Operation with Advanced Microprocessor Controls

2.8.2Non-Volatile Memory

All critical information is stored in nonvolatile memory. Setpoints, setup parameters, and component run hours are kept inside the microcontroller in EEPROM. Information retained for the alarm history is kept in non-volatile RAM.

2.8.3DIP Switches

Equipment options are selected and enabled using DIP switches 1 through 7. These are located at the upper left of the control board and are labeled SW1. Switch 1 is at the top. These switches are factory set and should not require any user changes. The setting and function of the switches can be read from the LCD display (see Show DIP Switches on page 8 or the accompanying Table 4).

2.8.4Control Outputs

Active control outputs are indicated with LEDs on the lower section of the control board. Each LED is lit if the control output is active (on). The LEDs assist in troubleshooting the system. Refer to the fol- lowing table.

Table 6 Control output LEDs

LED

Control Output

 

 

R5

Heat Rejection

 

 

LLSV

Liquid Line Solenoid Valve

 

 

HGBP

Hot Gas By-Pass or Compressor Unloader Valve

 

 

C1

Compressor

 

 

RH1

Reheat Stage 1, Hot Gas, Hot Water Reheat Solenoid or SCR Reheats

 

 

RH2

Reheat Stage 2

 

 

HUM

Humidifier

 

 

FAN

Main Fan

 

 

HMV

Humidifier Make-Up Valve

 

 

LLSV2

Part Coil Solenoid Valve

 

 

14

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Liebert 3000 manual Non-Volatile Memory, DIP Switches, Control Outputs, Control output LEDs

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.

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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.

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