GE Fanuc IC670CHS002E IC670CHS002 Dual-tier I/O Terminal Base

GE Fanuc IC670CHS002E I/O Terminal Base

Configured for distributed field wiring termination and bus connectivity in GE Field Control systems, the GE Fanuc IC670CHS002E (IC670CHS002 Dual-tier I/O terminal base) provides direct physical/electrical execution. This terminal base establishes the mechanical foundation and backplane communication link for compatible I/O modules, supporting high-density integration within industrial automation architectures.

Suffix Breakdown & Model Matrix

The IC670CHS002 series features hardware revision logic indicated by the suffix letter. The "E" suffix designates a specific hardware iteration. Note that the base supports the installation of up to two I/O modules specifically rated for suffix "J" or later revisions, ensuring compatibility with advanced module circuitry and hot-swap backplane logic.

Hardware Specifications

Backplane Bus Communication Velocity and Hot-Swap Tolerances

As a critical structural component within GE Fanuc Field Control systems, the terminal base integrates directly with the backplane bus, supporting deterministic network execution. The integrated backplane connector facilitates rapid module initialization and data exchange without introducing bus latency. Furthermore, the base hardware is engineered to support active hot-swap operations, isolating the bus circuitry to allow for the safe live insertion or removal of I/O modules without interrupting adjacent channel processing or requiring a master CPU reset.

Frequently Asked Questions

Q: What are the wire gauge limits and torque specifications for the field terminals on the IC670CHS002E? A: The box-style screw terminals accept either a single AWG #14 wire or two AWG #18 to AWG #22 wires per connection point. Installers must torque the terminals to exactly 4.5 lb-in (0.51 Nm) to maintain electrical contact integrity and prevent loosening under industrial vibration.

Q: Can modules be replaced on this base while the system is under active power? A: Yes, the terminal base architecture physically supports hot-swap operations (live insertion and removal) for compatible I/O modules. However, the system backplane logic dictates that only modules with suffix "J" or later are certified for this operational state on this specific base structure.

Q: Does the terminal base provide galvanic isolation between the field wiring and the backplane? A: The terminal base acts primarily as a passive mechanical and electrical pass-through. Galvanic isolation and signal conditioning are determined and executed by the specific I/O module plugged into the base, not the base itself.

Field Installation Guidelines

When mounting the terminal base to a DIN rail or flat panel, ensure the latching mechanism is fully engaged to prevent mechanical shifting under operational vibration. Technicians must verify that the backplane pins are free of debris prior to seating the I/O modules to prevent contact bridging or bus communication faults. Maintain strict physical segregation between high-voltage power lines and low-voltage signal wiring within the cabinet routing to mitigate electromagnetic interference coupling into the terminal block. Finally, apply consistent torque (4.5 lb-in) across all 37 connection points; under-torquing leads to high-resistance joints,