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R&D – USER MANUAL DT0430-E04
3.2.1. MENU 1: UPS STATUS AND ALARMS
This menu is characterized by the first line of the message which can be UPS OPERATING (if the UPS
is operating normally) or UPS ALARM (if the UPS has an alarm condition). The meanings of the displayed
messages are given below:
UPS IN NORMAL OPERATING CONDITIONS
MESSAGE MEANING
MAINS OK / NOT AVAILABLE The input mains line is on and the voltage is / is not
in the specified range
RESERVE MAINS OK / NOT AVAILABLE The input by-pass supply line is on and the voltage
is / is not in the specified range
BATTERY FLOAT CHARGE The battery voltage is within the specified limits
INVERTER ON The inverter is on and operating normally
INVERTER – RESERVE SYNCHRONIZED / NOT
SYNCHRONIZED
Indicates the normal synchronization status
between the inverter and by-pass line
LOAD ON INVERTER The load is supplied by the inverter
LOAD ON RESERVE The load is supplied by the by-pass line. This may
be a temporary condition which lasts 20 seconds
after short overload
UPS MASTER Controls the other UPSes in parallel system
UPS SLAVE Controlled by another UPS in parallel system
Table 3.2.1
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