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This combination module handles both input and output signals simultaneously. It serves field devices in the Genius I/O control system. The GE IC660BBA020 reduces panel space by integrating two functions into one unit. You can deploy this module for discrete machine control applications.
Technical Parameters Overview
| Parameter | Specification |
|---|---|
| Model Number | IC660BBA020 |
| Category | Combination I/O Module |
| Brand | GE (General Electric) |
| Unit Weight | 1.05 kg (2.31 lbs) |
| Dimensions (H x W x D) | 180 mm x 95 mm x 50 mm |
| Input Points | 8 points (24 VDC) |
| Output Points | 8 points (24 VDC, 0.5 A each) |
| Total Component Count | 142 discrete components |
| Energy Storage | 1,480 µF across 4 capacitors |
| Input Voltage Range | 10-30 VDC |
| Output Type | Sourcing, short-circuit protected |
| Isolation Voltage | 1500 VAC field-to-logic |
| Power Supply Draw | 275 mA at 24 VDC |
Input Channel Specifications
Furthermore, the GE IC660BBA020 provides eight 24 VDC input channels. Each channel accepts signals from pushbuttons, switches, or proximity sensors. An optocoupler isolates each input from the internal logic. LED indicators show the current state of every input point. The module filters input signals with a 1 ms debounce time. Therefore, contact bounce will not cause false triggering.
Output Channel Features
For load control, eight independent output channels complete this module. Each output delivers 0.5 ampere at 24 VDC to field devices. These outputs can drive indicator lamps, relays, or small solenoids. Built-in short-circuit protection shuts down any faulty channel automatically. The GE IC660BBA020 recovers from overloads without permanent damage. Moreover, each output includes a suppressor diode for inductive loads.
Energy Storage and Power Management
Energy management relies on four capacitors storing 1,480 µF total. Two 470 µF capacitors filter the input power stage. One 340 µF capacitor supports the output driver circuits. Another 200 µF capacitor serves the logic processor. This distribution maintains stable operation during load switching transients. Consequently, the GE IC660BBA020 does not drop outputs when adjacent channels turn on.
Component Layout and Signal Isolation
Moreover, 142 components reside on a double-sided, coated PCB. A conformal coating protects the board from moisture and dust. The input section uses eight discrete optocouplers for channel isolation. The output section employs eight MOSFETs with integrated protection. A power transformer provides 1500 VAC isolation between field and backplane. The GE IC660BBA020 withstands ground potential differences safely.
Communications and Genius Bus Interface
This module connects to the Genius bus via a rear terminal block. The bus carries both power and communication signals simultaneously. A dedicated microcontroller manages all I/O scanning cycles. The GE IC660BBA020 reports input changes within 2 milliseconds. It updates outputs as soon as the CPU sends new values. You can place this module up to 7,500 feet from the bus controller.
Installation and Environmental Ratings
You can mount this module on a DIN rail or directly on a panel. Use two M4 screws for secure panel installation. The GE IC660BBA020 operates in temperatures from 0°C to 55°C. It meets Class I, Division 2 hazardous location standards. Therefore, you can use this module in petrochemical environments safely.