OPTI-UPS DS160KD33 - Manual (Page 69)

6-2
RELAY CNR15
FAULT – Short when UPS encounter fault condition such as high dc shutdown,
short circuit, fuse/over-heat, overload shutdown, emergent stop, inverter
abnormal, bypass on shutdown, and is latched until manual reset (off
switch) or 30 sec. after fault condition removal
SS – Short when the inverter static switch is conducting, open when reserve
static switch is conducting (The two static switches will never conduct
simultaneously).
BYPASS – Short when the maintenance bypass breaker is closed; open when
the breaker is opened.
BACK-UP – Short when the inverter (running) is back-up by the battery.
BATL – Short when the inverter is consuming the battery and the battery is
about to be exhausted.
COM – This contact is the OR result of the signals described above. That is,
any other contact close, this contact will close too. The signal to be ored is
selectable through SWR2. See the figure
SWR2-1
SWR2-2
RELAY CNR12 INVON
TO
INTERNL
CIRCUIT
SWR2-3
SWR2-4
SWR2-5
SWR2-6
SWR2-7
OR
SWR2-8
RELAY CNR17
RELAY CNR13
RELAY CNR16
RELAY CNR14
RELAY CNR19
RELAY CNR20
OVL
FAULT
SS
BYPASS
BACK-
UP BATL
COM