Tripp Lite 3U owner manual Indicator Lights Front Panel, Basic Operation

Basic Operation

Indicator Lights (Front Panel)

All Indicator Light descriptions apply when the UPS is plugged into a wall outlet and turned ON.

POWER: Lights green when the UPS is receiving AC power. Illuminates constantly when the UPS is in the ON mode, indicating that batteries are charging and connected equipment is receiving filtered AC power. Flashes while in STANDBY mode to indicate that batteries are charging but connected equipment is not receiving power.

VOLTAGE CORRECTION: Lights green whenever your UPS is automatically correcting high or low AC line voltage. The UPS will also click gently. These are normal, automatic operations of your UPS, and no action is required on your part.

BATTERY CHARGE: This multicolored light displays 7 separate UPS battery charge conditions. It will turn from red (low) to yellow (medium) to green (full) to show you the level of battery charge. If the light is constant, your UPS is in the ON or STANDBY mode, operating from line power, and the battery is charging. If the light is flashing, your UPS is in the INVERT mode, operating from battery, and the battery is discharging. If the light is flashing red, your UPS is in INVERT and is nearly out of power: you should save files and shut down your equipment immediately.

OUTPUT LOAD: This multicolored light shows how heavy your UPS’s load is. Steady green indicates a light load, steady yellow a medium load. When the light is red, your UPS is supporting a load above 85% of its capacity. If the red light begins flashing, then your UPS is severely overloaded. Immediately remove load from the UPS until the light stops flashing.

BATTERY WARNING: Lights red if your UPS’s self-test (initiated with the Mute/Test Switch) reveals a low battery charge or internal fault. If this light turns on, let the UPS charge for 12 hours then perform a second self-test. If the light stays on, contact Tripp Lite for service.

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