TA924F ABB Bailey Analog Input Module
Brand：ABB Model number：TA924F
Country of origin: Sweden Product weight：0.55KG
HS code：8517623990
Product Details：
Product Dimensions：
The TA924F is part of the Freelance AC 900F modular control system, which is a key component of ABB’s distributed control system (DCS) for process industries. In a typical AC 900F configuration, CPU modules and communication couplers are mounted onto a backplane or coupler bus. When a system is designed with future expansion in mind or when certain communication slots are not required for a specific project phase, the TA924F is used to occupy those empty spaces. This ensures the internal bus connectors are protected and the overall rack maintains a professional, finished appearance.
Type: Empty module housing / Dummy cover
Compatibility: Specifically designed for the AC 900F controller series
Width: $28 \text{ mm}$
Height: $152 \text{ mm}$
Depth: $85 \text{ mm}$
Net Weight: $0.15 \text{ kg}$
Operating Temperature: $-20^\circ\text{C}$ to $+70^\circ\text{C}$
Storage Temperature: $-40^\circ\text{C}$ to $+85^\circ\text{C}$
Mounting Type: Rail-mounted (via the AC 900F base unit)
Certification: CE marked and RoHS compliant (Directive 2011/65/EU)
Environmental Standards: WEEE Directive 2012/19/EU compliant
Physical Protection: The TA924F effectively shields the delicate internal pins of the coupler bus from dust, debris, and accidental physical damage that could occur in an industrial cabinet.
Airflow Management: By filling empty slots, the housing helps maintain the intended airflow and cooling characteristics within the controller rack, preventing hot spots.
System Uniformity: It provides a clean and uniform look to the control panel, ensuring that the hardware setup looks complete and avoids the "unfinished" appearance of exposed electronics.
Cost-Effective Expansion Planning: It allows engineers to reserve space for future communication modules (such as PROFIBUS or Modbus modules) without leaving the system vulnerable or unsightly in the interim.
High Durability: Built to the same industrial standards as active Freelance modules, it withstands extreme temperature ranges from $-20^\circ\text{C}$ to $+70^\circ\text{C}$.
No Electrical Function: Users must understand that the TA924F is a passive mechanical component. It contains no electronic circuitry and does not provide any communication or processing capabilities.
Proper Installation: Ensure the housing is correctly snapped into the rail or base unit to prevent it from vibrating loose in high-vibration environments.
Slot Compatibility: This module is specifically sized for the coupler bus slots of the AC 900F. It cannot be used in slots intended for standard S800 I/O modules or different controller families like the AC 700F or AC 800M.
Cleaning: If cleaning is required, use a dry, lint-free cloth. Avoid chemical solvents that could degrade the plastic housing or affect the environmental ratings of the surrounding active modules.
The TA924F is found in any industrial environment utilizing the ABB Freelance DCS where the AC 900F controller is the primary control unit.
Expansion Readiness: In large-scale plants where the control system is expected to grow over time, TA924F housings occupy slots reserved for future Ethernet or fieldbus couplers.
Small-Scale Configurations: In simple applications where only the CPU is required without additional communication interfaces, these housings cover the empty bus slots to meet safety and aesthetic standards.
Standardized Cabinet Building: Control cabinet manufacturers use these to standardize the layout of racks across different projects, providing a consistent hardware footprint regardless of the specific module count.
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