The ABB 07KT92 (GJR5250500R0202) is a versatile and compact Central Processing Unit (CPU) belonging to the ABB Advant Controller 31 (AC31) and Procontic CS31 series. Specifically part of the 90 Series, this unit acts as the primary intelligence hub for decentralized automation systems. It is designed to coordinate complex logic, manage high-speed fieldbus communication via the CS31 system bus, and interface with various digital and analog signals to ensure efficient process control in industrial environments.
Product Specifications
Technical Parameters
- Model Identification: 07KT92 / GJR5250500R0202
- Manufacturer: ABB
- System Family: Advant Controller 31 / Procontic CS31
- Supply Voltage: 24 V DC
- Program Memory: 14 K Flash EPROM
- Onboard I/O: 12 Digital Inputs (24V DC), 8 Transistor Outputs (0.5A), 4 Analog Inputs (12-bit), 2 Analog Outputs (12-bit)
- Serial Interfaces: 2x RS-232 (Programmable)
- Network Interface: CS31 System Bus (RS-485)
Physical Datasheet
- Dimensions: 254mm x 102mm x 152mm (10.0″ x 4.0″ x 6.0″)
- Weight: 0.70 kg (1.54 lbs)
- Country of Origin: Sweden / Switzerland
- Mounting: DIN Rail or screw mounting
Application Fields
The 07KT92 is a staple in legacy and modernized industrial installations, including:
- Water & Wastewater Treatment: Controlling pump stations and filtration cycles.
- Manufacturing Automation: Managing conveyor systems and assembly line logic.
- Building Management Systems (BMS): Overseeing HVAC and lighting control via decentralized I/O.
- Small to Mid-Sized Machinery: Providing a compact “all-in-one” control solution for specialized tool machines.
Product Usage Instructions
- Mounting: Install the unit on a standard 35mm DIN rail. Ensure vertical mounting to facilitate natural convection cooling.
- Power Connection: Connect a stabilized 24V DC power source to the supply terminals. Double-check polarity before energizing to prevent damage to the internal logic circuits.
- Fieldbus Configuration: Use the CS31 system bus terminals to connect remote I/O modules. Ensure the bus is terminated correctly with a resistor if the 07KT92 is the final node in the line.
- Programming: Load the application program using ABB’s 907 PC 331 or 338 programming software via the RS-232 serial port.
- Environmental Care: Avoid installing the CPU in areas with high vibration or direct exposure to corrosive gases. Periodically verify that all terminal screws remain tight.
Q&A – Frequently Asked Questions
Q: Can I use the 07KT92 in a safety-critical application? A: This specific model is intended for general automation. For safety-related functions, ABB recommends the Advant Controller 31-S (Safety) series which adheres to specific SIL standards.
Q: What should I do if the “ERR” LED is illuminated? A: An illuminated error LED typically indicates a configuration mismatch or a bus fault. Check your CS31 bus addresses and ensure all connected modules are powered.
Q: Where can I find pricing and availability for the GJR5250500R0202? A: You can request a quote and check current stock levels through our ABB 07KT92 GJR5250500R0202 Technical Support & Sales.
Product Related News
As of 2026, the ABB 07KT92 continues to be a high-demand “bridge” component in the industrial spare parts market. While ABB has introduced newer AC500 series controllers, the 07KT92 remains essential for the massive installed base of Procontic and AC31 systems worldwide. Industry reports indicate that “Retrofit-Ready” strategies are keeping these 90 Series CPUs relevant, as they allow plants to maintain operations without the prohibitive cost of a complete system rewrite. Maintenance professionals are increasingly utilizing specialized diagnostic tools to extend the lifespan of these units, ensuring that older manufacturing facilities can meet modern productivity quotas without compromising on system stability.
