Nominal Input Voltage - Powerware 5140 User Manual

Configuration

Nominal Input Voltage

If the utility power consistently fluctuates outside of the configured
UPS voltage range, the UPS repeatedly corrects the input voltage by
switching to battery power.
You can configure the UPS to more closely match the nominal input
voltage by selecting a different input voltage or extending the input
voltage range. The default is auto-sensing to 208/230V.
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1. Have a qualified electrician measure the utility voltage.
2. Use the System Setup Menu to access the Set Voltage parameter
(see page 42).
3. Select one of the following options: 200V, 208V, 220V, 230V,
240V, 208/230V auto-sensing, or 230V extended. Use the
following table to help select the appropriate voltage.
Nominal Input
Voltage (Vac)
200V Nominal +20%/–17%
208V Nominal ±20%
220V Nominal ±20%
230V Nominal ±20%
240V Nominal ±20%
4. Update the nominal input voltage range and/or the extended
utility voltage range parameters as required.
Normal Input
Voltage Range
166-240V
166-248V
176-264V
184-276V
192-288V
Powerware 5140 User's Guide
®
Extended Input
Voltage Range
166-288V
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