Date and Time, Control Circuit Board | Liebert 3000 instruction

Operation with Advanced Microprocessor Controls

2.5.4Change Passwords

The display prompts you to enter a three digit password when making changes. The system includes two (2) passwords, one for setpoints and one for setup. The system allows the passwords to be changed by first entering the present password, factory set as “123” for setpoints and “321” for setup. The pass- word function provides system security, so only personnel authorized to make changes should know the passwords. If unauthorized changes are being made, the passwords may be compromised and new ones should be selected. The password function can be disabled by setting DIP switch 8 to OFF.

2.6Date and Time

The current date and time is available through the display. This feature allows the date and time to be read or changed and is accessed by selecting “DATE AND TIME” from the Main Menu.

The “DATE AND TIME” is used only by the control for recording the Alarm History.

NOTE

The clock uses the 24 hour system (For example: 17:00 would be 5:00 PM). The date and time are backed up by battery.

2.7Status Display

The Status Display selected from the Main Menu is the same Status Display that is normally on the screen. While the Main Menu is displayed, you can press the MENU/ESC key to return to the Status Display.

NOTE

The system automatically returns to the Status Display in five minutes if no control keys are pressed.

2.8Control Circuit Board

The control circuit board is located inside the unit behind the LCD display and control key panel. Open the front panel for access to the board.

The control board includes an adjustment for LCD display contrast, nonvolatile memory, DIP switches (which should not require customer changes), control output LEDs and jumpers for board configuration. The jumpers should be placed as follows:

P5—removed

P12—removed

P19—installed on Pins 1 and 2 P47—installed on Pins 1 and 2 P48—installed on Pins 1 and 2

P50—all jumpers installed for 4-20 mA analog inputs. See 4.5.1 - Connecting the Analog Sen- sors for other configurations

P51—removed

2.8.1LCD Display Contrast

The level of contrast due to viewing angle of the LCD display can be adjusted using a small thumb wheel at the upper left of the control board just under the cable going to the display. The control is labeled R6.

NOTE

The LED backlighting on the text (4 x 20) display is always lit.

3000 specifications

The Liebert 3000 is a cutting-edge power protection solution designed to provide reliable and efficient backup power for critical applications. This uninterruptible power supply (UPS) system is engineered to safeguard sensitive electronic equipment from power disturbances, ensuring uninterrupted operations in data centers, telecommunications, and industrial environments.

One of the standout features of the Liebert 3000 is its high-efficiency design. With an efficiency rating of up to 94%, the system minimizes energy loss, resulting in lower operational costs and a reduced carbon footprint. This is particularly important in today's environmentally conscious climate, as organizations strive to meet sustainability goals while maintaining top-tier performance.

The Liebert 3000 employs advanced technologies to enhance its functionality. It incorporates online double-conversion technology, which provides a continuous supply of clean and regulated power. This technology ensures that connected loads receive stable voltage and frequency, shielding them from voltage spikes, sags, and outages. Additionally, the UPS offers features such as automatic battery testing, which helps ensure peak battery performance and reliability.

Another key characteristic of the Liebert 3000 is its modular design, allowing for flexible scalability. This means that organizations can easily expand the capacity of their UPS system as their power needs grow, without the need for extensive system overhauls. The modular architecture also facilitates simplified maintenance and reduces downtime, as individual modules can be serviced without interrupting power to the critical load.

The system is equipped with comprehensive monitoring and management capabilities. The Liebert 3000 provides real-time data on power usage, battery status, and system performance, enabling facility managers to make informed decisions and proactively address potential issues. The integration of remote management tools allows for seamless monitoring from anywhere, providing peace of mind for operators.

Overall, the Liebert 3000 combines high efficiency, advanced technology, and flexible design to deliver a robust power protection solution. Its reliability and performance make it a preferred choice for organizations seeking to protect their critical infrastructure while enhancing operational efficiency and sustainability. As businesses continue to rely on technology for their everyday operations, the Liebert 3000 stands out as a dependable safeguard against the uncertainties of power quality.