Monarch Elevator LCD Display Board SFTC-HCB-L-BO & FSJG-CB-L4P6: Clear Information Display for Elevator Operation

Proper Usage Methods of Monarch Elevator LCD Display Board SFTC-HCB-L-BO & FSJG-CB-L4P6

1. Installation & Commissioning

• First, cut off the elevator power supply and ensure safety. Thoroughly clean the installation slot (in the cab ceiling/wall or landing LOP) to remove dust, oil stains, and debris, ensuring a stable and flat mounting base for the display board.
• Place the display board into the installation slot accurately, ensuring it fits closely with the slot without gaps. Fix the display board firmly using matching screws from the back or side of the slot. The tightening torque should comply with Monarch’s technical requirements (typically 2–4 N·m) to avoid damaging the circuit board or display screen.
• Correctly connect the wiring: According to the wiring diagram provided by Nanjing Zhuye Elevatorparts and Monarch, connect the display board’s power wires and signal wires to the corresponding terminals of the Monarch elevator main controller or LOP control board. Ensure the wiring is tight and reliable, and the wire insulation layer is intact to avoid short circuits or poor contact. Pay special attention to the positive and negative poles of the power supply and the correctness of signal line pin connections to prevent damage to the display board’s circuit module.
• Post-installation commissioning: Restore the elevator power supply, check if the display board lights up normally, and verify the clarity and completeness of the displayed content (floor number, running direction, etc.). Operate the elevator in inspection mode to confirm that the display board can accurately update the elevator’s real-time status. Simulate fault conditions to test if the display board can correctly trigger fault prompt information. If there is abnormal display (such as dim light, missing content, or flickering), recheck the wiring and installation status and adjust in time.

2. Daily Operation & Routine Inspection

• During daily elevator operation, observe the display status of SFTC-HCB-L-BO and FSJG-CB-L4P6 regularly. Abnormal phenomena such as no display, blurred content, flickering, missing characters, or delayed information update indicate possible display board failures or wiring problems.
• Conduct weekly visual inspections and cleaning: Use a dry, lint-free cloth to gently wipe the surface of the display screen to remove dust and fingerprints. Avoid using water, alcohol, or corrosive cleaners that may damage the screen’s protective layer. Check the display board’s shell and fixing screws for cracks, deformation, or looseness, and retighten loose screws in a timely manner.
• Regularly check the wiring connections at the back of the display board (after cutting off the power supply). Ensure the wires are not loose, aged, or damaged. If any wiring issues are found (such as loose terminals or broken wires), resolve them immediately to avoid display malfunctions.

3. Regular Maintenance

• Every 3 months, thoroughly inspect the display board’s installation status and wiring connections. Check if the display board is loose due to elevator vibration and adjust the fixing screws if necessary. Use a multimeter to detect the power supply voltage of the display board to ensure it is within the standard range (typically DC 12V/24V).
• Every 6 months, conduct a comprehensive performance test: Verify the display board’s brightness, contrast, and response speed. For display boards with adjustable brightness, calibrate the brightness to ensure clear visibility under both strong light (such as direct sunlight in landing lobbies) and low light conditions. Check the integrity of the display interface and confirm that all information can be displayed normally.
• Annually, conduct a professional maintenance: Contact Nanjing Zhuye Elevatorparts’ technical personnel to disassemble and inspect the internal components of the display board, including the LCD module, circuit board, and connector. Clean the internal dust (if any) and replace aging components (such as capacitors) if necessary to ensure the long-term stable operation of the display board.

Recommended Replacement Cycle of Monarch Elevator LCD Display Board SFTC-HCB-L-BO & FSJG-CB-L4P6

1. Standard Replacement Cycle

2. Scenario-Based Cycle Adjustment

• Harsh Operating Environments: For elevators operating in high-humidity coastal regions, high-dust construction sites, high-temperature unventilated elevator lobbies/machine rooms, or areas with strong electromagnetic interference, the replacement cycle should be shortened to 4–5 years. Harsh conditions accelerate the aging of LCD modules, corrosion of circuit boards, and damage to the display screen, reducing the display board’s reliability and service life.
• Low-Frequency Use Scenarios: For elevators with low usage frequency (e.g., villa elevators, small office buildings with less than 3,000 monthly rides) and stable operating environments, the replacement cycle can be appropriately extended to 7–8 years after a professional inspection by Nanjing Zhuye Elevatorparts confirms that the display board’s brightness, display clarity, and structural integrity are intact.

3. Immediate Replacement Conditions

• The display screen is severely cracked, scratched, or the backlight is damaged, resulting in unclear display that cannot be improved by cleaning or adjustment.
• The display board has persistent faults such as missing segments, no display, or frequent flickering, and the fault cannot be eliminated after checking wiring, power supply, and circuit connections.
• The display board’s response speed is significantly reduced, with obvious delays in updating elevator status information (exceeding 2 seconds), affecting passenger use and elevator operation monitoring.
• The display board fails the annual performance test, and the performance indicators (such as brightness, contrast, and signal stability) cannot be restored to the standard range even after maintenance.