5
2.2.3 Alarm Connections
The LTI2 PRO
inverter is equipped with a single set of Form ‘C’ dry
-type relay contacts (60 VDC @ 0.5A rating)
for Alarm.
Figure 5 - Alarm Connections
3.0 Operation
3.1 Operation Mode
3.1.1 AC Power Supply Mode
AC inverter working mode:
Inverter employs mains for load when there are mains and switches to the inverter
when the mains is abnormal.
Figure 6 - AC Inverter Mode
3.1.2 DC Power Supply Mode
DC dominated inverter working mode: Under normal condition, DC-dominated inverter is under inverter output
status all the time; in case of DC fault, it switches to mains by-pass.
Figure 7 - DC Dominated Inverter Mode
