IC660BBA026 GE Processor module

Product Description
The GE Fanuc Genius IC660BBA026 is a 24/48 volt DC Current-Source Analog Input Block. IC660BBA026 block is typically used to interface a controller to devices that transmit signals in the range of 4 to 20mA. The IC660BBA026 block has six 4-to-20mA input circuits with isolated channels. Each input provides a 24 volt current loop power supply that generates up to 25mA of current. Six independent inputs are isolated from all the other circuits on the block. Input accuracy is 0.1%. Input conversion time is selected to provide the right combination of noise rejection and input resolution. The IC660BBA026 block has programmable conversion times that range from 16ms – 400ms. Resolution notably increases as the conversion time lengthens. Input resolution is 1µA for 200mS conversion time.

Each input circuit can have upper and lower alarm limits programmed. The block always indicates a fault if either limit exceeds and consequently sends a message to the handheld monitor and CPU. When installing the IC660BBA026 into a redundant bus cable system, use the block’s dedicated digital output to pair it with a 24/48 VDC Bus-Switching Module (BSM). BSM circuitry and two output channels share with each other but are isolated from block inputs.

To configure blocks software and protect configuration from accidental changes, a handheld monitor is used. If communication with the CPU is interrupted, the user may decide whether block output holds at its last state or reverts to default settings. The user can set values for circuit scaling, turn fault reporting on/off, and decide how output feedback errors are handled. IC660BBA026 and IC660BBA106 are similar in all aspects except IC660BBA106 uses a 115 VAC power supply.

Technical Specifications
Rated Voltage: 24/48 VDC
# of Points: 6
Input Range: 4 mA to 20 mA, 0 mA to 25 mA
Resolution: 1 micro Amp
Operating Voltage: 18 – 56 VDC
Points per Common: 6 Isolated points
The IC660BBA026 Current Source Input Block is an input block manufactured by GE Fanuc Automation as a Genius I-O product. This module is a 6-input analog current source block, and it is intended for interfacing with the devices with analog signal current of 4 to 20 milliamps. For the easy configuration of this module, a Phase B hand-held monitor is recommended. It has a voltage to frequency converter functionality that offers digital signals according to the analog current received. The operators of this device can set the upper alarm as well as the lower alarm limits to specific input circuits. In addition, the input circuits comprise current loops rated at 24 Volts which provides a current of 25 milliamps. The GE Fanuc IC660BBA026 Input Block comes with a hand-held monitor that helps to detect diagnostics errors and alarm limits. Additionally, it has features that can help clear the old fault messages from the monitor.

The GE Fanuc IC660BBA025 Current Source Input Block is compatible with the GE Fanuc Series 6 PLCs, Series 5 PLCs, redundancy PLC systems, and Series 90-30 PLCs. It has diagnostic features that report the input current levels that are below the 2 milliamps minimum current limit. This module comes with 70 PPM per degree Celsius of typical thermal drift. The users are advised to leave a free space of 2 inches or more between the blocks during installation to enable proper cooling. The IC660BBA025 Current Source Input Block allows for mounting right side up or upside down through the drilling of the appropriate bolt holes for either orientation. There is also a separate mounting kit available which is shipped separately. The ground Terminal 5 is connected to the block chassis and it can be used to enhance block safety.