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Eaton BladeUPS 5 kVA to 60 kVA (N+1) User’s Guide 164201649—Rev 14
During Normal mode, the
indicator illuminates solid and the utility powers the UPS. The UPS monitors
and charges the batteries as needed and provides filtered power protection to your equipment.
Two settings are available for Normal Mode:
•
High Efficiency.
Double-conversion on demand.
•
Standard.
Continuous double-conversion.
By default, the UPS operates on a High Efficiency setting that minimizes heat contribution to the rack
environment. The system bypass input directly supplies the system output with three-phase AC power,
and the UPS stands ready to automatically transfer to double-conversion (Standard) operation as needed.
The battery recharges when necessary.
If the input line exceeds normal operating range, the UPS transfers to Standard operation to produce a
regulated output voltage. When the input line returns to normal operating range, the UPS returns to High
Efficiency operation.
You can change the default High Efficiency setting to Standard from the User Setting menu ( see
BladeUPS 12 model only.
Standard operation (continuous double-conversion) is available only for loads
less than 10 kW (85%). If the load exceeds the 10 kW limit while on Standard operation, the UPS will
switch back to High Efficiency operation until the load is reduced below 9 kW. After three attempts within
one hour to operate on Standard, the UPS will lock back into High Efficiency operation for one hour to
prevent continuous cycling.
Battery Mode
When the UPS is operating during a power outage, the alarm beeps once every five seconds and the
+
-
indicator illuminates solid.
When the utility power returns, the UPS transfers to Normal mode operation while the battery recharges.
If battery capacity becomes low while in Battery mode, the
+
-
indicator flashes slowly and the audible alarm
becomes continuous. If the Battery Low alarm is set, the
indicator also illuminates solid. This warning is
approximate, and the actual time to shutdown may vary significantly.
NOTE
Depending on the UPS load and the number of Extended Battery Modules (EBMs), the
Battery Low warning may occur before the batteries reach 25% capacity. See Table 28
for estimated runtimes.
When utility power is restored after the UPS shuts down, the UPS automatically restarts. UPSs in a parallel
system stagger their return from Battery mode by 500 ms, beginning with UNIT 1.
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 and your equipment is not protected; however, the utility power continues to be filtered
passively by the UPS. The
indicator illuminates.
The UPS transfers to Bypass mode when:
•
The user activates Bypass mode through the front panel.
•
The UPS detects the control panel being disconnected from the electronics module.
•
The UPS detects the electronics module being replaced.
•
The UPS detects an internal failure.
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