KEFALONG KH322B

KEFALONG KH322B Washer Controller Instruction Manual

For Commercial Washing Machines

1. Introduction

The KEFALONG KH322B Washer Controller is a sophisticated computer board designed for automatic washing machines. It offers stable and reliable performance, making it an ideal choice for controlling commercial washing machine operations. Featuring a variety of built-in parameters, the controller provides flexible usage for manufacturers and operators. Its graphic buttons and self-explanatory instructions ensure convenient and intuitive operation.

KEFALONG KH322B Washer Controller Front Panel and Main Board
Figure 1: KEFALONG KH322B Washer Controller (Front Panel and Main Board)

This image displays the KEFALONG KH322B Washer Controller, showing both the front control panel with its LCD screen and various function buttons, and the green main circuit board (LY300A) with its components and connectors.

2. Specifications

The following table outlines the key specifications of the KEFALONG KH322B Washer Controller:

Attribute Value
Model KH322B
Used For Equipment Automatic washing machine
Unit Set
Boundary Dimension 196*116mm
Mounting Hole Size 182*102mm
Material Plastic
Type Hand Tool Parts
Origin Mainland China
Power Source USB, Electric
Application Commercial, Hotel, Washing Dyeing Industry
Feature Easy Operation
Control Full-automatic
Installation 100%

3. Components

The KEFALONG KH322B Washer Controller system typically consists of the following main components:

  • Control Panel (KH322B): The user interface with an LCD display and various control buttons for program selection and parameter adjustment.
  • Main Control Board (LY300A): The primary circuit board responsible for processing commands and controlling washing machine functions.
  • Frequency Converter (DM500B): Used for motor speed control in frequency converter mode.
  • Transformer: Provides necessary power conversion for the control system.
KEFALONG KH322B Washer Controller Front Panel
Figure 2: Front Control Panel of KH322B

This image shows the front panel of the KH322B controller, featuring the LCD display and buttons for 'Wash', 'Cold water', 'Heat', 'Soap', 'Extract', 'Hot water', 'Drain', 'Program', 'Insert', 'Up', 'Delete', 'Down', 'Stop', and 'Run'.

KEFALONG KH322B Washer Controller Main Board LY300A
Figure 3: Main Control Board (LY300A)

This image displays the LY300A main control board, highlighting its various relays, connectors (JP1, JP2, JP3, JP4, JP5), and integrated circuits.

4. Installation

Proper installation is crucial for the safe and effective operation of the KH322B controller. Refer to the schematic diagram below for electrical connections. Ensure all connections are secure and follow local electrical codes.

Schematic Diagram of Electrical Connection for KH322B (Frequency Converter Mode)
Figure 4: Electrical Connection Diagram (KH322B - Frequency Converter Mode)

This diagram illustrates the electrical connections for the KH322B controller in frequency converter mode. It shows connections for the transformer (AC220V/AC24V input, AC9.8V output), the main board (LY300A), the frequency converter (DM500B), and various input/output ports (JP1, JP2, JP3, JP4, JP5).

4.1 Connection Points Overview

  • Power Input: Connect AC220V or AC24V to the transformer as indicated. The transformer outputs AC9.8V to the main board.
  • Computer Connection (RJ1): Connect to an external computer for programming or diagnostics.
  • Frequency Converter Connection (RJ2): Connects to the DM500B frequency converter.
  • Liquid Level Sensor: Connect to the liquid level sensor, which should be open to the atmosphere.
  • Temperature Probe Input: Connect the temperature probe to the designated input on JP5.
  • JP1 - Input Common Port: Connect inputs such as Motor Overload, Door-Trip, Shock, and Standby Application.
  • JP2 - Output Common Port: Connect outputs for Brake, Speed 1, Speed 2, FWD (Forward), and Clutch.
  • JP3 - Output Common Port: Connect outputs for Transverse Flush Solenoid and Lock/Door Air Cushion.
  • JP4 - Output Common Port: Connect outputs for Cold Water, Hot Water, Heat, Drain, and Cup 1-7.

Warning: Ensure power is disconnected before making any electrical connections. Incorrect wiring can cause damage to the controller or the washing machine, and poses a safety risk.

5. Operation

The KH322B controller features graphic buttons and an LCD display for easy program selection and parameter settings.

5.1 Basic Controls

  • Wash, Cold Water, Heat, Soap, Extract, Hot Water, Drain, Program: These buttons initiate specific washing functions or program modes.
  • Insert, Up, Delete, Down: Used for navigating menus and adjusting parameters.
  • Run (Green Button): Starts the selected program or confirms settings.
  • Stop (Red Button): Halts the current operation or exits a menu.

5.2 Parameter Settings

To access and modify system parameters:

  1. Enter User Setup Interface: Press and hold the Run button for 3 seconds during the computer power countdown self-check.
  2. Navigate Projects: After entering the parameter settings interface, press the + or - buttons to select the desired project. Press the Run key to enter the selected project.
  3. Select Items and Modify Parameters: Within a project, press the + or - buttons to select specific items. To modify an item, press the Run key for confirmation, then use + or - to change the parameters.
  4. Save Changes: Follow the on-screen prompts to save any modified parameters.
  5. Exit User Settings: Once modifications are complete, hold down the Stop button for 3 seconds to exit the User Settings interface and return to the idle interface.
KEFALONG KH322B Parameter Settings and Upgrade Information
Figure 5: Parameter Settings and Upgrade Information

This image illustrates the parameter setting process, showing the controller interface for selecting projects and modifying items. It also indicates that the appearance of the front panel may be upgraded while core functionality remains unchanged.

6. Maintenance

To ensure the longevity and optimal performance of your KEFALONG KH322B Washer Controller, follow these general maintenance guidelines:

  • Regular Cleaning: Keep the control panel clean and free from dust, moisture, and chemical spills. Use a soft, dry cloth for cleaning.
  • Environmental Conditions: Operate the controller within its specified environmental conditions (temperature, humidity) to prevent damage.
  • Connection Checks: Periodically inspect all electrical connections for tightness and signs of wear or corrosion. Ensure all cables are properly routed and secured.
  • Software Updates: If available, ensure the controller's firmware is up-to-date to benefit from performance improvements and bug fixes.
  • Professional Inspection: For commercial applications, consider regular inspections by qualified technicians to identify and address potential issues before they lead to downtime.

7. Troubleshooting

This section provides a guide to common error messages and their potential solutions. If an issue persists after attempting these steps, contact technical support.

KEFALONG KH322B Fault Diagnosis Table
Figure 6: Fault Diagnosis Table

This table lists various error names, their types (Stop), reset methods (Manually/Auto), reasons, and corresponding troubleshooting steps for the KH322B controller.

No. Error Name Error Type Reset Way Reasons Troubleshooting
#1 Door status not correct Stop Manually, Auto Door switch status is not correct.
  1. Check if the door switch working well;
  2. Check if the parameter setting for door switch input is right.
#3 Imbalance Stop Manually, Auto Imbalance retry failure
  1. Check if the imbalance switch is OK;
  2. Check if the machine is OK.
#5 Emergency stop Stop Manually, Auto Emergency stop input is valid. Check if the setting for emergency stop input is right.
#7 Inverter error Stop Manually, Auto Inverter error input is valid.
  1. Check if the inverter error switch is open/closed;
  2. Check if the setting for inverter error input is right.
#10 Temp sensor open-circuit Stop Manually, Auto Drum temperature sensor open-circuit.
  1. Check if the sensor is connected to controller firmly;
  2. Check if the sensor open-circuit.
#14 Filling overtime Stop Manually, Auto The level is not reached the setting value in limited time.
  1. Check if the water filling pipe is OK;
  2. Check if the water sensor pipe is OK;
  3. Check if the water pressure is OK;
  4. Adjust the parameter setting for the limited time.
#15 Heating overtime Stop Manually, Auto The temperature is not reached the setting value in limited time.
  1. Check if the heating valve is OK;
  2. Check if the heating unit such as steam is OK;
  3. Adjust the parameter setting for the limited time.
#16 Draining overtime Stop Manually, Auto The level is not reached the setting value with balance with drain.
  1. Check if the drain pipe and valve are OK;
  2. Check if the drain pipe is blocked.
#50 Communication error with control board Stop Manually, Auto Communication error between DM500B and control board LY005A.
  1. Check if the communication cable is firmly connected;
  2. Check if the terminal of RS485 is right;
  3. Check if the power supply of DM500B and LY005A is OK.

8. User Tips

  • Always ensure the washing machine is properly balanced to prevent 'Imbalance' errors and ensure efficient operation.
  • Regularly check water inlet and drain pipes for blockages or leaks to avoid 'Filling overtime' or 'Draining overtime' issues.
  • For optimal performance, verify that all sensor connections are secure and free from damage.

9. Warranty and Support

For information regarding warranty coverage, technical support, or service inquiries, please refer to the documentation provided at the time of purchase or contact your supplier. Ensure you have your product model number (KH322B) and any relevant purchase details ready when seeking support.

10. Contact Information

For further assistance or technical inquiries, please contact your vendor or the manufacturer directly. Contact details may be available on the product packaging or the seller's official website.

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