Battery Protection, Multi-Module System Procedures

Operating Instructions

9.7Battery Protection

9.7.1Battery Undervoltage Pre-Warning

Before the end of discharge, the Liebert NX displays a Low Battery pre-warning. After this pre-warn- ing, the battery has the capacity for 5 minutes discharging with full load (default time). The Liebert NX can be user-configured to display this warning from 3 to 60 minutes before end-of-discharge.

9.7.2Battery End-of-Discharge (EOD) Protection

If the battery voltage is lower than the end-of-discharge voltage, the battery converter will be shut down.

9.8Multi-Module System Procedures

9.8.1Isolating One Module in a Multi-Module System

1.Turn Off the inverter

2.Open External Output CB4 in Parallel Cabinet (see Figure 54).

The UPS enters Isolation Status automatically, parallel signaling and communication become masked and output becomes inhibited.

3.Power Off the unit for maintenance.

4.Power On the unit.

5.Unit enters Test Mode by configuration software setting.

6.Diagnosis or testing.

7.The UPS exits Test Mode by configuration software setting. Output becomes inhibited because of Isolation Status.

8.Return all switches to the Normal position.

9.Close External Output CB4 in Parallel Cabinet (see Figure 54).

The UPS exits Isolation Status automatically, parallel signaling and communication recovers, output becomes enabled but interlocking works now.

10.Turn On inverter and join the parallel system.

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.