SIGMA Elevator Door Encoder ACVF 5V/24V: Dual-Voltage Precision for Reliable Door Control

Proper Usage Methods of SIGMA Elevator Door Encoder ACVF 5V/24V

1. Installation & Wiring with Voltage Matching

• First, thoroughly clean the installation position on the SIGMA elevator door motor shaft to remove dust, oil stains, and debris. Check the motor shaft for wear or deformation; repair or replace it if necessary to ensure a smooth and tight fit with the encoder.
• Install the encoder on the motor shaft using the matching coupling or flange. Ensure coaxial installation (coaxiality error ≤0.1mm) to avoid vibration and wear caused by eccentricity. Fasten the encoder firmly with matching screws, following SIGMA’s technical requirements for tightening torque (typically 3–5 N·m) to prevent loosening during high-speed operation.
• Confirm voltage and connect wiring: According to the wiring diagram provided by Nanjing Zhuye Elevatorparts and SIGMA, select the corresponding voltage (5V or 24V) based on the door controller’s power supply. Connect the encoder’s signal wires (A, B, Z phases) and power wires to the matching terminals of the SIGMA door controller. Use shielded wires for signal transmission to reduce electromagnetic interference. Ensure wiring is tight and the insulation layer is intact; pay special attention to the phase sequence of signal wires to ensure accurate direction detection and position counting.
• Post-installation commissioning: Power on the elevator door system, test the door opening and closing functions, and verify the encoder’s signal output through the SIGMA door controller. Confirm the elevator door operates smoothly without jitter, the speed adjusts stably, and the positioning is accurate. If there is abnormal positioning or speed fluctuation, recheck the voltage matching, coaxiality, and wiring, and adjust in time.

2. Daily Operation & Routine Inspection

• During elevator operation, monitor the door opening and closing status. Abnormal phenomena such as slow response, incorrect floor positioning, frequent door reversal, or jitter indicate possible encoder signal abnormalities or voltage mismatches.
• Conduct weekly visual inspections: Check the encoder’s appearance for damage, including cracks or deformation of the metal casing, looseness of coupling/screws, and wear or aging of wires. Retighten loose fasteners promptly and replace damaged wires. Clean the encoder surface with a dry, lint-free cloth to remove dust and debris.
• Regularly verify voltage stability and signal output via the SIGMA door controller’s diagnostic function. If frequent signal loss, error counting, or voltage fluctuation occurs, trace the cause—such as loose wiring, poor contact, or voltage mismatch—and resolve it immediately.

3. Regular Maintenance

• Every 3 months, inspect the encoder’s installation coaxiality and coupling wear. Adjust or replace the coupling if eccentricity or excessive wear is found to avoid affecting detection accuracy.
• Every 6 months, recheck wiring connections and terminal tightness. Use a multimeter to verify the power supply voltage (5V or 24V) and signal output waveform, ensuring they meet SIGMA’s technical standards. For encoders in high-humidity or high-dust environments, increase cleaning and inspection frequency.
• Annually, conduct a comprehensive performance test using professional instruments to check resolution, signal-to-noise ratio, and response time. If performance indicators do not meet requirements, contact Nanjing Zhuye Elevatorparts for professional maintenance or replacement with original SIGMA encoders to ensure consistent door control precision.

Recommended Replacement Cycle of SIGMA Elevator Door Encoder ACVF 5V/24V

1. Standard Replacement Cycle

2. Scenario-Based Cycle Adjustment

• Harsh Operating Environments: For elevators in high-humidity coastal areas, high-dust construction sites, high-temperature unventilated machine rooms, or areas with strong vibration, the replacement cycle should be shortened to4–5 years. Harsh conditions accelerate optical component aging, casing corrosion, and coupling wear, reducing precision and reliability.
• Low-Frequency Use Scenarios: For elevators with low usage (e.g., villa elevators, small offices with <5,000 monthly door cycles) and stable environments, the replacement cycle can be extended to 7–8 years after a professional inspection by Nanjing Zhuye Elevatorparts confirms normal signal output, voltage compatibility, and structural integrity.

3. Immediate Replacement Conditions

• No signal output or frequent signal loss, causing door positioning failure or inability to open/close normally, which cannot be resolved by checking wiring or voltage.
• Severe casing cracks, deformation, or corrosion, exposing internal components to damage.
• Significant reduction in positioning precision (error >5mm) that cannot be corrected by calibration.
• Failure to pass the annual performance test, with indicators unable to be restored to standard even after maintenance.