Bosch Rexroth DIAX03-ELS-05VRS Control Module
May 29, 2026

Bosch Rexroth DIAX03-ELS-05VRS Control Module

Product Description The DIAX03-ELS-05VRS is a core electronic module for DIAX03 motion control systems. It serves as an axis logic and safety control unit, coordinating servo drive operation, executing logic programs and handling safety interlock signals. It is widely matched with DDS3.1 series servo drives for high-performance multi-axis automation.

Description

Model Definition

DIAX03: Third-generation DIAX motion control system platform

ELS: Electronic Logic & Safety module

05: Version 5 hardware revision

VRS: Standard functional version with complete safety logic

Technical Specifications

Electrical Parameters

Supply voltage: 24 V DC (20 V DC to 28 V DC)

Power consumption: Approximately 180 mA

Internal bus voltage: 300 V DC (compatible with system DC bus)

Signal level: 24 V DC digital signal

Isolation voltage: 500 V AC between internal circuit and field signals

Mechanical & Environmental Parameters

Mounting form: Standard slot-mounted for DIAX03 control rack

Dimensions (W×H×D): 95 mm × 210 mm × 35 mm

Weight: Approximately 0.45 kg

Operating temperature: 0 °C to +45 °C

Storage temperature: -30 °C to +85 °C

Protection class: IP20

Interface and Communication Configuration

Backplane interface: Internal system bus for data exchange with CPU and servo drives

Signal terminals: Dedicated ports for safety circuits, enable signals and fault feedback

Communication protocol: Supports internal DIAX bus and SERCOS linkage

Status indicators: LED indicators for power, running status, fault and safety state

Core Functions

Executes axis control logic and motion sequence commands

Monitors system safety interlocks and triggers protection actions in real time

Processes drive enable, fault reset and status feedback signals

Realizes data interaction between main controller and DDS series servo drives

Built-in self-diagnosis function to quickly locate circuit and signal faults

Ensures coordinated operation of multi-axis servo systems

Application Scenarios

Full set configuration of DIAX03 control system with DDS3.1 servo drives

Multi-axis linkage control for CNC machine tools

High-precision synchronous control for printing, textile and packaging machinery

Automated production lines and gantry motion systems

System upgrade and replacement of original DIAX03 rack modules

Usage and Maintenance

Install the module only after cutting off the entire system power supply

Ensure firm insertion into the rack slot and reliable backplane contact

Check safety circuit wiring strictly in accordance with specifications

Keep the control rack well ventilated and avoid overheating

Inspect LED status and terminal connection regularly every six months

Test safety interlock function periodically to guarantee operational safety


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