GE A16B-2200-0490

Product Name: Fanuc A16B-2200-0490 — CNC Control Unit (Series 0)

Product Introduction:
The A16B-2200-0490 is a Fanuc CNC control unit from the Series 0 (A16B-2200 series). It is a compact CNC controller designed for lathe applications. It supports 2-axis control (X, Z) with incremental position detection and is used in Fanuc Series 0 lathe systems (e.g., Fanuc 0T).

Category:
Description

Model Series: Fanuc System 0 — A16B-2200

Technical Specifications:

Parameter Value
Control Type CNC Lathe Controller (Series 0)
Controlled Axes 2 axes (X, Z) — simultaneous 2-axis
Interpolation Linear, circular
Position Detection Incremental (pulse encoder)
PMC (Programmable Machine Controller) Built-in (Ladder logic)
Display 9-inch CRT monochrome (integrated)
Memory 480 KB SRAM (with battery backup)
Program Capacity 4,096 blocks (EIA/ISO code)
Servo Axes 2 (X, Z)
Spindle Control Analog speed control (0–4,000 rpm)
Communication RS-232C (Channel 1), DNC (optional)
Input Voltage 24V DC (control), 200V AC (servo)
Dimensions (W×H×D) 450 × 400 × 250 mm (control unit)
Weight 25 kg (control unit only)
Operating Temp 0°C to +45°C
Storage Temp -20°C to +60°C

Functional Features:

  • 2-axis simultaneous control (X, Z)
  • G-code programming (EIA/ISO)
  • M-code, S-code, T-code, F-code support
  • Thread cutting (single and multiple start)
  • Taper turning, facing, grooving cycles
  • Tool offset compensation (wear, geometry)
  • Fixed cycle drilling, boring, tapping
  • Custom macro B (simple parametric programming)
  • Alarm display (up to 100 alarm histories)
  • Diagnostic screen for servo tuning

Performance Parameters:

  • Pulse Equivalent: 0.001 mm/pulse (standard)
  • Rapid Traverse Rate: 24 m/min (X), 12 m/min (Z)
  • Feed Rate Range: 0–8,000 mm/min
  • Spindle Speed Range: 0–4,000 rpm (analog)
  • Block Processing Time: 16 ms (linear interpolation)

Structural Features:

  • Integrated CRT display unit (9-inch, monochrome, green phosphor)
  • Front panel: MDI keyboard, function keys, soft keys
  • Built-in PMC I/O (24V DC, 256 points max)
  • RS-232C port for DNC / program transfer
  • Battery compartment (CR2025 × 2 for SRAM backup)
  • DIN rail mountable inside cabinet

Working Principle:
The CPU reads the part program from memory (or via RS-232C DNC), decodes G-code commands, calculates tool path coordinates, and sends position commands to the servo amplifiers via pulse trains. The PMC handles auxiliary functions (spindle on/off, coolant, tool change signals) via ladder logic. The CRT displays program, position, alarm, and diagnostic information.

Advantages:

  • Compact, all-in-one control unit (display + controller + PMC)
  • Proven reliability — millions of units in service worldwide
  • Simple operation — ideal for lathe shops
  • Low cost of ownership
  • Easy to retrofit on older Fanuc lathes

Applicable Industries:

  • CNC lathe shops (turning operations)
  • Job shop machining
  • Small to medium manufacturing
  • Educational / training environments

Installation Requirements:

  • Mount in electrical cabinet with CRT facing operator
  • Provide 200V AC 3-phase power for servo amplifiers
  • Provide 24V DC power for control circuit
  • Connect encoder cables from servo motors (max 15m)
  • Connect RS-232C cable for DNC (max 15m)
  • Ground chassis to building earth

Usage Precautions:

  • Replace SRAM backup battery every 2 years (CR2025)
  • Do not power off during program editing — data loss will occur
  • Keep CRT screen clean — use soft cloth only
  • Set correct parameters: pulse equivalent (Pr. 1), motor model (Pr. 7)
  • Perform servo tuning after any mechanical change
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