Vertiv™ | Liebert® SRC-G | User Manual 46
Controller Operation Instructions
Chapter 5: Controller Operation Instructions
This chapter provides a detailed description on feature, appearance, color screen, control buttons, control
interface and menu structure of Vertiv™ Liebert® SRC-G units.
5.1. Feature
The microprocessor controller has the following features
• It can monitor and display the operation status of Liebert SRC-G unit to maintain the environment within the
range of setpoints.
• Equipped with a 128×64 dot graphics color screen with white back-light with a user-friendly interface.
• Provides a two-level password protection to prevent unauthorized operation.
• Provides multiple functions, including self-recovery upon power failure, high & low voltage protection, phase
loss protection and protection against phase-reversal.
• Accurately record the run-time of important components through menu operation.
• Stores up to 99 historical alarm records.
• Configured with an RS485, using MODBUS-RTU communication protocol.
5.2. Graphic Screen Appearance
The microprocessor controller interface is shown in Figure 5-1. The graphic color screen displays English menus
with white back-light. More detailed operating status of certain component and alarm information are available
from the Main Menu screen. The selected menu option will be highlighted while browsing. The digit to be
changed will be highlighted while scrolling through the settings menu.
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