Huichuan MCTC-ARD-C Elevator Automatic Rescue Device (ARD)

Product positioning and core functions

Product positioning

MCTC-ARD-C is an elevator automatic rescue device (ARD) independently developed by Huichuan

Perfectly compatible with Huichuan NICE series elevator controller

Core function: Automatic emergency rescue in case of power outage/phase loss in the city

work logic

Normal: Monitor the mains power and charge the battery

Exception: Power outage/phase loss detected for 200ms, confirmed before starting

Rescue: Output emergency power → Drive elevator in light load direction → Open door and release personnel on the nearest floor

Recovery: Automatically switch back to the main power supply after the mains power is normal

Model and specifications

1. Naming rules for models

MCTC C ARD 40 15

40: Three phase 380V; 20:220V

15：15kW；30：30kW

2. Core technical parameters

Parameter specifications

Input voltage three-phase 380~440VAC, 50/60Hz

Output voltage single-phase 380VAC, 50 ± 5Hz

Adaptive power 4015: ≤ 15kW; 4030：≤30kW

Battery configuration 12V x 3 cells x 7Ah

Emergency time limit: maximum operation time of 3 minutes, automatic stop

Protection level IP20

Working temperature -10 ℃~+40 ℃

Altitude<1000m (over 1000m requires capacity reduction)

Main components

Component specifications/models

MCB ARD3T153U1

Drive board ARD3T153M1

Battery 12V × 3 × 7Ah (Lishi DJW12-7.0)

Contactor (15kW) 3RT6028-1AN20380V/38A

Contactor (30kW) 3RT50-36-1AN20380V/50A

Air switch DZ47N, 400VAC/63A

Terminal and DIP settings

1. Key terminal functions

Terminal type identification function

Power input L1/L2/L3/N/PE mains three-phase input

Power output R/S/T connected to elevator control cabinet

Emergency operation start signal for control terminal Y1

X1 emergency operation completion signal

24V/COM external power supply and common terminal

CANH/CANL reserved communication

2. DIP switches K1/K2 (factory default 380V three-phase)

K1 K2 configuration

OFF ON three-phase 380V (default)

ON OFF single-phase 220V

ON, three-phase 220V

3. Protection switch

K4: Battery output cut-off switch

K5: Complete machine charging/power supply air switch

Installation specifications

Installation method

Wall mounted/floor standing

Installation location: inside the elevator machine room or shaft

Installation size (representative model)

Model Width W Depth D Height H Weight

4015 wall mounted 248mm 151.2mm 480mm 15kg

4030 wall mounted 303mm 151.2mm 480mm 17kg

Environmental Requirements

No conductive dust, corrosive/flammable gases

Humidity<95% RH (no condensation)

Natural ventilation and heat dissipation

Debugging process

Before powering on

K4 and K5 are turned off

Check wiring: Input/output must not be reversed

power on

Close K5 → Install panel → Close K4 → Close main power

Check battery: 3-4 grid battery level lights are on

Emergency testing

The elevator is located on the middle floor

Cut off the main power supply and verify automatic rescue

Maintenance and battery replacement

Precautions for battery replacement

The entire machine must be powered off for operation

Prohibition of short circuit/reverse connection between positive and negative poles

Use an insulated screwdriver

Battery specification: 12V x 3 cells, 7Ah

warranty

2-year limited warranty

Artificial damage and unauthorized modifications are not covered by the warranty

Fault diagnosis

1. Indicator light description

Power indicator: 25% per grid; The left light flashes while charging

Fault light: constantly on/flashing indicates a fault

2. Common faults and their solutions

Methods for handling the causes of fault phenomena

Output short circuit/overcurrent wiring error, load short circuit. After troubleshooting, power on again

Over temperature protection: The radiator automatically recovers when it reaches 90 ℃ and cools down to below 82 ℃

Battery undervoltage discharge ＜ 28VDC, charging after mains power recovery

Unable to activate emergency K4/K5 not closed, battery depletion<27V, close or replace battery

Key issues

Question 1: What is the complete emergency rescue process for MCTC-ARD-C? How to handle timeout?

answer

Detected power outage/phase loss, confirmed for 200ms

ARD battery discharge, output 380VAC emergency power supply

Send Y1 emergency start signal to elevator controller

The controller drives the elevator to run in the direction of light load until the nearest floor opens the door

Stop output and exit emergency mode upon receiving X1 completion signal

If no completion signal is received within 3 minutes, the output protection will be automatically forced to stop

Question 2: What are the consequences of reversing the input and output of ARD? How to avoid it?

answer

Consequence: Direct damage to the internal motherboard and power components of ARD, irreparable

Avoidance methods:

Strictly follow the terminal definition for wiring: L1/L2/L3=mains input, R/S/T=output to elevator

Double check after wiring

Before powering on, check the phase and line sequence with a multimeter

Question 3: What is the threshold for determining that the ARD battery cannot be rescued due to low power? How to recover?

answer

Discharge protection threshold: ＜ 28VDC → stop output, rescue prohibited

Power loss judgment during startup: ＜ 27VDC → Fault light on, unable to start

Recovery method:

Restore mains power, ARD automatic charging

After charging, it still cannot be used. Replace it with 3 standard 12V 7Ah batteries