GE A16B-2200-0855 Axis Board

Technical Specifications

Parameter	Value
Brand	GE
Model	A16B-2200-0855
Category	Axis Board
Weight	1.32 lbs (0.60 kg)
Dimensions	10.2 x 7.5 x 1.6 inches
PCB Layers	8-layer board
Component Count	267 discrete components
Controlled Axes	2 axes
Feedback Interface	Differential encoder
Encoder Input Frequency	1 MHz maximum
Analog Output	±10V per axis
Output Resolution	16-bit DAC
Onboard Memory	512KB SRAM
Energy Storage	8 x 220µF capacitors
Operating Voltage	±15V, 5V DC

Physical Construction and Component Density

This A16B-2200-0855 axis board measures 10.2 inches in length. Its width reaches 7.5 inches with a thickness of 1.6 inches. The total weight comes to approximately 1.32 pounds. Manufacturers placed 267 discrete components on this eight-layer PCB. These components include DACs, op-amps, encoder receivers, and logic gates. The high layer count ensures excellent signal integrity for analog paths.

Axis Control and Feedback Processing

A16B-2200-0855 controls two independent servo axes simultaneously. Each axis provides a differential encoder input for position feedback. The encoder channels accept signals up to 1 MHz frequency. For velocity command output, the board generates ±10V analog signals. A 16-bit digital-to-analog converter delivers precise voltage resolution. Therefore, you get smooth axis motion with minimal following error.

Memory Resources and Energy Storage

The axis board includes 512KB of static RAM for real-time data. This memory stores position registers and feed rate parameters. For energy storage, the board integrates eight 220µF electrolytic capacitors. These capacitors buffer power during sudden acceleration or deceleration. Additionally, twelve ceramic capacitors filter high-frequency noise on supply lines. The A16B-2200-0855 requires three voltage rails to operate. It draws +15V, -15V, and 5V DC from the backplane.

Application Use and System Integration

You will find this board in GE CNC machine tool controls. It handles positioning for milling spindles or lathe axes. The A16B-2200-0855 operates reliably from 0°C to 55°C ambient. Many industrial retrofits use this board to upgrade older servo drives. For example, it works with AC brushless or DC brushed motors. Consequently, this axis board provides precise motion control for demanding cutting operations.