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The products covered by this instruction manual are manufactured and/or sold by Vertiv. This document is the property of Vertiv and contains confidential and proprietary information owned by Vertiv. Any copying, use or disclosure of it without the written permission of Vertiv is strictly prohibited.
IMPORTANT! This manual contains important safety instructions that must be followed during the installation and maintenance of the UPS and batteries. Read this manual thoroughly and the safety and regulatory information, available at https://www.vertiv.com/ComplianceRegulatoryInfo, before attempting to install, connect to supply, or operate this UPS.
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1 PSI5 DESCRIPTION The Liebert®PSI5 is a line-interactive UPS designed for IT applications such as network closets and small data centers. It is available in 1U, 2U, MT (mini tower) and and LI (lithium-ion) form factors. It provides reliable power protection for servers, critical nodes, network workstations, large network peripherals, network routers, bridges, hubs and other electronic equipment.
Figure 1.9 Controls and Display on 2U, MT and LI Models ITEM DESCRIPTION ON/MUTE button. See Controls on page 24, for details. SELECT button. See Controls on page 24, for details. OFF/ENTER button. See Controls on page 24, for details. Vertiv™ | Liebert® PSI5 Installer/User Guide...
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Figure 1.10 Controls and Display on 1U Models ITEM DESCRIPTION ON/MUTE button. See Controls on page 24, for details. SELECT button. See Controls on page 24, for details. OFF/ENTER button. See Controls on page 24, for details. 1 PSI5 Description...
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• Inspect the UPS for shipping damage. If any shipping damage is found, report it to the carrier and your local dealer or your Vertiv™ representative immediately. • Check the accessories included in the packing list. If there is any discrepancy, contact your local dealer or your Vertiv representative immediately.
Rotate the display by pulling out, and turning it clockwise until it is seated in the proper orientation. Connect the two halves of the stand together. Place the UPS in the stands. Make sure that the stands are installed 70 mm (2.76 in.) from the edge of the unit. Vertiv™ | Liebert® PSI5 Installer/User Guide...
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Figure 2.2 Attaching stands to the UPS and external battery ITEM DESCRIPTION Connect the two halves of the stand to the spacer, after installing the additional stand components shown in item 4, and install the securing screws. Place the UPS and external battery pack in the stands. (Rotate the display on the UPS if needed, see Figure 2.1 on the previous page.) Make sure that the stands are installed 70 mm (2.76 in.) from the edge of the unit.
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Install the UPS in the rack. Figure 2.4 Installing the external battery in a rack ITEM DESCRIPTION Attach the brackets to the external battery. Install the supplied rack kit into the rack. Install the external battery in the rack. Vertiv™ | Liebert® PSI5 Installer/User Guide...
2.4.2 Installing a 1U Model CAUTION: Do not use the mounting brackets to lift the unit. Use the mounting brackets only to secure the UPS to the rack. See Figure 2.5 below to install the unit. Figure 2.5 Installing the UPS in a rack ITEM DESCRIPTION Attach the brackets to the UPS.
NOTE: After installation and initial startup, set the number of installed battery cabinets in the UPS Settings. NOTE: When two or more external battery cabinets are used with PSI5-1100/2200/3000/5000 models, the UPS load rating is decreased by 20%. Vertiv™ | Liebert® PSI5 Installer/User Guide...
Remove the two screws and protective cover on the Network Communications Port on the rear panel. 2. Insert the card into the port and secure it with the screws. 3. Refer to the documentation with the card or at www.Vertiv.com for cable connection and operation. 2.10.1 Connecting AC Input...
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NOTE: While every precaution has been taken to ensure that the battery is in good condition, Vertiv™ recommends plugging the UPS into AC input and to charge the battery for at least 12 hours prior to providing full backup time protection for any utility power abnormality.
3 OPERATION 3.1 Modes of Operation 3.1.1 Off Mode The UPS input is plugged into a stable, nominal source, but the outlets are turned Off. The internal batteries are charging. 3.1.2 On/Normal Mode The UPS input is plugged into a stable, nominal source, and the outlets are turned On. The internal batteries are charging. 3.1.3 On/Automatic Voltage Regulation (AVR)/Boost Mode The UPS input is plugged in, but the voltage source is abnormally low (brown-out).
3.1.8 Controls Figure 3.1 Display and Buttons on the front panel of 2U and MT units Figure 3.2 Display and Buttons on the front panel of 1U units Vertiv™ | Liebert® PSI5 Installer/User Guide...
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Table 3.1 Control button descriptions ITEM DESCRIPTION On/Mute Button. Powers the UPS On and other functions depending on the current operating mode. • UPS On: When in Off mode, press and hold for 2 seconds to enter Battery Self-Test mode, then On mode. •...
Estimated backup time in H (hours), M (minutes), or S (seconds) Indicates warning and fault codes. See Faults on page 29, and Warnings page 28. Displays various UPS operation parameters. Settings menu. See Configuring UPS with the Settings Menu on page 30. Audible On/Battery mode alarm silenced Vertiv™ | Liebert® PSI5 Installer/User Guide...
Replacing the UPS Batteries on page 33. connected Over charge Call Vertiv customer support, 1-800-222-5877. Remove the EPO state on the EPO connector. Emergency Power Off activated NOTE: Output immediately shuts Off when the EPO warning occurs. Vertiv™ | Liebert® PSI5 Installer/User Guide...
Inverter voltage high Turn Off the UPS, disconnect all connected loads and restart the UPS. If the fault is still active, call Vertiv customer Inverter support, 1-800-222-5877. If the fault is no longer active, plug each piece of equipment in one at a time to locate the device voltage low that has the short circuit.
4. Use the up/down arrow buttons to select the setting, then press OFF/Enter. See Table 3.6 on the facing page, for the settings. 5. When finished, select program option 00, and press OFF/Enter to exit Settings mode. Vertiv™ | Liebert® PSI5 Installer/User Guide...
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Table 3.6 Settings Menu Options PROGRAM SETTING OPTIONS NUMBER Nominal voltage setting. Set the nominal system voltage to match the input voltage of the UPS. This setting affects the buck/boost/on- battery transfer points and sets the output voltage in Battery mode. For 120VAC models: •...
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In all cases, the batteries should be kept charged to retain their design life. The PSI5 charges the batteries continuously when it is connected to input power. If the PSI5 will be stored for a long time, Vertiv™recommends connecting the UPS to input power every 4 to 6 months for at least 2 hours for LI models and 24 hours for lead acid models to ensure full recharge of the batteries.
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10. Press and hold the power button for 3 seconds to initiate the Battery-Self Check mode clearing any previous battery fault warning. 11. Properly dispose of the old batteries at an appropriate recycling facility or return them to Vertiv™ in the packing material from the new batteries.
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5. Press and hold the power button for 3 seconds to initiate the Battery-Self Check mode clearing any previous battery fault warning. 6. Properly dispose of the old batteries at an appropriate recycling facility or return them to Vertiv™ in the packing material from the new batteries.
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Slide out the battery kit and disconnect the battery connector. Connect the battery connector to the replacement battery. Slide the replacement battery kit into the UPS. Replace the battery cover. Secure the battery cover with the screws. Vertiv™ | Liebert® PSI5 Installer/User Guide...
5 SPECIFICATIONS Table 5.1 on the next page, lists the specification for the Liebert® PSI5 2U UPS models. Table 5.2 on page 41, lists the specification for the PSI5 1U and MT UPS models. 5 Specifications...
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