Operation
Eaton 9130 700/3000 VA UPS User’s Guide 164201718—Rev 7 www.eaton.com/powerquality 34
Setting Power Strategy
On the High Efficiency setting, the UPS operates normally on Bypass, transfers to inverter in less than 10 ms
when utility fails, and transfers back to Bypass in 1 minute after utility returns.
The indicator illuminates
when the UPS transfers to Bypass.
NOTE High Efficiency operation is available after one minute of stable power.
To set the power strategy:
1. Press any button to activate the menu options, th
en select SETTINGS, USER SETTINGS, and POWER
STRATEGY.
2. Select HIGH EFFICIENCY or NORMAL, and EN
TER to confirm.
Configuring Bypass Settings
The following settings are available for configuring Bypass operation.
Transfer to Bypass When Overload. The
default forces a transfer to Bypass when any overload condition
occurs. You can configure the setting for a delayed transfer, with the amount of delay determined by the
amount of overload, as shown in Table 22 on page 59.
Bypass Voltage Low Limit. The
default disables a transfer to Bypass if the measured bypass voltage level is
below the nominal output voltage minus 15%. You can configure the setting for another percentage of nominal.
T
his setting can be overruled by the “Qualify Bypass” setting.
Bypass Voltage High Limit. The default disables a transfer to Bypass if the measured bypass voltage level is
above the nominal output voltage plus 10%. You can configure the setting for anothe
r percentage of nominal.
This setting can be overruled by the “Qualify Bypass” setting.
Qualify Bypass. The default allows a transfer to Bypass only when Bypass is within the following
specifications:
l
Bypass voltage is between the “Bypass Voltage Low Limit” and “Bypass Voltage High Limit” settings.
l
Bypass frequency is within nominal frequency 5 Hz.
l
The inverter is synchronized with Bypass when the “Unsynchronized Transfers” setting is disabled.
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