GE A03B-0807-C104 Input Module for GE Fanuc CNC Systems

The GE A03B-0807-C104 captures discrete input signals from machine devices. You can install this module directly into GE Fanuc CNC control racks. It accepts 24 V DC signals from pushbuttons, sensors, and limit switches. This unit suits machine tool and factory automation applications.

Technical Specifications and Hardware Layout

This input module measures 260 mm in height. Its width reaches 120 mm, and the depth equals 45 mm. The GE A03B-0807-C104 weighs approximately 0.52 kilograms. A single internal PCB holds all input filtering and isolation circuits. The module provides sixteen channels for 24 V DC sinking inputs. It stores no energy in capacitors or internal batteries. One 50-pin front connector handles all field wiring connections. Sixteen green LEDs display the real-time status of each channel.

Input Specifications and Electrical Performance

The GE A03B-0807-C104 accepts input voltages from 0 V to 30 V DC. It recognizes a logic “1” at 15 V DC or higher. A logic “0” occurs below 5 V DC reliably. Each channel draws a typical input current of 6 mA at 24 V DC. The module filters signal noise with a built-in 2 ms time constant. Consequently, this delay eliminates false triggering from contact bounce. Optical isolation separates the field side from the CNC backplane logic. All sixteen inputs share a single common return terminal for 24 V DC.

Installation and Practical Application Tips

You must insert this module firmly into a dedicated CNC rack slot. Transitioning to wiring, use 0.5 mm² to 1.5 mm² stranded copper wire. The screw-type terminals require a 3 mm flathead screwdriver for tightening. For high-noise environments, use shielded cables for all input signals. Always power off the CNC before removing or inserting the module. The operating temperature range spans from 0°C to 55°C reliably.