Liebert PSP user manual Site Wiring Fault Indicator Red, Transfer Voltage Selectors DIP Switches

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Site Wiring Fault Indicator (Red)

The Site Wiring Fault Indicator on the rear panel, as shown below, illuminates red when the UPS detects a line-neutral reversal or a poor neutral-ground. (Refer to Troubleshooting Chart if this indicator is illuminated.)

Rear of UPS

DIP Switches

 

Site Wiring Fault

Indicator (Red)

Transfer Voltage Selectors (DIP Switches)

The two-position DIP switch control on the rear panel, as shown above, allows the operator to select the utility transfer voltage at which the UPS will switch to battery power. The factory default set- tings are 100VAC - 135VAC. DIP switch positions for each voltage set- ting are as follows:

DIP switch settings

 

Left

 

Right

Nominal Utility

Setting

 

 

 

 

 

 

Up

Up

120VAC

100 - 135VAC (default)

 

 

 

 

 

 

Up

Down

110VAC

100 - 145VAC

 

 

 

 

 

 

Down

Up

127VAC

90 - 135VAC

 

 

 

 

 

 

Down

Down

120VAC

90 - 145VAC

 

 

 

 

 

 

! CAUTION

Never change the voltage settings while the UPS is ON and powering connected loads. Change DIP switches only when the UPS is OFF.

! CAUTION

To ensure protection of the connected equipment, the DIP switch settings should match the nominal utility input voltage. DIP switch settings not matching the nominal utility could potentially damage connected equipment.

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Contents Power Availability Powersure PSPPage Table of Contents Specifications MaintenanceTroubleshooting Safety Precautions Important Safety InstructionsPage Battery Handling Precautions Introduction & System Description Front View of UPS DIP Rear View of UPSBattery Charger Transfer SwitchBattery InverterWHAT’S Included Installation Option 1-Serial Communications Controls and Indicators ON/OFF/Alarm Silence ButtonUtility Indicator Green Status Indicators Fault, Utility, BatteryTransfer Voltage Selectors DIP Switches Site Wiring Fault Indicator RedModes of Operation Normal ModeBattery Mode Communications DB-9 ConnectorUSB Interface Port Remote Shutdown Via the DB-9 ConnectorData Line Protection Connectors Battery Replacement Cleaning the UPSMaintenance Maintaining BatteriesBattery Replacement Procedure Troubleshooting Guide to Status IndicatorsProblem Cause Solution Troubleshooting ChartInput AC Parameters SpecificationsProduct Warranty Registration Battery Run TimesPage PowerSure PSP Mounting Template Page Page Company Behind the Products

PSP specifications

The Liebert PSP (Power Supply Panel) is a critical component designed to provide reliable power protection and support for various sensitive equipment, especially in environments like data centers and telecommunications. This device is engineered to ensure continuous operations and safeguard against electrical disturbances, making it an essential part of an uninterruptible power supply (UPS) system.

One of the main features of the Liebert PSP is its advanced power conditioning capability. The unit is equipped with technology that filters out electrical noise and voltage spikes. This results in a stable output voltage that protects connected devices from damage due to power anomalies. The device utilizes double-conversion online technology, which continuously converts incoming AC power into DC and then back to AC. This process provides a clean and consistent power supply, ideal for sensitive electronic equipment.

Additionally, the Liebert PSP features built-in battery backup, ensuring that even during power outages, connected devices remain operational. The intelligent battery management system optimizes battery performance and lifespan by managing charge cycles efficiently. The unit can accommodate various battery types, providing flexibility based on user requirements.

The design of the Liebert PSP emphasizes robust thermal management to maintain optimal operating conditions. It offers features like advanced airflow systems and temperature monitoring to prevent overheating, which can lead to equipment failure. Furthermore, it often includes user-friendly interfaces, such as LCD displays or LED indicators, for real-time monitoring of power conditions and status.

In terms of connectivity, the Liebert PSP usually comes with multiple input and output options, allowing seamless integration into existing power infrastructure. It often supports communication protocols that enable remote monitoring and management, enhancing the visibility and control over power resources.

In summary, the Liebert PSP stands out due to its combination of advanced power conditioning, reliable battery backup, effective thermal management, and user-friendly interfaces. Its design caters to the needs of critical applications, ensuring that vital systems remain operational even in the face of power disruptions. With its robust technology and thoughtful engineering, the Liebert PSP is a trusted solution for maintaining power reliability and protecting sensitive equipment in various settings.