CONTROLS AND INDICATORS

ON/OFF/Alarm Silence Button

This button controls output power to the connected load and has three functions:

• ON

 

• OFF

 

• Alarm Silence

ON/OFF/Alarm Silence

ON When the UPS is off, pressing the main ON/OFF button for more than two seconds will start the UPS, and an audible alarm sounds briefly. The UPS is capable of starting on bat- tery (battery start).

OFF When the UPS is on (in either Normal or Battery mode), pressing the main ON/OFF button for more than

two (2) seconds will shut down the UPS. An audible alarm sounds briefly.

Alarm When a UPS audible alarm is active, pressing and releasing Silence the main ON/OFF button will silence the active audible

alarm, whether mains power is present or not. Once the alarm silence function has been activated, all active audible alarms—except for low battery or overload conditions—will remain silenced until a new alarm condition is detected.

NOTE

Do not hold ON/OFF button down for more than 2 seconds or the UPS will shut down.

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Liebert 500-650 VA user manual ON/OFF/Alarm Silence Button, Controls and Indicators

500-650 VA specifications

The Liebert 500-650 VA is a compact and efficient uninterruptible power supply (UPS) designed to safeguard critical electronic equipment against power inconsistencies. Whether it's protecting sensitive servers in data centers or providing backup power for home office setups, this UPS is engineered to deliver reliable performance.

One of the main features of the Liebert 500-650 VA is its ability to provide seamless power protection. With a high-quality battery management system, the unit ensures that connected devices receive uninterrupted power during outages or fluctuations. This is essential for preventing data loss and maintaining operational continuity in environments where time is crucial.

The UPS is equipped with advanced technologies such as line-interactive topology. This system helps to stabilize voltage variations by automatically adjusting the voltage levels without switching to battery mode. This feature not only extends the life of the UPS batteries but also enhances overall efficiency, making it ideal for environments with frequent power fluctuations.

In terms of characteristics, the Liebert 500-650 VA comes with user-friendly LED indicators that provide real-time information on battery status, load levels, and power conditions. This allows users to quickly assess the operational status of the UPS at a glance. Additionally, it features multiple outlets, providing flexibility for connecting various devices while ensuring they remain protected.

The compact design of the Liebert 500-650 VA makes it easy to install in limited spaces, whether on a desktop or mounted in a rack. Its noise-free operation is another advantage, ensuring that it does not disrupt the working environment, making it suitable for both office and home use.

Furthermore, this UPS includes surge protection capabilities, guarding against voltage spikes and ensuring that connected equipment remains safe from potential damage. The integration of smart battery technology means that users can expect efficient charging cycles and extended battery life.

In summary, the Liebert 500-650 VA stands out as a dependable power protection solution, tailored to meet the needs of users looking for reliability and efficiency. With its advanced features, robust technologies, and compact design, it is an excellent choice for safeguarding vital electronic equipment in any setting.