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Emerson 480V user manual Conditions for Parallel System, Cabinet Installation, Preliminary Checks

Models: 480V

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4.3.1Conditions for Parallel System

•Each UPS module must have the same bypass source.

•The outputs of all UPS modules are connected altogether.

•The main inputs can be from different sources, but the phase rotation sequence of main inputs, bypass inputs and outputs must be correct and the same.

•The parallel logic cable and load sharing cable must be connected in a ring correctly (see Figure 17).

NOTE

When paralleling UPS's with different power ratings, the power rating of the largest UPS can be no more than four times the power rating of the smallest UPS

4.3.2Cabinet Installation

Parallel system composed of two or more UPS modules using parallel cabinet

The UPS modules that will form the parallel system should be placed side-by-side. Each battery cabi- net is placed next to its corresponding UPS module.

The parallel cabinet should be placed in the middle of the system.

4.3.3Preliminary Checks

Each UPS module should have the same firmware and the same hardware version. Refer to the instructions in 4.3.1 - Conditions for Parallel System.

4.3.4Power Cables

Wiring of power cables is similar to that of a single module system (See 2.1 - Power Cabling). The bypass sources of all modules should be the same, and the outputs should be connected altogether cor- rectly.

Power cables are field-supplied. Power cables to the UPS’s of the paralleling cabinet must be routed through either the top or bottom entry access of the UPS.

NOTE

The system input and/or output circuit breaker is to be field-supplied. See Table 8 for current rating.

NOTE

The length and specifications of power cables including the bypass input cables and UPS output cables should be the same, thus the load can be shared evenly in bypass mode.

4.3.5Parallel Control Cables Parallel System Control Cables

Make the connections listed below on the parallel logic board (M3) inside the Liebert NX. (See Figure 23 for the location of the parallel logic board):

Shielded and double-insulated control cables, available in lengths of up to 100 feet (30m), must be interconnected in a ring configuration between UPS modules as shown below. The ring configuration ensures high reliability of the control (refer to Figure 17).

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Emerson 480V user manual Conditions for Parallel System, Cabinet Installation, Preliminary Checks, Power Cables
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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.