GE IC660BBD024 12/24 VDC 32-Circuit Source I/O Block

Technical Specifications
Product Type: Genius Source I/O Block
Compatible System: Genius I/O, Series 90-30 and 90-70 PLCs
Number of Circuits: 32 configurable discrete I/O circuits
Rated Voltage: 12/24 VDC
Operating Voltage Range: 10 to 30 VDC
Input Impedance: 3.3 kΩ
Output Current per Circuit: 0.5 A maximum steady state
Maximum Inrush Current: 4 A for 10 ms, once every 0.5 seconds
Total Block Output Current: 16 A
Output Turn-On Delay: 0.5 ms
Input Processing Time: 1.4 ms plus selectable filter delay of 1 to 100 ms
Power Supply Dropout Time: 4 ms at 12 VDC; 20 ms at 24 VDC
Block-to-Block Isolation: 850 V
Heat Dissipation: 11 W minimum with 8 inputs; 18 W maximum with 32 outputs at 0.5 A
Ripple: 10% maximum
DC Power Required: 150 mA typical; 300 mA maximum
Dimensions (H x W x D): 8.83 in x 3.58 in x 4.7 in (22.43 cm x 9.1 cm x 11.94 cm)
Weight: 4 lbs (1.8 kg)
Operating Temperature: 0°C to +60°C (32°F to +140°F)
Storage Temperature: -40°C to +85°C
Humidity: 5% to 95%, non-condensing
Vibration: 0.2 in displacement at 5-10 Hz; 1G at 10-200 Hz

Key Features
32 Fully Configurable Circuits: Each circuit can be independently set as a standard input, standard output, or output with feedback verification. This mixed configuration capability eliminates the need for separate input and output blocks, reducing hardware costs and system footprint .
Self-Protecting Output Drivers: Circuits configured as outputs include built-in electronic protection. Software safeguards the driver against damage from shorted loads caused by wiring errors while permitting short-duration surge currents necessary for certain load types .
Comprehensive LED Diagnostics: Block-level LEDs indicate “Unit OK” status and “I/O Enabled” condition, confirming proper operation and CPU communication. Individual logic-side LEDs for each of the 32 circuits provide at-a-glance indication of voltage presence on inputs and outputs, dramatically accelerating commissioning and fault identification .
High Noise Immunity and Isolation: 850 V block-to-block isolation protects the control system from ground loops and voltage transients commonly found in heavy industrial environments .
Sourcing Output Topology: Designed specifically to source current, this block directly interfaces with field devices requiring a positive supply from the output point, such as inputs on motor starters, solenoid drivers, and indicator panels .
Advanced Input Filtering: Selectable input filter times from 1 ms to 100 ms allow users to reject contact bounce or electrical noise on field wiring, ensuring clean signal acquisition from mechanical switches and proximity sensors in high-vibration environments .
Compatibility with 2-Wire and 3-Wire Sensors: The block accommodates a wide range of input devices including electronic proximity switches in both 2-wire and 3-wire configurations, increasing design flexibility .

Application Scenarios
Automotive Manufacturing: Controlling pneumatic valves, actuators, and conveyors in assembly lines and stamping plants. Solid-state outputs withstand high cycling rates without wear, replacing mechanical relay banks to significantly increase mean time between failures .
Pharmaceutical Production: Managing ejection solenoids and status indicators on tablet press lines where cleanroom requirements demand silent, spark-free operation. Fast response supports precise timing during high-speed pressing cycles .
Process Control and Power Generation: Interfacing with sensors and actuators in chemical processing, oil refining, and power station balance-of-plant systems including turbine monitoring and pump control .
Water and Wastewater Treatment: Switching pump contactors, controlling valve actuators, and driving alarm horns in municipal pumping stations where optical isolation protects systems from ground loops and humidity-related corrosion .
General Industrial Automation: Providing flexible I/O for robotics, CNC machinery, automated assembly, material handling, conveyor systems, packaging, textile, and printing applications .
Legacy System Retrofits: A preferred choice for upgrading aging control panels in North American and European plants, offering direct drop-in replacement and compatibility with existing Genius Bus networks .