DSC-G220 External Controller for Area Sensor Safety Light Curtain

Key Features

• Fast Response ≤5ms — provides a response time of ≤5ms, supporting rapid detection and safety control when the protected area is interrupted.
• Dual-Channel Safety Architecture — uses a dual-channel safety architecture to provide redundant safety logic for reliable operation in machine safety applications.
• AC110–220V Input — the standard controller is designed for AC110–220V input power, suitable for industrial electrical environments.
• AC to DC24V Power Conversion — the internal power supply circuit converts the incoming AC power into DC24V, providing the required power for the connected safety light curtain emitter and receiver.
• Flexible Safety Device Connection — designed to work with safety light curtains and can also be integrated with safety-related devices such as emergency stop switches according to the machine safety system configuration.
• Diagnostic LED Indicators — clear LED status indicators provide convenient visual information for commissioning, troubleshooting and maintenance.
• Configurable Safety Output Logic — supports safety control output logic for different machine layouts and safety protection requirements.
• Multi-Sensor Customization — supports customized configurations for 1-to-2, 1-to-3 and 1-to-4, allowing one customized controller configuration to support multiple safety light curtain protection zones.
• AC380V Customization — an AC380V input version is available on request for industrial applications requiring a 380V power supply.
• Industrial-Grade Design — designed for use in industrial automation equipment and machine safety applications.

Technical Specifications

AC110–220V to DC24V Power Conversion

The DSC-G220 integrates an internal power conversion circuit designed to convert industrial AC power into DC24V for the connected safety light curtain system.

Power Flow

This configuration allows the controller to serve as an external power and safety control interface for the connected light curtain system.

Multi-Sensor Custom Configuration

The DSC-G220 can be customized according to different machine layouts and protection requirements.

1-to-2 Configuration

A customized DSC-G220 configuration can support two safety light curtain sets for applications requiring two independent protection areas.

1-to-3 Configuration

A customized configuration can support three safety light curtain sets for machines with multiple protection zones.

1-to-4 Configuration

For larger machines or systems requiring multiple protection areas, the DSC-G220 can be customized for four safety light curtain sets.

Custom Configuration: The required configuration should be confirmed with DAPPRA according to the actual safety light curtain system and machine wiring requirements.

AC380V Customization

The standard DSC-G220 is designed for AC110–220V input.

For industrial equipment using a 380V power supply, an AC380V customized version is available on request.

Please confirm the required input voltage when requesting a customized DSC-G220 configuration.

External Controller Design

Unlike a built-in controller, the DSC-G220 is installed externally from the safety light curtain.

The external configuration provides a dedicated controller enclosure and allows the controller to be positioned separately from the sensing components according to the machine structure.

This configuration is suitable for industrial equipment where the safety controller needs to be installed inside a control cabinet or at a dedicated external position.

Safety Control

The DSC-G220 is designed as a safety interface for systems using safety light curtains and related safety devices.

When the safety light curtain detects an interruption in the protected area, the safety control system can respond according to the configured safety logic and machine control circuit.

The controller is designed to provide:

• Fast safety response
• Redundant safety logic
• Safety device interface
• Clear status indication
• Reliable machine safety control

The actual machine safety function depends on the complete safety circuit, connected safety devices and machine control configuration.

Wiring Overview

The DSC-G220 is connected between the AC power supply, the safety light curtain emitter and receiver, and the machine safety control system.

For the complete wiring diagram and terminal details, refer to the DSC-G220 Wiring Diagram available in the Downloads section.

Industrial Applications

The DAPPRA DSC-G220 can be used in a wide range of industrial automation and machine safety applications.

Machine Guarding

Suitable for machine guarding applications including:

• Press machines
• Cutting machines
• Shearing equipment
• Forming machinery

Automated Production Lines

Suitable for:

• Automated production lines
• Robotic work cells
• Assembly equipment
• Material handling systems

Packaging & Conveyor Systems

The DSC-G220 can be integrated into:

• Packaging machinery
• Conveyor systems
• Material handling equipment
• Personnel protection zones

CNC & Industrial Machinery

Applications may include:

• CNC machines
• Textile machinery
• Assembly machinery
• Automated manufacturing equipment

Typical Application

A typical DSC-G220 safety system consists of:

For multi-zone applications, customized configurations can be provided for 1-to-2, 1-to-3 or 1-to-4 safety light curtain systems.

Product Dimensions

The DSC-G220 external controller has an overall dimension of:

82 × 205 × 240 mm

Please refer to the DSC-G220 CAD Drawing for detailed installation dimensions.

DSC-G220 at a Glance

Technical Documents

Frequently Asked Questions

Technical information about the DAPPRA DSC-G220 External Safety Light Curtain Controller, including power input, output, response time, multi-sensor configuration and applications.