Elevator Brake Detection Switch TM-1307 & Z-15GQ-B: Safety Detection Core from Nanjing Zhuye Elevatorparts

Step-by-Step Usage Guide for Elevator Brake Detection Switch TM-1307 & Z-15GQ-B

1. Professional Installation & Wiring

• Safety Preparation: Cut off the elevator’s main power supply and lock the power switch. Fix the elevator car to a safe position using a mechanical support to prevent accidental movement. Clean the switch mounting position (near the elevator brake mechanism) to remove dust, oil stains, and debris that may affect switch contact.
• Switch Installation: Fix the TM-1307/Z-15GQ-B switch to the dedicated mounting bracket using high-strength bolts provided by Nanjing Zhuye Elevatorparts. Adjust the switch’s position to ensure the brake’s mechanical lever can accurately trigger the switch’s contact when moving—ensure the switch is in the “closed” state when the brake is engaged and “open” state when released (or vice versa, according to the main control system’s requirements). Ensure there is no excessive pressure on the switch’s contact to avoid damage.
• Wiring Operation: According to the elevator control system wiring diagram, connect the switch’s signal terminals to the elevator main control system’s corresponding interface. Use shielded wires (recommended by Nanjing Zhuye Elevatorparts) to reduce electromagnetic interference. Ensure tight wiring, reliable insulation, and correct polarity. Use heat-shrinkable tubes for wiring joints to avoid short circuits. Clearly mark each wire as guided by Nanjing Zhuye’s manual for future maintenance.
• Post-Installation Debugging: Restore the power supply and switch the elevator to inspection mode. Test the brake’s on/off status: engage and release the brake manually to check if the switch sends accurate signals to the main control system (confirmed via the control panel’s indicator lights). Verify the safety interlock function: ensure the elevator cannot start when the brake is engaged (switch in the corresponding state) and can start normally when the brake is released. If the signal is abnormal or the interlock function fails, recheck the installation position and wiring immediately.

2. Daily Operation & Routine Inspection

• Daily Visual Inspection: During elevator shaft patrols, check the external condition of the TM-1307/Z-15GQ-B switch. Ensure the housing is free of cracks, deformation, or discoloration (a sign of overheating); the mounting bolts are tight without looseness; the wiring terminals are free of oxidation, burning marks, or loose connections; the switch’s trigger lever moves flexibly without jamming.
• Weekly Signal Test: Use a multimeter to detect the switch’s contact resistance (should be ≤ 0.1Ω when closed) and signal continuity. Operate the brake 10–15 times continuously to check if the switch’s signal response is stable without delay or false signals. Check the elevator main control system’s fault records for any switch-related errors, and troubleshoot in a timely manner if any are found.
• Monthly Cleaning & Adjustment: Clean the switch’s surface, contact, and trigger lever with a dry brush or professional electrical cleaner to remove dust and oil stains. Recheck the switch’s installation position and adjust if there is any deviation (caused by vibration). Apply a small amount of anti-rust lubricant to the switch’s moving parts (recommended by Nanjing Zhuye Elevatorparts) to ensure flexible movement.

3. Regular Maintenance Schedule

• Quarterly Maintenance: Disconnect the power supply and remove the switch from the mounting bracket (if necessary). Thoroughly clean the switch’s internal contact (using a contact cleaner) to remove oxide and ensure good conductivity. Inspect the switch’s internal spring and moving parts for wear or deformation—replace with genuine parts if necessary. Reinstall the switch and recheck the signal transmission and interlock function.
• Semi-Annual Performance Test: Conduct a comprehensive performance test, including contact reliability, signal response time, and environmental adaptability (simulate high-temperature, high-humidity conditions). Test the switch’s overload capacity to ensure it can work normally under extreme electrical conditions. For elevators in high-traffic areas (e.g., shopping malls, airports), increase the test frequency to once every 3 months.
• Annual Professional Overhaul: Arrange a professional inspection with Nanjing Zhuye Elevatorparts’ certified technical team. Calibrate the switch’s trigger position and signal accuracy to meet the original factory standards. Replace aging switches with genuine TM-1307/Z-15GQ-B units if the contact resistance exceeds the allowable range or the signal response is delayed.

Recommended Replacement Cycle for Elevator Brake Detection Switch TM-1307 & Z-15GQ-B

1. Standard Replacement Cycle

2. Adjustments for Special Scenarios

• Harsh Environments: For elevators in high-temperature shafts (e.g., near boiler rooms), high-humidity coastal areas (salt spray corrosion), or high-dust construction sites, the replacement cycle should be shortened to 1–2 years. Harsh conditions accelerate contact oxidation, housing damage, and internal component aging, significantly reducing the switch’s reliability.
• Low-Frequency Use Scenarios: For elevators with low usage frequency (e.g., villa elevators, small office buildings with daily operation time < 8 hours) and stable working environments, the replacement cycle can be extended to 3–4 years—only if Nanjing Zhuye’s professional inspection confirms the switch’s contact reliability, signal response speed, and mechanical performance are intact (consistent with original factory standards).

3. Immediate Replacement Conditions

• The switch’s contact resistance exceeds 1Ω (tested by a multimeter), leading to delayed or unstable signal transmission, affecting the main control system’s judgment of the brake status.
• The switch fails to trigger normally (e.g., no signal when the brake is engaged/released) or triggers falsely, causing the elevator to malfunction (e.g., unable to start, frequent emergency stops).
• The switch’s housing is severely damaged, or the internal components are corroded/rusted (accompanied by poor contact), and it cannot work normally even after maintenance.
• The switch fails the safety performance test, failing to meet the elevator’s safety operation requirements (e.g., signal response time exceeds 10ms).