QUINT-PS/24DC/24DC/ 5/CO
105537_en_02
PHOENIX CONTACT
16 / 22
15
Signaling
The active DC OK signal output, the active POWER BOOST
signal output, and the active U
IN
OK signal output are
available for function monitoring. In addition, the DC OK
LED, BOOST LED, and U
IN
<
19.2
V LED enable function
evaluation of the DC/DC converter directly at the installation
location.
Figure 12
Signal outputs
Due to permanent monitoring of input voltage, output
voltage and output current, critical operating states are
reported before errors occur.
15.1
Active switching output “DC OK”
During normal operation of the DC/DC converter, the DC OK
output signal (U
OUT
> 0.9 x U
N
) is between connection
terminal blocks “DC OK” and “-” and can carry a maximum
of 20 mA. The DC OK signal output indicates an output
voltage underrange of more than 10 % by switching from
“active high” to “low”.
The DC OK signal is decoupled from the power output. This
makes it impossible for devices connected in parallel to act
as an external power supply.
15.2
Active switching output “I
<
I
N
”
During normal operation of the DC/DC converter, the boost
output signal (I
<
I
N
) is between connection terminal blocks
“I
<
I
N
” and “-” and can carry a maximum of 20
mA. The
boost signal output indicates that the nominal current has
been exceeded and that boost mode has been entered by
switching from “active high” to “low”.
I < I
N
I > I
N
U < 0.9 x U
N
DC OK LED,
green
lit
lit
flashing
Boost LED,
yellow
OFF
lit
lit
"DC OK" active
switching
output
high
high
low
"I
<
I
N
" active
switching
output
high
low
low
Meaning
Normal
operation
POWER
BOOST, active
Overload
U
IN
> 19.2 V DC
U
IN
< 19.2 V DC
"U
IN
< 19.2 V" LED,
yellow
OFF
lit
Active switching
output "U
IN
> 19.2 V"
high
low
Meaning
U
IN
OK
U
IN
low
QUINT PO
WER
+
-
Input D
C 24V
Ou
tpu
t DC
24
V
5 A
-
-
+
+
DC
OK
Ι<
Ι
N
DC OK
Boost
18-29.5 V
-
U >
IN
19.2V
U
<9.6V
IN
!
18 ... 24 V DC
20 mA
DC OK
PLC D
igi
t
al
Input
+
18 ... 24 V DC
20 mA
I<I
N
PLC D
igi
t
al
Input
+
