Theory of Operation

6.Retransfer Inhibited

A retransfer from the bypass source to the UPS system shall be inhibited if any of the following conditions exist:

a.Manual (and Automatic) Retransfer Inhibitions:

1.UPS system-to-bypass voltage difference (ΔV) exceeds a predetermined percentage (normally 5%).

2.System circuit breaker (UPS output or SBB) is inoperative.

3.OK to Transfer signal from the control logic is not present.

4.Not enough UPS modules are ON LINE to supply the connected critical load.

b.Automatic Retransfer Inhibitions (in addition to those above):

1.The load transfer to bypass was not caused by a system overload.

2.Excessive cyclical overloads within a one-hour period.

3.Retransfer conditions are not satisfied within 5 minutes of the initial transfer.

2.2.6Redundant Mode

The typical multi-module UPS system is configured with a back-up (redundant) UPS module, con- nected in parallel to share the critical load with the other module(s). This parallel redundant system includes one more module than is required to supply the full critical load.

A parallel redundant system will always be in the Redundant Mode if all modules are ON LINE. In addition, if the critical load is reduced so that not all ON LINE modules are required, the UPS system can also operate in the Redundant Mode with one or more modules OFF LINE. The critical load will remain on the UPS system—even if one or more of the modules is taken OFF LINE for maintenance or because of an internal fault—as long as the remaining ON LINE modules can carry the full con- nected system load.

The system control logic monitors the connected critical load and the number of UPS modules ON LINE. If the UPS system is operating in the Redundant Mode, the REDUNDANT status message will be displayed at the System Control Cabinet (SCC). If the UPS system is operating in the Non-Redun- dant Mode (redundant module is OFF LINE or was not included in the system configuration), the NON-REDUNDANT status message is displayed at the SCC. In the Non-Redundant Mode, the criti- cal load will be transferred to bypass if any UPS module goes OFF LINE and the remaining ON LINE module(s) cannot carry the connected load without being overloaded.

The system control logic, located in the SCC, automatically adjusts the allowable overload limits based on the connected load and the number of modules ON LINE.

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Emerson Series 610 manual Redundant Mode, Retransfer Inhibited
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Series 610 specifications

The Emerson Series 610 is a cutting-edge solution for precise process measurement and control, designed specifically for industries where accuracy and reliability are paramount. This advanced instrument, often utilized in oil and gas, chemical processing, and water treatment sectors, combines innovative technology with robust features to meet the demanding requirements of modern industrial applications.

One of the standout features of the Series 610 is its exceptional measurement accuracy. The device employs advanced sensor technology that enables precise determination of variables such as pressure, temperature, and flow. This accuracy translates into improved process efficiency and enhanced product quality. With a wide range of measurement capabilities, the Series 610 can handle varying process conditions and fluid types, making it versatile across different applications.

The heart of the Emerson Series 610 lies in its intelligent diagnostics and predictive maintenance functionalities. This built-in technology allows for real-time monitoring of the device's operational status, providing valuable insights into performance trends. By detecting anomalies early, users can take proactive measures to prevent potential failures, thereby reducing downtime and maintenance costs.

Moreover, the Series 610 is designed with user-friendly features. Its intuitive interface and easy-to-navigate menus facilitate quick setup and configuration, enabling operators to be productive from the outset. The device also supports various communication protocols, including HART and FOUNDATION fieldbus, ensuring seamless integration into existing control systems and enhancing overall automation capabilities.

Another notable characteristic of the Emerson Series 610 is its robust construction. Designed to withstand harsh environmental conditions, it is built with durable materials that offer high resistance to corrosion and physical damage. This durability ensures longevity and reliability, even in the most challenging industrial environments.

In summary, the Emerson Series 610 represents a significant advancement in process measurement technology. With its exceptional accuracy, intelligent diagnostics, user-friendly design, and robust construction, it is an ideal choice for industries seeking to enhance their operational efficiency and reliability. Its ability to seamlessly integrate into existing systems further solidifies its position as a leading solution in the field of industrial measurement and control. As industries continue to evolve, the Series 610 is poised to meet the challenges of the future with confidence and precision.
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