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Liebert ITA2 6kVA UPS Equipment information & support

The Vertiv Liebert ITA2 6kVA is an industrial-grade, high-frequency online double-conversion UPS featuring a unity power factor (PF=1.0, 6kW capacity), a 2U rack/tower convertible form factor, and ultra-wide utility grid adaptability, engineered to deliver continuous, zero-transfer clean AC power to mission-critical telecom and industrial nodes.

Equipment information

Brand
Vertiv
Equipment model
Liebert ITA2 6kVA UPS
Equipment type
UPS power
Controller / software version
Confirm against the installed equipment
View full product specifications
Vertiv Liebert ITA2 6kVA/6kW Industrial Rack/Tower Online Double-Conversion UPS Official Studio Photo 1

Information below comes from the current product catalogue. Confirm the controller, software version and configuration of the installed equipment separately.

Rated Output Power
6kVA / 6kW (Output Power Factor 1.0)
AC Input Voltage Range
176V AC ~ 288V AC (Ultra-Wide AC Grid Tolerance)
Topology
Online Double Conversion Pure Sine Wave
Power Conversion Efficiency
≥ 95.5% (Up to 98.5% in ECO Mode)
Parallel Redundancy Capacity
Supports Up to 3+1 Parallel Redundancy
Battery System Voltage
±96V / ±120V / ±144V / ±192V DC Flexible Config

Alarms & troubleshooting

INV_FAULT (Inverter Fault / Bypass Active)
Fault LED solid Red, Inverter LED Off, Bypass LED solid Amber
Inverter IGBT drive anomaly, DC bus over/undervoltage, or hardware-level inverter output overcurrent protection trip
1. Review LCD historical log to identify the specific secondary fault code. 2. Measure utility mains input and DC bus voltage levels for nominal range compliance. 3. Disconnect non-critical loads and execute an inverter restart/soft reset. 4. If the fault persists upon restart, isolate the unit and replace the power/inverter assembly.
BAT_DISCONN (Battery Disconnected / Open Circuit)
Warning LED solid Amber, Battery LED flashing, buzzer beeps every 2 seconds
External battery cabinet circuit breaker open, blown DC fuse, reversed polarity, or battery detection cabling disconnected
1. Verify that the external battery circuit breaker (BCB) is in the closed (ON) position. 2. Measure open-circuit voltage at the DC input terminals with a multimeter to verify nominal threshold. 3. Inspect battery communication cable and temperature sensor terminations for loose contacts. 4. Initiate a manual battery self-test via the LCD display to clear the latching condition.
OUTPUT_OVERLOAD (Output Overload / Power Exceeded)
Warning LED flashing Amber (Bypass LED on if transferred), buzzer sounds continuously
Aggregate connected load exceeds 6kVA/6kW nominal capacity, excessive downstream inrush current, or low-impedance branch short
1. Check the LCD percentage load meter to determine the magnitude of overload (e.g., 105%-125% vs >150%). 2. Immediately shed non-critical servers or auxiliary IT peripherals. 3. Confirm if the UPS automatically re-transfers from bypass back to inverter once load drops below 90%. 4. If overload indication persists with zero load, inspect the output current transformer (CT) sensing circuitry.
OVER_TEMP (Internal Overtemperature / Heatsink Thermal Trip)
Fault LED solid Red, Bypass LED solid Amber, buzzer beeps rapidly at 0.5s intervals
Ambient temperature exceeds 40°C, ventilation intake/exhaust obstructed, internal dust accumulation, or thermal NTC sensor failure
1. Verify data room HVAC status and ensure ambient temperature returns below 30°C. 2. Inspect and clear front intake grilles and rear exhaust louvers from dust blockages and debris. 3. Allow the UPS to cool down; reset the alarm via LCD to re-engage inverter operation. 4. If thermal alarm persists after cooling and fans spin freely, inspect NTC thermistor harness and control logic.
FAN_FAULT (Fan Failure / Tachometer Lock)
Warning LED flashing Amber, Fault LED solid Red, buzzer sounds intermittently
Cooling fan bearing locked, mechanical obstruction, fan power cable loose, or PWM tachometer feedback signal loss
1. Visually check rear exhaust fans to identify non-spinning units and inspect for physical obstructions. 2. Power off, isolate the UPS, and manually spin the fan blades to verify bearing friction. 3. Inspect fan power connectors and tachometer sense pins on the main controller board for firm seating. 4. If wiring is intact but the fan does not spin or report RPM, replace the defective 12V/24V DC fan assembly.

Access Complete Maintenance & Full Alarm Troubleshooting Manual

This page lists high-frequency critical alarm codes commonly encountered in field maintenance. Comprehensive manufacturer troubleshooting matrices, board-level repair guides, detailed electrical schematics, and firmware commissioning manuals are delivered alongside equipment upon formal project procurement, accompanied by dedicated FAE technical support.

Contact Account Manager for Full Manual

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