SIEB & MEYER 26.44.0041.7 Axis Control Board

Module Feature

SIEB & MEYER 26.44.0041.7 is rack plug-in digital servo axis control board. It acts as single-axis motion calculation core and cooperates with matched SIEB & MEYER servo power modules. It acquires encoder feedback signals and runs position, speed and torque closed-loop servo algorithms. It supports rack backplane bus communication and analog command input. Equipped with hardware watchdog and multi-channel fault detection. Compact plug-in rack construction with stable EMC performance. Widely applied in CNC machine tools, semiconductor processing equipment and precision automation production lines.

Working principle

The control board receives motion setpoint commands from upper CNC or motion controller. It reads real-time position and speed feedback from motor encoder, performs high-speed closed-loop calculation, and outputs reference control signals to matched servo power module. It continuously monitors operating status of the power stage. Once faults are detected, it immediately disables drive output and transmits fault code to host system for safety interlock.

Onboard components

DSP main processor, FPGA logic chip, encoder signal processing circuit, analog acquisition circuit, backplane bus interface, watchdog circuit, EMC filter, gold finger backplane connector, LED status array.

LED indicators

Front panel LED indicators for DC power supply, board ready, servo enable, bus communication status and fault code display.

Hardware self-diagnosis

Visual inspection of PCB, connectors and backplane gold fingers; power rail voltage measurement; encoder cable continuity test; read LED fault codes; check PCB for burn marks or corrosion; verify bus communication connection.

Programming software

SIEB & MEYER commissioning software for axis parameter configuration, servo gain tuning, status monitoring and fault log analysis.

Electrical & Process Parameters

Model: 26.44.0041.7 Input voltage: DC24V Control mode: Position / Speed / Torque Command interface: Rack backplane bus / Analog command Signal: Encoder position feedback Cooling: Natural convection cooling Protection: Watchdog, encoder loss, communication fault, overvoltage monitoring Mounting: Rack plug-in mounting

Mechanical & Structure

Mounting: Rack plug-in mounting Protection class: IP20 (inside control cabinet)

Environmental

Operating temperature: 0℃ ~ +50℃ Ambient humidity: 5~95% non-condensing Certification: CE compliant Status: SIEB & MEYER digital servo axis control board

System compatibility

Compatible with SIEB & MEYER series servo power modules and rack power supply units, forms complete single-axis high precision servo drive system.

Function

26.44.0041.7 axis control board manufactured by SIEB & MEYER. It receives motion commands from upper control system, executes closed-loop servo calculation and sends control references to power module for precise motor positioning. Faults including encoder loss, communication interruption and watchdog trigger will stop servo operation and trigger alarm. It is the core control card for SIEB & MEYER rack servo drive system.

Installation

Follow lockout/tagout safety procedure before installation. Cut off all rack power completely. Insert the board into designated rack slot and lock the handle securely, confirm stable backplane contact. Connect encoder cable and control signal cable correctly. Download axis parameters and tune servo gains via SIEB & MEYER commissioning software, perform trial run and positioning verification before formal operation.

Interface

DC24V power pin, encoder signal connector, backplane bus connector, analog command terminal, fault alarm output terminal of 26.44.0041.7.

Diagnostic

No power LED: Missing DC24V supply or blown onboard fuse. Board not ready: Poor backplane contact, configuration error or hardware damage. Encoder fault: Broken encoder cable, wrong wiring or encoder hardware defect. Communication error: Bus parameter mismatch, missing terminal resistor or loose connector. Watchdog alarm: Software crash, strong electromagnetic interference or hardware defect.

Product Brief

26.44.0041.7 SIEB & MEYER digital servo axis control board,DC24V supply,rack plug-in design,supports position/speed/torque closed loop control,matching SIEB & MEYER servo power modules,for CNC and semiconductor high precision single-axis motion control.