Excellent PLC
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| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Description
The ABB TB852 is an RCU Link Terminator Plug used in AC 800M controller systems. It serves as a termination point on the RCU Link for systems configured with a single processor unit. It ensures proper signal integrity and system performance by preventing signal reflection in the RCU link.
Technical Specifications
| Parameter | Description |
|---|---|
| Product Code | TB852 |
| Part Number | 3BSC950263R1 |
| Function | RCU Link Terminator (Plug type) |
| System Compatibility | AC 800M Controller |
| Mounting | Plug-in (RCU Link connector) |
| Configuration Support | Single CPU configuration |
| Dimensions (W x H x D) | 57 x 20 x 23 mm |
| Weight | 0.02 kg |
Product Applications
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Termination of the RCU Link in single CPU configurations
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Ensures correct signal levels in redundancy control connections
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Used during maintenance or initial commissioning when only one CPU is active
Product Advantages
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Simple plug-and-use installation
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Essential for signal integrity in single configurations
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Compact and lightweight
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Designed specifically for ABB AC 800M systems
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Enhances system reliability by preventing data transmission faults
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No external power required
FAQs
Q1: What is the main function of the TB852 plug?
A1: It terminates the RCU Link in single-CPU configurations to maintain signal integrity.
Q2: Can TB852 be used in redundant CPU configurations?
A2: No, it’s only used in single CPU configurations. Redundant systems use RCU link cables instead.
Q3: Is TB852 required for temporary single CPU operation?
A3: Yes, it must be installed if only one processor is used temporarily.
Q4: Does TB852 require configuration?
A4: No, it is a passive hardware terminator and does not require any setup.
Q5: Can I use a third-party terminator instead of TB852?
A5: No, only ABB-specified components ensure proper system operation.
Q6: What happens if TB852 is not installed in a single CPU setup?
A6: Signal reflection and communication errors may occur in the RCU Link.
Q7: Is TB852 hot-swappable?
A7: No, install only when the controller system is powered off.
Q8: Is TB852 reusable?
A8: Yes, it can be removed and reinstalled when needed.
Q9: How do I identify the TB852 plug?
A9: The plug is labeled TB852 with part number 3BSC950263R1.
Q10: Where is TB852 installed?
A10: It is inserted into the RCU Link connector of the primary processor.
Related or Same-Series ABB Models
| Model | Description | Dimensions (mm) | Weight |
|---|---|---|---|
| TB850 | CEX-Bus Terminator (Male) | 57 x 20 x 23 | 0.02 kg |
| TB851 | CEX-Bus Terminator (Female) | 57 x 20 x 23 | 0.02 kg |
| TB807 | ModuleBus Terminator Plug | 57 x 20 x 23 | 0.02 kg |
| TB853 | RCU Control Link Terminator Plug | 57 x 20 x 23 | 0.02 kg |
| TK851 | RCU Link Cable | Custom length | N/A |
| TK855 | RCU Data Link Cable | Custom length | N/A |
Popular ABB Models from Same Brand
| Model | Description | Dimensions (mm) | Weight |
|---|---|---|---|
| PM865 | AC 800M HI CPU Module | 186 x 120 x 118 | 0.52 kg |
| PM891 | High-Performance CPU for AC 800M | 186 x 120 x 118 | 0.52 kg |
| CI854A | PROFIBUS DP Interface Module | 120 x 65 x 118 | 0.3 kg |
| CI860 | FOUNDATION Fieldbus HSE Interface | 120 x 65 x 118 | 0.3 kg |
| BC810 | CEX-Bus Interconnection Unit | 70 x 100 x 120 | 0.4 kg |
| SM810 | Safety Module for High Integrity Applications | 120 x 65 x 118 | 0.35 kg |
