Essentials of ARD Elevator Emergency Rescue Device

2. Battery replacement steps

When the battery capacity drops significantly (emergency operation time<30 seconds) or is used for more than 4 years, the battery should be replaced.

Preparations:

Disconnect all input power sources of ARD and wait for the internal capacitor to discharge (at least 5 minutes).

Prepare maintenance free lead-acid batteries of the same specifications (12V 7Ah, recommended original LECOH or brands with the same specifications).

Operating procedures:

Loosen the two tight screws on the bottom cover, push the bottom cover downwards and flip it to the appropriate position with the help of the hinge, and fix the cover with the buckle on the hinge.

Remove the two screws on the upper part of the battery compartment, push down the battery cover, and disconnect the battery connection cable (remove the negative pole first and then the positive pole).

Remove the old battery from the battery compartment.

Insert the new battery and connect the cable (positive pole first, negative pole later) to ensure correct polarity.

Replace the battery cover and tighten the screws.

Loosen the buckle, reset the bottom cover, and tighten the non loosening screw.

Reinstall the front cover and secure the four screws.

Notes:

Waste batteries are classified as hazardous waste and should be handed over to professional organizations for recycling.

After replacement, a complete emergency test is required to confirm that the new battery can support the elevator to run up to the same level.

Fault diagnosis and status indication

There are multiple status indicator lights on the ARD panel (refer to Figure 8 for specific locations). Due to incomplete listing of indicator light tables in the original text, the following is a summary of typical status meanings based on common elevator ARD products:

Measures for handling the meaning of indicator light status

The power indicator light (green) is constantly on and the mains power is normal. The ARD is in standby mode and charging is normal

The power indicator light is off and there is no input power. Check the input circuit breaker and power supply line

Emergency indicator light (yellow/red) flashing. Emergency inverter running normally (simulated emergency test)

The battery indicator light (red) is always on. The battery voltage is too low or there is a battery fault. Measure the battery voltage; If it is less than 30V, it needs to be charged or replaced

The fault indicator light (red) flashes to output short circuit, overcurrent, and over temperature. Disconnect the output load and check if the power module of the elevator control cabinet is short circuited; Restart after cooling down

Communication indicator light (green) CAN communication status does not need to be paid attention to when in normal use

Common faults and troubleshooting:

Possible causes and solutions for the fault phenomenon

The mains power is normal but there is no output from ARD. The internal contactor is not engaged and the control board is faulty. Check the voltage of the contactor coil; Power on again after cutting off the power

During emergency situations, the elevator does not run and the Y1 signal is not output to the controller. The controller does not respond. Measure whether there is 24V at the Y1 terminal. Check the controller parameter settings

After emergency operation, if the X1 signal is not received and does not automatically exit, check the X1 wiring; Simulate X1 high-level test ARD response

Improving ventilation due to overheating during battery charging and aging of batteries in high temperature environments; Replace the battery

After the restoration of mains power, ARD is still in emergency mode. Phase sequence detection error and control board fault check whether the input power phase sequence is correct; Power off and restart