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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, utility AC 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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