OnLine Power Battery Backup System - Manual (Page 60)

OLP
Three Phase UPS Systems
6.0 INTERFACE
6-2
FAULT – Closed when the UPS encounters a fault condition, such as high DC
shutdown, short circuit, fuse/over-heat, overload shutdown, emergency
stop, inverter abnormal, bypass on shutdown. The contact is latched until
manual reset (off switch) or 30 seconds after the fault condition is
removed.
SS – Closed when the inverter static switch is conducting, open when the
reserve static switch is conducting (The two static switches will never
conduct simultaneously).
BYPASS – Closed when the maintenance bypass breaker is closed, open when
the breaker is opened.
BACK-UP – Closed when the inverter (running) is being backed up by the
battery.
BATL – Closed when the inverter is using battery power and the batteries are
about to be exhausted.
COM –This contact can be configured as the OR result of the signals
described above. SWR2-1 (dip-switch pin 1) ~ SWR2-7 (dip-switch pin 7)
can select one of the seven signals described above and SWR2-8 is the
COM enable switch. Please refer to the dip-switch of SWR2 on the 3R
PCB and the following examples and diagram.