Tripp Lite 220/380V, 240/415V AC Operational Modes, Shutdown Procedure, Start-Up Procedure

Single UPS Operation

The diagrams and procedures in this section apply to a single UPS Power Module connected to a single equipment load. Note: all diagrams assume

the presence of two separate AC sources supplying two separate inputs: a mains source supplying rectifier input and a reserve source supplying reserve input. If your application only allows a single mains AC source, this source will supply both rectifier and reserve input.

•	Operational Modes	•	Shutdown Procedure
•	Start-Up Procedure	•	Manual Maintenance Bypass Procedure

Operational Modes

Normal Mode

In this mode, the power module continuously converts AC input power into DC power (to recharge the batteries and supply the inverter). The inverter, in turn, transforms DC power into clean, stable AC output power for the connected equipment load.

Back-Up Mode

In this mode, utilityAC input power has failed. Since the UPS System operates continuously on-line, connected battery modules instantly (with zero transfer time) supply DC power to the inverter. The inverter, in turn, transforms DC power into clean, stable AC output power for the connected equipment load.

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