IC660BBS103 | GE Fanuc Genius | 8-Circuit Discrete Output I/O Block

Product Description

IC660BBS103 is a discrete output I/O block from the GE Fanuc Genius Block I/O family, designed for distributed control architectures that require reliable high-voltage field actuation. Unlike analog input modules, this model is specifically engineered for discrete output control and operates at nominal voltages of 115 VAC or 125 VDC.

The module provides eight output circuits organized into four isolated groups, allowing flexible load segregation and improved fault containment. Communication with the control system is handled through the Genius Bus protocol, enabling daisy-chain connection of multiple Genius blocks over long distances while maintaining deterministic data exchange.

With integrated electronic protection, output diagnostics, and industrial-grade construction, this I/O block is well suited for demanding plant-floor and substation environments.

Functional Overview

The IC660BBS103 discrete output block performs the following core functions:
Receives output commands from a Genius Bus controller
Drives high-voltage AC or DC field devices such as contactors, solenoids, and relays
Provides group-based electrical isolation for improved system robustness
Monitors output circuit health and reports fault conditions to the controller

Technical Specifications

Model / Part Number: IC660BBS103
Manufacturer: GE Fanuc Emerson
Product Line: Genius Block I/O
Module Category: Discrete Output I/O Block
Number of Circuits: 8 outputs
Output Grouping: Four isolated groups, two outputs per group

Electrical Ratings:
Nominal Voltage AC: 115 VAC
Nominal Voltage DC: 125 VDC
AC Input Voltage Range: 93 to 132 VAC
DC Input Voltage Range: 105 to 132 VDC
Output Current Rating:
AC: 2 A RMS per circuit
DC: 2 A resistive, 1 A inductive
Peak Block Output Current: 15 A

Timing and Filtering:
Input Filter Range: 10 to 100 ms, configurable in 10 ms increments
Turn-On Delay:
AC: 0.5 cycle plus 1 ms
DC: 1 ms

Diagnostics and Protection:
Output Diagnostics: Short circuit, overload, no-load, overtemperature, loss of I/O power
Input Diagnostics: Open wire, overtemperature, loss of I/O power
Fusing: Internal electronic short-circuit protection
Trip Time: 100 ms (AC), 10 ms (DC) long-time trip

Environmental Specifications:
Operating Temperature: 0 °C to +60 °C
Relative Humidity: 5% to 95%, non-condensing

Mechanical Characteristics:
Mounting: Panel or DIN rail
Weight: 3.4 lbs

Typical Applications

This discrete output block is commonly used in:
Distributed PLC systems using Genius I/O architecture
Control of AC and DC actuators in manufacturing plants
Power and utility control panels requiring high-voltage outputs
Retrofit projects replacing legacy Genius discrete output blocks

Model Clarification Note

The IC660BBS103 is often mistakenly identified as an analog input block. In reality, it is a discrete output module designed for switching high-voltage loads. Applications requiring 4–20 mA analog signal acquisition should use dedicated Genius analog input blocks from the IC660 series.

FAQ

Q: Is IC660BBS103 suitable for analog signals?
A: No. This module is strictly for discrete output control. It does not support analog current or voltage inputs.

Q: Can AC and DC loads be mixed on the same block?
A: Loads must comply with the voltage rating of each isolated group. Mixing AC and DC within a group is not recommended.

Q: How are faults reported to the controller?
A: The block continuously monitors circuit conditions and communicates diagnostic status over the Genius Bus.