Products Description
FANUC AAD04A 4CH Analog Input Module P/N A03B-0819-C051

Technical Specifications
Model:A03B-0819-C051
Brand:FANUC
System compatibility:AAD04A 4-channel analog input module for FANUC Series16i,Series18i,Series21i CNC systems. Plug-in for A03B-0819 ABU05A / ABU10A I/O base rack. Widely used for CNC lathes and vertical machining centers.
Function:4-channel differential analog input module,12-bit ADC resolution. Supports multiple signal types: ±10V,0-10V voltage and 4-20mA current signals. Collects analog signals from pressure,flow,temperature sensors and converts analog signals into digital data for CNC host via I/O Link bus.
Installation:Plug into slot of ABU series I/O base rack,screw terminal block for field sensor wiring.
Interface:
‑Backplane bus connector for ABU I/O rack
‑4 differential analog input channels
‑Screw terminal block for sensor wiring
‑LED channel status indicators
‑24VDC power supply terminal
Circuit feature:Isolated analog sampling circuit,anti-interference filter,overvoltage protection per channel,surge suppression.
Feature:Legacy discontinued FANUC analog I/O module. 12-bit resolution,differential input design reduces field noise interference. Common faults:input channel drift,terminal corrosion,ADC circuit damage. Confirm I/O base rack and CNC system before replacement.
Diagnostic:CNC system will display analog signal acquisition alarm when fault occurs;LED indicators show each channel working state.
Power supply:24VDC
Protection class:IP20
Horizontal operating temperature:0℃ ~ +55℃
Storage temperature:-20℃ ~ +80℃
Relative humidity:5%‑90% non‑condensing
Vibration:Complies with machine tool industrial environmental requirement
Weight:0.38kg
Dimensions:130mm ×85mm ×30mm
Certification:CE,UL

Built‑in function
A03B-0819-C051 AAD04A analog input module collects field analog sensor signals and converts them to digital data for FANUC CNC controller. Widely used for CNC machine electrical cabinet spare‑part replacement.
Product Brief
A03B-0819-C051 belongs to FANUC A03B series I/O spare parts family,AAD04A 4-channel 12-bit analog input module. Verify ABU base rack and CNC system software version before ordering. Check sensor wiring and signal grounding during commissioning. Widely applied for CNC equipment maintenance and renovation. ESD anti‑static protection shall be followed during installation.