User`s guide

33
4. Operation
164201085 Rev. F0
CONDITION / ACTIONLED
LCD PANEL
SYSTEM DISPLAY
The UPS is operating normally.GreenNormal Mode
The UPS is on battery. Confirm the AC circuit breaker is
on and the power connections are secure. When utility
power is restored, the UPS returns to Normal mode after
an 8-10-second delay.
RedStandby Mode
Normal startup operation.GreenSystem Initializing
Confirm the DC circuit breaker is closed and in the ON
position. Battery backup is not available if the battery
breaker is open off.
RedBattery Breaker Open
The battery did not recharge. Check batteries using
appropriate load tester. Replacement may be necessary.
RedBattery Charge Failed
Power requirements in the CATV network exceed the UPS
capacity. Reduce the load on the UPS by removing
network components. The UPS will shut down if the
overload condition persists.
RedOverload Shutdown
The UPS internal temperature is too high during inverter
operation for the inverter to operate within specifications,
and the UPS will shut down. The UPS restarts
automatically when utility power is restored.
RedOvertemp Shutdown
Power requirements in the CATV network exceed the UPS
capacity. Reduce the load on the UPS by removing
network components.
YellowOutput Overload
Message that appears when testing Standby mode by
sending the Forced Standby command via status
monitoring.
RedForced Standby Mode
Message that appears when remotely testing High Charge
mode via status monitoring.
Note : This function is not
available on some status monitors.
YellowForced High Charge Mode
Battery voltage is below 1.89 volts per cell and is
approaching Low Battery Cutoff point. The LCD message
and LED flash during this condition.
YellowLow Battery Warning
Battery is depleted; voltage fell below 1.75 volts per cell.
The inverter turns off and the UPS does not provide output
voltage until utility power returns.
RedLow Battery
The inverter turns off and the UPS does not provide output
voltage until utility power returns.
Cutoff
Message appears when the battery temperature sensor is
connected to the ZTT /Plus. Battery charge voltage is
adjusted based on the battery temperature.
Green
BATTERY TEMPERATURE
SENSOR USED
4.3 Front panel, continued
NOTE: Green = Normal AC Operation, Yellow = Alert, Red = Fault/Standby
Table 4-1 LCD/LED Indicators