Ensure common ground
between devices
Input Expander
Power Supply
C
N
C
C
N
C
T
P
V
-
Z
1
V+
Z
2
Z
3
C
Z
4
C
This output is suited for connection to an input on a Protege module with spare inputs available so that the
power supply AC status can be externally monitored. The connection example above shows monitoring of the
AC status set up in conjunction with a Protege input expander.
Battery Fail Status Output
The battery fail status output has a solid-state relay. The output relay contacts connect (normally closed) when
either the backup battery has been disconnected, or when the power supply is running on backup battery
power without AC power and the backup battery voltage drops below 11.2V. Upon reconnecting a backup
battery with a voltage greater than 12.5V, the output relay will revert back to its default state (normally open).
Ensure common ground
between devices
Input Expander
2A Power Supply
V
-
Z
1
V+
Z
2
Z
3
C
Z
4
C
C
T
AMPER
N
C
N
O
C
T
P
BA
T
T
O
K
AC
O
K
F
O
R
M
B
C
O
N
T
AC
T
S
(5
0
mA
ma
x)
This output is suited for connection to an input on the Protege system for early detection of complete power
failure. The connection example above shows monitoring of the battery status set up in conjunction with a
Protege input expander.
The outputs used for both the AC fail and battery fail status outputs are rated for low power use only (50mA,
12V Max). Incorrect use may cause erroneous faults or serious damage to the Power Supply and will
VOID
ALL WARRANTIES OR GUARANTEES
.
PRT-PSU-DIN-2A | Protege DIN Rail 2A Intelligent Power Supply | Installation Manual
23