Products Description
Rexroth CFG-RD500-P2-NN Encoder Resolution Converter Spare Part

Technical Specifications
Model:CFG-RD500-P2-NN
Brand:Rexroth
Part No:R911200838
Product type:resolver to digital signal conversion module
Input voltage:24V DC control power
Dimension:80mm145mm180mm
Weight:1.25kg
Communication:serial encoder signal,TTL differential signal
Mounting:cabinet panel mounting
Protection class:IP20
Operating temperature:0~45℃
Storage temperature:-20~70℃
Relative humidity:5~95% non-condensing
Certification:CE
LED indicators:Power,Run,Error,Signal status
System compatibility
CFG-RD500-P2-NN belongs to Rexroth Indramat CFG signal conversion family,compatible with CDB servo drives and CCD motion control rack,matched with 2AD series servo motors with resolver feedback,widely used in packaging machinery,robotics,textile machines and material handling equipment.This is a legacy spare part for industrial equipment maintenance replacement.
Function
CFG-RD500-P2-NN is a resolver to digital signal converter module for Indramat servo system.It collects resolver analog position signal from servo motor,converts analog resolver signal into digital differential encoder signal for servo drive to read position and speed data.It realizes real-time high resolution position feedback conversion for rotary resolver motors.
Installation
Mount CFG-RD500-P2-NN inside electrical cabinet.Fix the module securely.Connect 24V DC power,resolver motor cable and encoder feedback cable according to wiring diagram.Check wiring terminals and cable shielding before power-on commissioning.
Interface
‑24V DC power terminal
‑Resolver analog input connector
‑TTL differential digital signal output port
‑Shield grounding terminal
Circuit feature
High precision resolver sampling circuit,built-in signal isolation and surge suppression circuit,digital decoding circuit,strong anti-interference,stable position signal conversion for servo closed-loop control.
Feature
CFG-RD500-P2-NN is obsolete Rexroth spare part.Typical faults:resolver input circuit damage,signal decoding chip failure,output signal distortion,power circuit burnout.Inspect resolver input and digital output signal before replacement.Signal wiring must use shielded cable.
Diagnostic
When module fails,Power LED on,Run LED off,Error LED lit,no position feedback signal,servo axis position jumping,axis encoder loss alarm,motor unable to initialize.
Built‑in function:Resolver analog signal sampling,digital position decoding,differential encoder signal output,high resolution position conversion,used as Rexroth Indramat servo feedback system spare replacement.

Product Brief
CFG-RD500-P2-NN is Rexroth Indramat CFG series resolver-digital conversion module,works with resolver type 2AD servo motors and CDB servo drives.Verify resolver type and signal matching before ordering.ESD protection required during handling and installation.