ISS Technology Update, Volume 9, Number 4
Page 2
...square wave, a stepped sine wave, or a true sine wave. The UPS can change the tap on the design of output from a square wave inverter HP UPSs do not output a square waveform. Square wave inverter The square wave inverter is used in lowcost standby UPS devices. Output from a stepped or modified...UPSs and some standby UPSs. Using a UPS with a square wave inverter will power the load through the inverter until the utility voltage is within spec or the battery is depleted. Figure 2. Some UPS manufacturers also refer to output from a square wave inverter as the dead zone is less ...
...square wave, a stepped sine wave, or a true sine wave. The UPS can change the tap on the design of output from a square wave inverter HP UPSs do not output a square waveform. Square wave inverter The square wave inverter is used in lowcost standby UPS devices. Output from a stepped or modified...UPSs and some standby UPSs. Using a UPS with a square wave inverter will power the load through the inverter until the utility voltage is within spec or the battery is depleted. Figure 2. Some UPS manufacturers also refer to output from a square wave inverter as the dead zone is less ...
UPS R1500 XR Models User Guide
Page 38
... ( ) is flashing red, the Utility LED ( ) is flashing red. The battery voltage is low because the UPS has been out-of spec while the UPS is supplying battery power, save your current work and power down the system. Protected devices are flashing red and an audible alarm ... be silenced. Suggested Action Save your current work and prepare to power down the UPS. Remove one or more devices to battery power. continued HP Uninterruptible Power System R1500 XR Models User Guide 5-3 The Site Wiring Fault Indicator ( ) is solid red, and an audible alarm sounds. The...
... ( ) is flashing red, the Utility LED ( ) is flashing red. The battery voltage is low because the UPS has been out-of spec while the UPS is supplying battery power, save your current work and power down the system. Protected devices are flashing red and an audible alarm ... be silenced. Suggested Action Save your current work and prepare to power down the UPS. Remove one or more devices to battery power. continued HP Uninterruptible Power System R1500 XR Models User Guide 5-3 The Site Wiring Fault Indicator ( ) is solid red, and an audible alarm sounds. The...