Modes Of Operation - Compaq R12000 XR User Manual

Operation

Modes of Operation

The UPS has five modes of operation, indicated by the LEDs (see Figure 2-3):
•
Standby Mode
— On Utility Power: LED 1 is flashing slowly.
— Power is not available at the UPS output.
— The UPS monitors and charges batteries, if required.
•
Operate Mode
— LED 1 is solid green.
— The UPS is supplying power to the output.
— The UPS monitors and charges batteries, if required.
•
Bypass Mode
— LED 1 and LED 2 are off.
— LED 3 is solid amber and an audible alarm is active.
— LED 4 is solid red.
— The UPS is supplying power to the loads.
— The UPS does not charge the batteries.
•
Battery Mode
— LED 2 is solid amber.
— LED 4 is solid red.
— Utility power is not present.
— The UPS does not charge the batteries.
— Power is available at UPS outputs.
•
Redundant Mode
— LED 5 is solid green.
— At least one electronics module of the load can be in a redundant state (two or more
— All electronics modules share the load, but there is enough power to allow an
2-4
electronics modules working).
electronics module to go out of service.
Compaq Uninterruptible Power System R12000 XR User Guide