GE IC660BBD120 | Input and Output Block

This I/O block provides both discrete inputs and outputs in a single device. It connects to the Genius bus for remote I/O applications. The unit mounts directly on machinery near sensors and actuators.

Technical specifications

Parameter	Specification
Brand	GE Fanuc
Model	GE IC660BBD120
Product Family	Genius I/O
Category	Input and Output Block
Input Channels	16 (sixteen) 24V DC
Input Current	7 mA per channel
Output Channels	12 (twelve) transistor outputs
Output Voltage	24V DC
Output Current	0.5 A per channel
Total Output Current	4 A maximum
Short Circuit Protection	Yes (auto-reset)
Input Delay	5 ms typical
Output Delay	1 ms typical
Bus Type	Genius LAN
Baud Rate	153.6 kbaud
Power Supply	24V DC external
Current Consumption	250 mA (logic) + load
Number of Components	1 housing, 1 PCB, 28 optocouplers, 28 LEDs
Dimensions (L x W x H)	Approx. 22 cm x 13 cm x 6 cm
Weight	Approx. 0.8 kg
Energy Storage	None (no battery or capacitor)
Operating Temperature	0°C to 55°C
Protection Rating	IP20
Mounting	4 x screw holes (M5)

Detailed Technical Analysis

This I/O block combines 16 inputs and 12 outputs in one housing. It reads sensor signals and controls actuators without separate modules. The unit connects to the Genius LAN for remote I/O applications. You can place it up to 7,500 feet from the main controller.

Now let us examine its input characteristics. Each input channel draws only 7 mA at 24V DC. A logical “1” signal requires between 15 and 30 volts DC. The GE IC660BBD120 filters inputs with a 5-millisecond delay. This filtering prevents false triggering from electrical noise.

The output channels use transistors with short circuit protection. Each output handles 0.5 amps for driving solenoids and relays. The GE IC660BBD120 limits total output current to 4 amps. The unit contains no batteries or capacitors for energy storage. Twenty-eight LEDs show the status of every I/O point.

Installation and Wiring Guidelines

You mount this block using four M5 screws on a panel. Connect the 24V DC power supply to the power terminals. The GE IC660BBD120 requires a separate field power source. Use shielded cable for the Genius bus connection.

Terminate the bus cable with 150-ohm resistors at both ends. Wire inputs to the screw terminals using twisted-pair cable. Connect output loads between the output terminal and 24V common. The GE IC660BBD120 automatically configures its bus address via switches.

Practical Applications

Engineers use this I/O block for distributed control near machinery. For example, place it on a conveyor system to read photo-eyes. The GE IC660BBD120 also controls solenoid valves on a packaging line. Its mixed I/O types reduce the number of required modules.

Summary

To conclude, this I/O block provides 16 inputs and 12 outputs in one unit. It weighs 0.8 kilograms and requires a 24V DC supply. Choose GE IC660BBD120 for reliable distributed I/O in Genius systems.