The GE IC660BBA025 is a high-performance, stand-alone analog output block from the Genius I/O series, originally manufactured by GE Fanuc (now Emerson). This 24/48V DC powered module provides six independent current-source output channels designed to interface with process control equipment like valves and actuators. Known for its “rackless” design and intelligent diagnostic capabilities, the IC660BBA025 eliminates the need for manual calibration while providing high-accuracy signal delivery in demanding industrial environments.
Product Specifications
Technical Parameters
- Manufacturer: GE Fanuc / Emerson
- Series: Genius I/O (Compatible with Series 90-30, 90-70, RX3i, and RX7i)
- Module Type: Analog Current Source Output
- Number of Points: 6 Channels
- Output Range: 4 to 20 mA (Default); 0 to 24 mA (Extended)
- Voltage Output: Channels 5 and 6 can be configured for voltage (0-5V or 0-20V)
- Resolution: 6 µA (Dual 12-bit D/A converters)
- Accuracy: 0.15% of full scale at 25°C
- Power Consumption: 12 Watts maximum
- Update Frequency: 25 ms
Physical Datasheet
- Dimensions: 224mm x 85mm x 99mm (8.83″ x 3.34″ x 3.91″)
- Weight: 1.8 kg (approx. 4.0 lbs)
- Country of Origin: USA
- Mounting: Flat surface or DIN rail (Requires protective enclosure)
- Isolation: 1500V (Block-to-block for 1 minute)
- Terminals: Supports up to AWG #14 wire
Application Fields
The IC660BBA025 is utilized in specialized process control roles:
- Actuator Modulation: Controlling the precise position of pneumatic and hydraulic valves.
- Variable Speed Drives: Providing analog speed references to VFDs.
- Dosing Systems: Regulating chemical injection pumps in water treatment.
- Redundant Systems: Using its dedicated Bus Switching Module (BSM) control for high-availability CPU redundancy.
Product Usage Instructions
- Enclosure Requirements: This is “open equipment.” It must be installed in a clean, dry NEMA-rated enclosure to protect against contaminants.
- Configuration: Use the GE Hand-held Monitor (IC660HHM501) version 4.0 or later. You must assign a unique Serial Bus Address (Device Number) and configure circuit scaling to match your field devices.
- Offline Setup: If configuring the block without the bus, you must ground the block and install a 75-ohm resistor across Serial 1 and 2 terminals.
- Wiring: The block provides loop power for 4-20mA signals; no external loop power supply is generally required. Ensure shielded twisted-pair cabling is used for all analog outputs.
- Diagnostics: Monitor the “Unit OK” and “I/O Enabled” LEDs. Faults such as overrange, underrange, or feedback errors are reported via the Genius bus to the CPU.
Q&A – Frequently Asked Questions
Q: Do I need to calibrate the IC660BBA025 regularly? A: No. The module is factory-calibrated and designed to maintain its 0.15% accuracy without manual adjustment.
Q: Can I use this block with a modern PACSystems RX3i? A: Yes, via a Genius Bus Controller (GBC) module like the IC694BEM331.
Q: What is the maximum load resistance for the current outputs? A: The block can drive an output load from 0 to 850 Ohms in current applications.
Q: Where can I check stock for a new or refurbished IC660BBA025? A: For formal quotes and lead times, please visit our GE IC660BBA025 Genius Block Inquiry Center.
Product Related News
In 2026, the GE Genius I/O platform remains a critical legacy technology for global infrastructure. While Emerson has introduced more modern I/O families, the “Genius Evolution” strategy allows plants to retain their robust IC660BBA025 blocks while upgrading their central processors to RX3i or cloud-connected controllers. This sustainability-focused approach has made refurbished Genius blocks highly sought after in the energy and water sectors. Maintenance managers are increasingly utilizing the module’s advanced feedback diagnostics to feed “Health Scores” into plant-wide predictive maintenance dashboards, significantly reducing the risk of valve failure in critical process loops.
