Bypass Mode; Standby Mode - Eaton Powerware 9140 User Manual

Bypass Mode

In the event of a UPS overload or internal failure, the UPS transfers your
equipment to utility power. Battery mode is not available; however, the
utility power continues to be passively filtered by the UPS. The
indicator illuminates. The UPS transfers to Bypass mode when:
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The user activates Bypass mode through the front panel.
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The UPS detects the electronics module or a battery being replaced.
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The UPS has an overtemperature condition.
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The UPS has an overload condition of 110 to 130% for 60 seconds,
130 to 150% for 1 second, or greater than 150% for 100 ms.
If an overload condition is corrected, the UPS returns to Normal mode.
However, if an overload condition occurs three times within 20 minutes,
the UPS will lock on Bypass for one hour.

Standby Mode

When the UPS is turned off and remains plugged into a power outlet,
the UPS is in Standby mode. The
that power is not available to your equipment. The battery recharges
when necessary.
Figure 37. Internal Circuit Configuration
®
EATON Powerware 9140 UPS (7.5–10 kVA) User's Guide
indicator flashes slowly, indicating
Bypass
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OPERATION
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