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Operation
page 2 —9
Users Manual
LOAD ON
BYPASS !
This message indicates that the load has been transferred to the bypass AC input (mains 2) source. The load is no
longer protected.
BYPASS PROBLEM
CHECK FREQUENCY !
This message indicates that the bypass AC input (mains 2) source is out of frequency tolerance. The inverter has
switched to free-running mode. Transfer of the load from the inverter output to the bypass AC input source requires
an interruption of power to the load.
BYPASS PROBLEM
CHECK VOLTAGE !
This message indicates that the bypass AC input (mains 2) source is out of voltage tolerance. The inverter has
switched to free-running mode. Transfer of the load from the inverter output to the bypass AC input source requires
an interruption of power to the load.
INDEPENDENT INVERTER
FREQ. COMMAND ON !
This message indicates that the inverter has been set to free-running mode. The inverter is not synchronized to the
bypass AC input (mains 2) power source. Transfer of the load from the inverter output to the bypass AC input source
requires an interruption of power to the load.
BYPASS TRANSFER
LOCKOUT COMMAND ON !
This message indicates that the UPS has been set not to transfer from the inverter to the bypass AC input (mains
2) source. In the event of an inverter shutdown, the load will be disconnected.
BATTERY CABINET
OVERTEMP. !
This message indicates that the ambient temperature of the battery is out of tolerance.
UPS INPUT PROBLEM
CHECK FREQUENCY !
This message indicates that the main AC input (mains 1) frequency is out of tolerance. The rectifier/battery charger
has shut down and the inverter is operating from its battery source.
UPS INPUT PROBLEM
CHECK VOLTAGE !
This message indicates that the main AC input (mains 1) voltage is out of tolerance. the rectifier/battery charger
has shut down and the inverter is operating from its battery source.
CHARGER SHUTDOWN
COMMAND ON !
This message indicates that the rectifier/battery charger has been instructed to shut down, for example during
progressive (stepped) transfer to a motor-generator set.