Elevator Rope Clamp Control Device DAA21190A1/A2: Reliable Safety Control for Elevator Rope Systems

Proper Usage Methods of Elevator Rope Clamp Control Device DAA21190A1/A2

1. Installation & Commissioning

• First, cut off the elevator power supply and ensure safety. Thoroughly clean the installation position on the elevator traction machine or rope tensioning device to remove dust, oil stains, and debris, ensuring a stable and flat mounting base for the device.
• Fix the rope clamp control device firmly using matching bolts and nuts according to the elevator manufacturer’s standard installation positions. Ensure the clamp body is accurately aligned with the traction rope, with the clamping surface closely fitting the rope without deviation. The tightening torque of the bolts should comply with technical requirements (typically 15–20 N·m) to avoid loosening due to elevator operation vibration.
• Correctly connect the wiring and control pipelines: According to the wiring diagram and pipeline connection specifications provided by Nanjing Zhuye Elevatorparts and the elevator manufacturer, connect the device’s control signal wires, power wires (for electric control models), and hydraulic/pneumatic pipelines (for hydraulic/pneumatic control models) to the corresponding terminals and interfaces of the elevator main controller. Ensure the wiring is tight and reliable, the pipeline connections are sealed properly without leakage, and the wire insulation layer and pipeline outer wall are intact to avoid faults such as short circuits or oil/gas leakage.
• Post-installation commissioning: Restore the elevator power supply and relevant hydraulic/pneumatic systems, operate the elevator in inspection mode, and test the control performance of the device. Verify that the rope clamp can be accurately clamped and released according to the controller’s signals; simulate emergency braking conditions to confirm that the device can quickly trigger the rope clamping function, ensuring the elevator stops stably. Check the real-time monitoring data of the device through the elevator control system to ensure the clamping state is displayed correctly. If there is abnormal clamping, slow response, or signal deviation, recheck the installation position, wiring, and pipeline connections and adjust in time.

2. Daily Operation & Routine Inspection

• During elevator operation, monitor the working state of the rope clamp control device through the elevator control system’s fault code display and real-time monitoring data. Fault codes related to the device or abnormal clamping force data usually indicate issues such as device stuck, pipeline leakage, or control signal failure.
• Conduct weekly visual inspections: After cutting off the power supply and relevant systems, check the appearance of the device for damage, including cracks or deformation of the clamp body, looseness of bolts and wiring terminals, damage or aging of wires and pipelines, and oil/gas leakage (for hydraulic/pneumatic models). Retighten loose fasteners in a timely manner, replace damaged wires and pipelines, and repair the sealing of leaking connections.
• Regularly check the clamping surface of the device: Clean the clamping surface with a dry, lint-free cloth to remove dust and debris; check for wear or deformation of the clamping surface. If the wear exceeds the standard range (typically ≥0.5mm), repair or replace the clamp body in time to ensure sufficient clamping force.

3. Regular Maintenance

• Every 3 months, thoroughly inspect the installation positions, wiring connections, and pipeline connections of the device. Adjust immediately if there is deviation due to elevator vibration or structural deformation; check the tightness of all fasteners and retighten if necessary.
• Every 6 months, conduct a comprehensive performance test: Use professional instruments to detect the clamping force, response time, and control precision of the device. For hydraulic/pneumatic control models, check the oil/gas pressure and replace the hydraulic oil or filter element (if applicable) according to the maintenance specifications. For electric control models, detect the output signal of the control module to ensure it meets the standard requirements.
• Annually, conduct a professional disassembly inspection: Contact Nanjing Zhuye Elevatorparts’ technical personnel to disassemble and inspect the internal components of the device, including the control valve, spring, and sensor. Clean the internal components, replace aging or worn parts, and calibrate the control precision to ensure the long-term stable operation of the device.

Recommended Replacement Cycle of Elevator Rope Clamp Control Device DAA21190A1/A2

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 machine rooms, or areas with strong vibration, the replacement cycle should be shortened to 5–6 years. Harsh conditions accelerate the aging of metal components, corrosion of the clamp body, and degradation of control module performance, reducing the device’s reliability.
• Low-Frequency Use Scenarios: For elevators with low usage frequency (e.g., villa elevators, small office buildings with less than 3,000 monthly operations) and stable operating environments, the replacement cycle can be appropriately extended to 8–10 years after a professional inspection by Nanjing Zhuye Elevatorparts confirms that the device’s clamping force, control precision, and structural integrity are intact.

3. Immediate Replacement Conditions

• The clamp body is severely cracked, deformed, or worn, and the clamping force cannot meet the standard requirements even after repair.
• The control module fails, resulting in inability to clamp or release the rope normally, or frequent false triggering of the clamping function that cannot be resolved by maintenance.
• Hydraulic/pneumatic models have severe oil/gas leakage that cannot be repaired, or electric control models have irreversible faults such as short circuits of the control module.
• The device fails the annual performance test, and the performance indicators cannot be restored to the standard range even after maintenance.