Tripp Lite SU10KRT3U Owner's Manual for SmartOnline Single-Phase 10kVA UPS 932 - Page 19

Operation continued Normal Operation During normal operation, the first line of the control panel's LCD screen shows the UPS system's operating mode: ONLINE, ECONOMY, ON BATTERY or BYPASS. ONLINE: The UPS system uses double conversion to provide precision-regulated AC power while utility power is available and switches to ON BATTERY mode instantly if utility power is interrupted (zero transfer time). ECONOMY: The UPS system provides AC power at high efficiency while utility power is within ±10% of nominal voltage and switches to ON BATTERY mode quickly if utility power is interrupted. If utility power is not within ±10% of nominal voltage, the UPS system switches to ONLINE mode. ON BATTERY: If utility power is interrupted, the UPS system provides backup AC power from battery as long as battery power lasts. It switches back to ONLINE or ECONOMY mode if utility power becomes available and shuts down if battery power is depleted. BYPASS: The UPS system provides filtered AC power to equipment while utility power is available and shuts down if utility power is interrupted. Industrial Power Feature: If the UPS system detects an output voltage fluctuation lasting more than 5 ms, the UPS system will switch from ONLINE mode to BYPASS mode, returning to ONLINE mode when the output returns to normal. The second line of the control panel's LCD screen shows basic power conditions, such as load, input voltage/frequency, output voltage/ frequency and battery voltage. Push the scroll up and scroll down buttons to browse through this information in the sequence shown below. ONLINE MODE 00.00 KW / 000%   STANDALONE 00.00 KVA / 000%   INPUT VOLTAGE 000V / 00.0Hz   BYPASS VOLTAGE 000V / 00.0Hz   OUTPUT VOLTAGE 000V / 00.0Hz   BATTERY CAPACITY 000V / 000%   REMAINING TIME 00.00 / 000%   ONLINE 10KVA V04 CV01 On Battery Alarm The alarm beeps and the "BATTERY" LED illuminates when the UPS system operates in ON BATTERY mode. If the battery charge level is 50% or more, the UPS system will beep every two seconds. If the battery charge level is less than 50%, the UPS system will beep twice per second. If the battery is nearly depleted, the UPS system will beep continuously. To silence the alarm, press the "ON/MUTE" button. The "BATTERY" LED will remain on after you silence the alarm. Overload Messages When the UPS system detects an output overload, the LCD screen displays an overload message: OVERLOAD! LOAD = XXX% X.XXKW After it detects the overload, the UPS system will begin a countdown. If it is still overloaded at the end of the countdown, the UPS system will automatically switch to BYPASS mode to protect the inverter. The countdown duration varies with the size of the overload: Overload Condition 106% - 125% 126% - 150% >150% Countdown Duration 1 Minute 30 Seconds Immediate If the overload is less than 106%, the UPS system will continue to operate indefinitely, but the overload should be corrected as soon as possible. 19 201102089 93-2982.indb 19 7/11/2011 3:49:32 PM