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Emerson 480V Commissioning a Parallel System, Shutdown Procedure-Complete UPS and Load Shutdown

Models: 480V

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Operating Instructions

9.8.3Shutdown Procedure—Complete UPS and Load Shutdown

This procedure must be followed to completely power down the UPS and the load. All power switches, isolators and circuit breakers will be opened and power will be removed from the load.

In multi-module systems, perform each step of the procedure in every UPS module before proceeding to the next step.

! CAUTION

This procedure will shut off power to the load.

NOTE

Before beginning this procedure, shut down the connected load to prevent the possibility of damage.

1.Press the EPO (Emergency Power Off) button at the UPS front panel only. This will disable Rectifier, Inverter, Static Switch and Battery operation. The load will be de-energized.

! CAUTION

Except in an emergency situation, do not press any remote EPO button

2.Open the UPS door to gain access to the main circuit breakers.

3.Open the Rectifier input circuit breaker CB1.

4.Open external battery circuit breaker. This breaker is inside the battery cabinet or is otherwise adjacent to the battery racks.

5.Open Output circuit breaker CB5.

6.Open bypass input circuit breaker CB2.

7.Ensure maintenance bypass circuit breaker CB3 is open.

8.All mimic panel LED indications and messages will extinguish as the mains-driven, internal power supplies decay.

9.To completely isolate the UPS from the AC supplies, the main external power input isolator (both isolators, where dual supplies are provided for rectifier and bypass) and external output isolator must be opened and tagged with warning labels accordingly.

9.9Commissioning a Parallel System

! CAUTION

The operations described in this section must be performed by authorized electricians or qualified technical personnel. If you have any difficulty, call 1-800-LIEBERT for assistance.

Check the input and output wiring of each UPS module. Ensure that the phase rotation sequence of the main inputs and the bypass inputs and outputs of each UPS module are the same. Ensure that the parallel cables are connected firmly.

It is assumed that the installation is complete, the system has been commissioned by authorized per- sonnel and the external power isolators are closed. Disconnect the load before startup.

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Emerson 480V user manual Commissioning a Parallel System, Shutdown Procedure-Complete UPS and Load Shutdown
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480V specifications

The Emerson 480V power systems play a critical role in modern industrial applications, providing reliable and efficient power distribution. These systems are designed for facilities that require robust performance and operational efficiency while adhering to safety regulations. With voltage ratings at 480V, they cater primarily to industries such as manufacturing, data centers, and commercial buildings.

One of the main features of the Emerson 480V systems is their scalability. These systems can be easily adapted and expanded as operational demands grow, thereby reducing initial investment costs and providing a flexible solution for evolving business needs. This ability to scale is crucial in a fast-paced environment where demands can change rapidly.

The Emerson 480V systems also incorporate advanced technologies for improved performance and safety. One key technology is the use of smart grid solutions. This enables real-time monitoring, diagnostics, and control, allowing facility managers to optimize energy consumption and reduce operational costs. Furthermore, these systems often include integrated protection devices that enhance safety measures by minimizing the risk of electrical faults, overloads, or short circuits.

Energy efficiency is another characteristic that distinguishes Emerson 480V systems from traditional alternatives. With advanced power management features, these systems effectively reduce energy waste and lower electricity bills. Emerson’s commitment to sustainability is evident in its designs, which aim to minimize environmental impact through energy-efficient technologies.

The build quality of Emerson 480V systems is also noteworthy. They are designed to withstand harsh industrial environments and are constructed with high-grade materials that promote longevity and reliability. The modular design allows for easy maintenance and repair, which further extends the lifespan of the system.

Additionally, Emerson 480V systems are equipped with user-friendly interfaces that facilitate ease of operation. This ensures that operators can efficiently manage and control power distribution without extensive training. The combination of performance, scalability, safety features, and user-centric design makes Emerson 480V systems an ideal choice for businesses looking to enhance their electrical infrastructure.

In summary, Emerson 480V power systems are a leading solution for industrial power distribution, characterized by their scalability, smart technology integration, energy efficiency, robust build quality, and user-friendly operation. These attributes make them a valuable investment for any organization aiming to improve its electrical management and operational performance.