Rexroth 109-0943-4A19-00 Spare Part

Technical Specifications

Model:109-0943-4A19-00

Brand:Rexroth

Product type:Indramat servo drive main control printed circuit board

Power supply:24 Vdc,19.2~28.8V tolerance

Control function:Servo closed-loop motion calculation,encoder signal processing,parameter storage,hardware self-diagnosis,fault indication

Communication:SERCOS bus,internal drive bus,PLC signal interface

Mounting:Plug-in installation inside Indramat servo amplifier

Operating temperature:-10~55℃

Storage temperature:-20~70℃

Relative humidity:5~95% non-condensing

Max working altitude:2000m

Weight:0.30kg

Dimension:180mm82mm32mm

Certification:CE

Protection class:IP20

System compatibility

109-0943-4A19-00 belongs to Rexroth Indramat servo drive system family,matched with DDS/DKC series servo amplifier and synchronous servo motor.Widely applied in machine tools,automation assembly,press-fit and material handling workstations.This is a discontinued legacy spare part for equipment maintenance replacement.

Function

109-0943-4A19-00 is Rexroth Indramat servo drive main control board.It executes current,speed and position closed-loop algorithm for servo motor.It processes encoder feedback signals and stores drive parameters and motor data.It communicates with upper controller via SERCOS bus to receive motion instructions and feed back running status.It triggers protection logic when abnormal signals detected to safeguard power module and motor.It acts as core logic control component for Indramat servo drive unit.

Installation

Install 109-0943-4A19-00 into servo drive designated slot and lock fasteners.Connect encoder and bus wiring according to wiring drawing.Check 24V power polarity and equipment grounding before power-on.

Interface

‑24Vdc power input terminal

‑Encoder feedback connector

‑SERCOS bus interface

‑Status and fault LED indicator

Circuit feature

Built-in ESD and surge suppression circuit,differential signal acquisition design,strong anti-electromagnetic interference performance for industrial workshop environment.

Feature

109-0943-4A19-00 is obsolete Rexroth spare part.Typical faults:drive boot failure,encoder signal error,bus communication interruption,connector pin oxidation.Inspect circuit board and connector pins before replacement.This board must match corresponding Indramat servo drive model,direct substitution without inspection is not recommended.

Diagnostic

When encoder signal loss,bus communication failure or internal hardware fault occurs,the module triggers protection and lights up fault LED.

Built‑in function:Servo closed-loop motion control,encoder signal processing,parameter storage,status monitoring,self-diagnosis and fault alarm,used as Rexroth Indramat servo drive system spare replacement.

Product Brief

109-0943-4A19-00 is Rexroth Indramat old servo drive main control board for machine tool and automation workstation.Confirm compatibility with matched servo amplifier before ordering.ESD protection required during handling and installation.