Yokogawa SB401-50 ESB Bus Interface Slave Module Standard Type
Introduction:
ESB Bus Interface Slave Module for connecting node units to FCU. Standard type with basic configuration. 8 I/O module slots included.
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Product Overview
Module Function and Purpose
The Yokogawa SB401-50 is an ESB Bus Interface Slave Module for distributed control systems. This module connects an ESB Bus Node Unit to the Field Control Unit (FCU). Therefore, it enables communication between field devices and the central controller. The SB401-50 includes space for up to 8 I/O modules. Consequently, this module serves as a complete node interface solution.
Model Breakdown Explanation
The model number SB401-50 reveals specific configuration details. The "5" indicates the standard type with no explosion protection. The "0" specifies the basic type configuration. Therefore, this module suits general purpose industrial environments without hazardous area requirements. The suffix codes provide flexibility for different power supply options as well.
System Architecture and Compatibility
When connecting an ESB Bus Node Unit to the FCU, the ESB Bus Coupler Module (EC401 or EC402) must be installed in the FCU. Specifically, EC401 or EC402 must occupy slot 7 and slot 8. For single configuration, one coupler installs in slot 7 while slot 8 remains empty. Consequently, the SB401-50 works seamlessly with compatible FCU models including A2FV50□, A2FV70□, AFV30□, and AFV40□.
Technical Specifications
General Specifications
Manufacturer: Yokogawa
Part Number: SB401-50
Model: ESB Bus Interface Slave Module
Product Type: ESB Bus Interface Slave Module
Condition: New & Original in Factory Packing
Factory Warranty: 12 Months
Suffix Code Breakdown
| Suffix Code | Option | Description |
|---|---|---|
| 5 | Explosion Protection | Standard type with no explosion protection |
| 0 | Type | Basic type |
I/O Capacity
I/O Module Slots: 8 modules
Included Weight: Approx. 10 kg (including 8 I/O modules)
Power Supply Options
The Yokogawa SB401-50 supports multiple power supply configurations.
| Supply Type | Voltage | Frequency | Power Consumption |
|---|---|---|---|
| AC Option 1 | 100-120 V AC | 50/60 Hz | 200 VA, 120 W |
| AC Option 2 | 220-240 V AC | 50/60 Hz | 230 VA, 120 W |
| DC Option | 24 V DC | N/A | 5.5 A |
Compatible FCU Models
A2FV50□
A2FV70□
AFV30□
AFV40□
Compatible ESB Bus Coupler Modules
EC401: For FCU slot 7 or 8
EC402: For FCU slot 7 or 8
Installation Guide
Follow these steps to install the Yokogawa SB401-50 correctly.
Power Down System: First, disconnect power from the Field Control Unit completely.
Mount Node Unit: Next, secure the SB401-50 in its designated location.
Install I/O Modules: Then, populate the 8 slots with compatible I/O modules.
Connect ESB Bus: After that, connect the ESB Bus cable between the FCU and the SB401-50.
Install Coupler Modules: Meanwhile, ensure EC401 or EC402 occupies slot 7 and slot 8 in the FCU.
Apply Power: Finally, connect the appropriate power supply (AC or DC) and verify operation.
For single configuration, note that slot 8 must remain empty. Therefore, install only one coupler module in slot 7. In addition, verify FCU compatibility before installation. Consequently, proper installation ensures reliable ESB Bus communication between the node and controller.
Package List
The package includes the following physical items.
Yokogawa SB401-50 ESB Bus Interface Slave Module (1 piece)
Mounting hardware for node unit installation
Product label with part number and suffix codes
Factory packing with original documentation
*Note: I/O modules are not included but can be installed into the 8 slots. ESB Bus cables are sold separately. Power supply is not included.*
Frequently Asked Questions (FAQ)
1. How many I/O modules does the SB401-50 accommodate?
The Yokogawa SB401-50 accommodates up to 8 I/O modules. Therefore, a single node unit can host a significant number of field connections. The total weight including 8 modules is approximately 10 kg. Consequently, plan your I/O allocation within this capacity.
2. What power supply options are available for the SB401-50?
The Yokogawa SB401-50 offers three power supply configurations. AC options include 100-120 V AC or 220-240 V AC at 50/60 Hz. A 24 V DC option is also available. Therefore, select the suffix code that matches your facility power. Consequently, the module adapts to various industrial power standards.
3. Which FCU models are compatible with the SB401-50?
The Yokogawa SB401-50 works with A2FV50□, A2FV70□, AFV30□, and AFV40□ Field Control Units. Therefore, compatibility spans most recent Yokogawa FCU models. Verify your specific FCU revision before ordering. Consequently, the module integrates seamlessly into existing Yokogawa systems.
4. Where must the EC401 or EC402 coupler modules be installed?
EC401 or EC402 must be installed in slot 7 and slot 8 of the FCU. For single configuration, however, one coupler installs in slot 7 while slot 8 remains empty. Therefore, follow this slot assignment strictly for proper operation. Consequently, incorrect slot placement will prevent ESB Bus communication.
5. What does the suffix code "5" mean on the SB401-50?
The suffix code "5" on Yokogawa SB401-50 indicates standard type with no explosion protection. Therefore, this module suits general purpose industrial environments only. For hazardous area installations, select an explosion-protected version instead. Consequently, verify your site classification before ordering this model.
6. What is the power consumption of the SB401-50 with AC supply?
For 100-120 V AC supply, the Yokogawa SB401-50 consumes 200 VA and 120 W. For 220-240 V AC supply, consumption is 230 VA and 120 W. Therefore, power consumption varies slightly by voltage while wattage remains constant. Consequently, size your power distribution accordingly.
7. What is the weight of the SB401-50 including I/O modules?
The Yokogawa SB401-50 weighs approximately 10 kg when fully populated with 8 I/O modules. Therefore, the node unit requires adequate mechanical support. The module alone weighs less before adding I/O cards. Consequently, consider this weight when selecting mounting locations.
Related Accessories
Enhance your ESB Bus system with these compatible parts.
ESB Bus Coupler Module: Yokogawa EC401 or EC402 for FCU installation
Field Control Unit: Yokogawa A2FV50□, A2FV70□, AFV30□, or AFV40□
I/O Modules: Yokogawa AAI141, AAI143, or other compatible analog/digital modules
ESB Bus Cable: Yokogawa specified cable for node-to-FCU connection
Power Supply Unit: Yokogawa PSU for 24 V DC operation
Always use genuine Yokogawa components with the SB401-50. Therefore, third-party I/O modules may cause communication errors or incompatibility. In addition, verify coupler module placement in slots 7 and 8. Consequently, using authentic parts ensures optimal system performance and reliability.