Lauer DJ432 Control Panel for EPC 1200tc Eltex ESC2/EBE

The Lauer DJ432 is a specialized control panel designed for use with the EPC 1200tc embedded industrial computer, specifically configured for Eltex ESC2 and EBE electrostatic control systems. This panel provides an intuitive operator interface for managing electrostatic charging and discharging processes, commonly used in web cleaning and surface treatment applications.

Display and Interface Features

• Model: DJ432

• Compatible Systems: Lauer EPC 1200tc, Eltex ESC2, EBE controllers

• Display Type: Monochrome LCD with LED backlight

• Display Resolution: 240 x 64 pixels

• Display Area: 120 mm x 36 mm

• Keypad: 24 keys with tactile response

• Function Keys: 8 user-configurable keys for electrostatic control functions

• Status LEDs: Power, communication, and process status indicators

Technical Specifications

• Processor: 16-bit at 20 MHz

• Memory: 128 KB Flash, 32 KB RAM

• Real-Time Clock: Yes

• Communication Ports: 2 x RS-232, 1 x RS-485

• Protocols: Lauer, Modbus RTU, Eltex proprietary

• Power Supply: 24 V DC, 300 mA

• Operating Temperature: 0°C to 50°C

• Protection Rating: IP65 (front)

• Panel Cut-Out: 138 mm x 68 mm

• Dimensions: 160 mm x 96 mm x 45 mm

• Weight: 0.4 kg

Functional Description

The DJ432 panel is purpose-built for electrostatic applications. It displays key process parameters including charging voltage, discharge current, web speed, and electrode status. The interface allows operators to adjust setpoints, monitor alarm conditions, and run calibration routines. The function keys are typically mapped to operations such as Start Corona, Stop, Adjust Power, and Clean Electrode.

The panel can store up to 50 process recipes, each defining the optimal electrostatic settings for different web materials and line speeds. An automatic logging feature records process deviations, aiding in quality assurance and preventive maintenance planning. The RS-485 port enables communication with Eltex controllers, while the RS-232 ports are available for connection to host computers or remote monitoring displays.

Installation and Mounting

Install the DJ432 in a control cabinet cut-out of 138 x 68 mm. Secure with the included mounting clips. Connect the power supply to the terminal block; ensure the ground connection is made to maintain EMI immunity. For communication with the Eltex ESC2, use a shielded RS-485 cable. The panel is supplied with a pre-configured Eltex driver, but adjustments for baud rate and addressing can be made through the setup menu.

Programming and Configuration

Configuration is performed with the Lauer PCS Editor. The panel comes with a predefined Eltex application template, but users can modify screen layouts, add custom alarms, or change key functions. The configuration can be downloaded over RS-232. A special maintenance mode allows service technicians to view raw data from the Eltex controllers for detailed troubleshooting.

Maintenance and Diagnostics

The panel's diagnostics provide real-time feedback on communication integrity and controller status. It alerts the operator to electrode shorts, overcurrent conditions, and communication errors. The internal battery should be replaced every 3 years. Regular cleaning of the front panel with a soft cloth is recommended to maintain visibility.

Integration with Electrostatic Systems

This control panel integrates seamlessly with Eltex ESC2 and EBE systems, providing a centralized operator interface that replaces multiple discrete controls and indicators. It can also be used as part of a larger control network, communicating with PLCs or SCADA systems via Modbus.

Environmental and Safety Compliance

CE and RoHS compliant. The panel is designed for industrial environments, with ESD protection on all external connections. It is suitable for use in clean and dirty web processing areas.

Technical Support and Documentation

Lauer provides a detailed hardware manual, a configuration guide for Eltex systems, and a wiring diagram. Eltex-specific parameter tables are included in the supplementary documentation.

Conclusion

The Lauer DJ432 Control Panel offers a dedicated, efficient operator interface for Eltex electrostatic systems. Its robust build and clear display ensure reliable operation in demanding web handling applications.