07
NXZ Automatic Transfer Switch
Used in grid - power generation mode only
and connected to the generator as needed,
or omitted. In case the normal power supply
fails,terminals 502 and 503 are connected.
1.Used in grid - power generation mode and may be omitted, but the
delay of generator start-up defaults to 0s.
2.Communication terminal wiring must be connected.
Normal neutral
Normal power supply
Normal closing
Alternative neutral
Alternative power supply
Alternative closing
To fire control room
St
at
e o
f i
nt
er
na
l c
on
ta
ct
of t
he n
or
m
al c
on
tro
lle
r
of n
or
m
al p
ow
er s
up
pl
y
To the remote power
of generator
Connected to upper computer (RS485)
Terminals 401 and 402 can only be connected to passive signal.
If the fire control signal is active signal, the normally open contact of
relay must be connected to the controller after switching through the
relay. Terminals 403 and 404 are connected after the duplexing of fire
control. After the fire control signal being removed, the normal
operating state can be restored by pressing any key on the controller.
+
-
RS485
+
-
Figure 8
Type B controller
Typical application
Auxiliary power
Passive Input
Passive Output
Fire Linkage Control
Split interface
Generator control
II Power indicator
Passive output
AC230V Output
I Power indicator
AC230V Output
Figure 9
Typical application
