Troubleshooting Guide (Continued)

Problem

Cause

Solution

 

 

 

Fault and Bypass

UPS shutdown due to a

Your UPS has received a

indicator LEDs

command from the

signal or command from the

and diagnostic

communications port(s).

attached computer. If this

LED C and E are

 

was inadvertent, ensure the

illuminated.

 

communication cable used

 

 

is correct for your system.

 

 

For assistance, contact your

 

 

local dealer, Liebert

 

 

representative or the Liebert

 

 

Worldwide Support Group.

 

 

 

AC LED is

UPS detected a line-to-

Contact a qualified

flashing.

neutral reversal or a loss of

electrician to verify site

 

proper grounding;

wiring.

 

continuous horn and UPS

 

 

will not start.This is active

 

 

only when power is first

 

 

applied to the input. Once

 

 

the UPS is running, the AC

 

 

LED will not start flashing,

 

 

even if the input wiring is

 

 

changed.

 

 

 

 

Battery LED is

Battery source is not

Check battery connections,

flashing.

available; continuous horn.

completely power down and

 

 

restart UPS.

 

 

NOTE: If the battery circuit

 

 

opens while the UPS is

 

 

running, it will be detected

 

 

when the next battery test is

 

 

performed.

 

 

 

Bypass LED is

Bypass voltage is present,

The AC input powers the

flashing.

but is disabled for use

PFC input and serves as the

 

because the voltage or

bypass source. If the AC is

 

frequency is outside

present but the voltage or

 

acceptable limits.

frequency exceeds the

 

 

acceptable range for safe

 

 

operation with a load, the

 

 

bypass will be disabled and

 

 

this LED will flash, indicating

 

 

that the bypass is

 

 

unavailable.

 

 

 

28

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Liebert 208V, 2700VA user manual That the bypass is
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208V, 2700VA specifications

The Liebert 2700VA, 208V is a robust and reliable uninterruptible power supply (UPS) designed to protect critical electronic equipment from power disturbances. This UPS is ideal for various applications, including data centers, telecommunications, and manufacturing environments, ensuring that business continuity is maintained even in the face of power outages or fluctuations.

One of the primary features of the Liebert 2700VA is its high power rating of 2700VA, which makes it suitable for supporting a range of devices, from servers to sensitive electronic equipment. With a nominal output voltage of 208V, it meets the electrical requirements of many industrial and commercial systems, making it an adaptable choice for enterprises with diverse power needs.

The Liebert 2700VA is equipped with advanced technologies that enhance its performance and efficiency. The unit employs double-conversion online technology, which ensures that the output power is consistently clean and stable. This technology continuously converts incoming AC power into DC and then back to AC, providing a seamless transition to battery power during an outage, eliminating any momentary interruptions.

In terms of characteristics, the Liebert 2700VA features an LCD display that provides real-time information on the UPS’s status, including input/output voltage, load level, and battery condition. This user-friendly interface allows for easy monitoring and management, making it convenient for IT professionals to maintain optimal operations.

Another significant aspect of the Liebert 2700VA is its advanced battery management system. This feature optimizes battery performance and life by regulating charging cycles and ensuring that batteries are in peak condition when needed. Furthermore, the UPS offers multiple communication options, including USB and serial connectivity, enabling integration with monitoring software and allowing for remote management capabilities.

The Liebert 2700VA also comes equipped with a range of protection features, including overload protection, short-circuit protection, and surge suppression. These attributes safeguard connected equipment from electrical anomalies, providing peace of mind in environments where downtime can be costly.

In conclusion, the Liebert 2700VA, 208V is a powerful UPS solution that combines advanced technology with essential features, making it a crucial asset for businesses seeking reliable power protection. Its robust capabilities, user-friendly interface, and extensive protection measures position it as an ideal choice for ensuring operational continuity in various critical applications.
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