion), high-dust construction sites, or shafts with strong vibration (near construction areas) or strong electromagnetic interference (industrial zones), the replacement cycle should be shortened to 2–3 years. Harsh conditions accelerate the corrosion of the shell, damage to the sensing surface, and aging of internal circuits, significantly reducing the sensor switch’s reliability.
• Low-Frequency Use Scenarios: For SIMIDER elevators with low usage frequency (e.g., villa elevators, small office buildings with daily operation time < 8 hours) and clean, stable shaft environments, the replacement cycle can be extended to 4–5 years—only if Nanjing Zhuye’s professional inspection confirms the sensor switch’s positioning precision, signal stability, and component integrity are intact (consistent with SIMIDER’s performance requirements).

3. Immediate Replacement Conditions

• The leveling error exceeds 4mm, and the error cannot be corrected through calibration and maintenance, posing a clear tripping risk to passengers.
• The sensor switch has frequent false triggers or signal loss, leading to abnormal elevator leveling (e.g., overshooting or undershooting the floor) or failure to trigger door opening/closing signals.
• The sensor switch’s shell is severely cracked, deformed, or corroded; the sensing surface is damaged, resulting in inability to detect the leveling induction plate normally.
• The sensor switch has no switching signal output (confirmed by multimeter testing), and the fault cannot be eliminated by checking the power supply and wiring, affecting the elevator’s normal operation.