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The ABB TA924F Dummy Coupler Module is a control system accessory designed for ABB Freelance distributed control systems, especially for the AC900F controller platform. Its main purpose is to safely cover unused coupler bus slots within the controller rack, ensuring proper protection of internal connectors and maintaining system integrity.

Although it does not contain active electronics, the TA924F plays an important structural role in industrial control cabinets. By closing open module positions, it helps prevent dust ingress, accidental contact, and environmental contamination that could affect nearby modules or bus connectors.

The module features a compact housing and quick installation design, allowing engineers to maintain a clean and organized controller configuration. In large automation installations where system reliability is critical, accessories like the TA924F contribute to maintaining stable long-term operation.

Technical Specifications

Parameter	Specification
Model	TA924F
Article Number	3BDH001031R0001
Manufacturer	ABB
Module Type	Dummy Coupler / Control System Accessory
Function	Covers unused coupler bus slots
Compatible Controller	ABB AC900F (Freelance DCS)
Installation	Coupler bus slot mounting
Operating Temperature	−20°C to +70°C
Storage Temperature	−40°C to +85°C
Protection	Industrial cabinet installation
Dimensions (L × W × H)	85 × 28 × 152 mm
Weight	0.15 kg

The TA924F is an empty housing module designed to protect unused coupler bus interfaces in ABB Freelance controllers.

Recommended Related Models

Model	Description
TA724F	Dummy Coupler Module for AC700F Controllers
TA951F	Battery Module for Freelance Controllers
PM902F	Freelance CPU Controller
CM772F	PROFIBUS Communication Module
TB711F	Terminal Base Module

These modules are often used together in ABB Freelance DCS installations to build flexible and maintainable control architectures.

Popular ABB Models

Model	Module Type
PM590-ETH	PLC CPU Controller
CI840A	Communication Interface Module
AI830A	Analog Input Module
SB822	Redundant Power Supply Module
PP865A	Industrial Operator Panel

These ABB automation components are widely deployed in large-scale process control systems and industrial automation projects.

Applications

The ABB TA924F Dummy Coupler Module is typically used in industrial automation cabinets where unused controller slots must be safely protected.

Typical application scenarios include:

ABB Freelance distributed control systems
Process automation facilities
Power generation plants
Chemical and petrochemical processing
Water treatment and environmental control systems
Industrial manufacturing automation
Energy and utility control systems

By sealing unused coupler bus slots, the TA924F helps maintain system reliability and protects internal controller interfaces.

Advantages

Protection for Unused Slots
Prevents dust, debris, and accidental contact with coupler bus connectors.

Improved Cabinet Organization
Keeps control panels structured and prevents exposed bus interfaces.

Quick Installation
Designed for fast insertion into unused coupler positions without special tools.

Industrial-Grade Construction
Built for long-term use inside industrial automation cabinets.

Compact and Lightweight
Minimal size and weight allow easy integration into controller racks.

Supports System Reliability
Protecting unused interfaces contributes to long-term system stability.

Technical FAQs

1. What is the ABB TA924F module used for?
It is a dummy coupler module used to cover unused coupler bus slots in ABB AC900F controllers.

2. Does the TA924F contain electronic components?
No, it is an empty protective housing without active electronics.

3. Which systems use the TA924F?
It is designed for ABB Freelance control systems, especially the AC900F controller.

4. Why is a dummy coupler module important?
It prevents dust, protects connectors, and improves cabinet safety.

5. What is the weight of the TA924F module?
The module weighs approximately 0.15 kg.

6. What are the module dimensions?
Its dimensions are 85 × 28 × 152 mm.

7. What is the operating temperature range?
The module operates between −20°C and +70°C.

8. Is installation complicated?
No, it simply inserts into the unused coupler slot.

9. Does it require power supply?
No, since it is a passive accessory module.

10. What benefit does it provide in automation systems?
It protects controller bus connectors and helps maintain the reliability of the control cabinet environment.

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