OCTOBER 2002 MAXI-T MANUAL
DESCRIPTION OF ALARMS
ALARM
EXPLANATION
HIGH DC SHUTDOWN
Input dc voltage exceeded trip point (+20% of
nominal battery voltage). The over-voltage
must be active for longer than 15 seconds.
BATTERY DISCHARGING
DC voltage has dropped below nominal
battery voltage, indicating that energy is
being drained from the battery and not from
the rectifier.
DC CRITICAL
DC voltage has dropped to a value close to
the inverter switch-off level.
LOW DC SHUTDOWN
DC voltage has dropped below the low dc trip
point (-20% of nominal battery voltage).
INVERTER IN STANDBY
The inverter is off. The inverter can restart
automatically when the condition that
switched it off e.g. LOW DC SHUTDOWN
returns too normal.
INV VOLTS OUT LIMITS
The inverter output voltage is out of
tolerance. (+10% or –10%).
INVERTER OVERLOADED
The load connected to the output of the
inverter exceeded 120% of its full rating. This
condition was active for longer than 15
seconds.
OVER-CURRENT STOP
The inverter has switched off due to
excessive overload (output current exceeded
300% for longer than 40ms).
INVERTER LOCKOUT
The inverter has failed to start after 5 times
attempts within 250 seconds and has
switched off. The load will now be supplied
from the mains via the Static Switch.
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