A02B-0306-B502 FANUC 31i-A5 CNC Control Basic Unit

A02B-0306-B502 FANUC Series 31i-A5 CNC Control Basic Unit

Technical Specifications

• Brand: FANUC
• Model: A02B-0306-B502
• Series: FANUC Series 31i-A5
• Category: CNC control basic unit (2 slots)
• Supply voltage: 24 VDC ±10%
• Heat output: 33 W (7.2" STN monochrome LCD-mounted type)
• Operating ambient temperature: 0 to 58 °C
• Storage/transport temperature: −20 to 60 °C
• Relative humidity: 75%RH or less normal; up to 95%RH for short periods (≤1 month), no condensation
• Weight: ~2.2 kg (LCD-mounted type)
• Dimensions (H×W×D): Not published as a numerical table; outline drawing per FANUC B-63943EN/02 Appendix A

Communication and Interfaces

• JD36A: RS-232C serial port for programming and data transfer
• JD51A: I/O Link port for connecting peripheral I/O modules
• CD38A: Ethernet port for network connectivity
• Supported protocols: RS-232C, I/O Link, and Ethernet
• Expansion: Add communication options through backplane I/O modules

Environmental Durability

• The control unit runs reliably at ambient temperatures from 0 to 58 °C
• Storage and transport conditions range from −20 to 60 °C
• Normal operation tolerates humidity up to 75%RH without condensation
• Short-term exposure tolerates up to 95%RH for one month or less
• The sealed LCD-mounted housing resists dust and workshop contaminants

Installation Guide

• Mount the basic unit inside a control cabinet with adequate airflow
• Connect a regulated 24 VDC ±10% power supply to the unit
• Route the RS-232C cable to the JD36A connector
• Link peripheral I/O devices through the JD51A I/O Link port
• Attach the Ethernet cable to the CD38A port for network access
• Verify all connectors seat fully before you apply power
• Confirm the ambient temperature stays within 0 to 58 °C during operation

Package List

• 1 × FANUC A02B-0306-B502 Series 31i-A5 CNC control basic unit
• 1 × Protective shipping carton with anti-static foam
• 1 × Connector hardware set as supplied by FANUC
• Shipping method: FedEx, UPS, or DHL

Lifecycle and Compatibility

• The Series 30i-A/31i-A/32i-A generation is now legacy hardware
• FANUC superseded this generation with the Series 30i/31i/32i-B
• The unit suits maintenance, spare parts stock, and retrofit projects
• Identity follows the official B-63945EN/02 Maintenance/Connection Manual

FAQ

• Q: What is the supply voltage of the A02B-0306-B502?
  A: The unit accepts 24 VDC ±10% from a regulated power supply.
• Q: Which communication ports does this control unit provide?
  A: It provides JD36A (RS-232C), JD51A (I/O Link), and CD38A (Ethernet) ports.
• Q: What is the operating temperature range?
  A: The unit operates from 0 to 58 °C and stores from −20 to 60 °C.
• Q: How much heat does the unit generate?
  A: It produces 33 W of heat output in the 7.2" STN monochrome LCD-mounted configuration.
• Q: What is the condition and availability?
  A: The unit is brand new and original. We hold stock and ship within 5 days.
• Q: Which shipping carriers do you use?
  A: We ship with common carriers such as DHL, FedEx, and UPS.
• Q: What is the return policy?
  A: We support returns within 30 days.