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Power Supply, Primary Switch Mode for Universal Use – QUINT 12 V DC/10 A
6.6. Output (Figure 11)
The 12 V DC connection is made using the "+" and
4
3
2
"–" screw connections on the screwconnection 2 . The
OK C
–
O 4 O C
+
ut
pu
+–
tD
–
2V
10
output voltage set upon delivery is 12 V DC.
The output voltage can be adjusted from 11.5 to
18.0 V DC on the potentiometer 5 .
Protecting the Secondary Side:
The device is electronic short-circuit-proof and idling-
proof. In the event of an error, the output voltage is
limited to a maximum of 25 V DC.
It should be ensured that all output cables are the
correct size for the maximum output current or have
13
14 D
13
1 D
K
+
C
1
+
–
A
separate fuse protection.
The secondary side cables should have large cross
DC
O
K
5
11 A d j
. - us
18 t
AP
sections to keep voltage drops on the cables to a
minimum.
5
V
P
Signaling
Both DC OK outputs are used for preventive function
monitoring of the power supply. An electrically isolated
signal contact 4 and an active DC OK signal 3 are
available. In addition, the DC OK LED 6 can be used
to evaluate the function of the power supply directly at
the installation location.
11
Figure U
Green "DC OK" LED
ON
Flashing
OFF
Active
DC OK switching output
U = 12 V
U = 0V
U = 0V
Output 12V DC
(with reference to "-")
Electrically isolated
DC OK output
Closed
Open
Open
13
14
+ + – –
Meaning
Output voltage
Output voltage
No voltage at the
greater than 90% less than 90% of output
of the set voltage the set voltage
DC OK
Description
Output voltage
and current OK
QUINT POWER
operating, but:
? Error at the load
QUINT POWER
not operating,
because:
max.
30 VAC/DC, 1 A
? Current
consumption
greater than
I BOOST
? Output short
circuit
? No mains
voltage present
? Primary side
fuse is blown
? Device is faulty
Figure 12
Electrically Isolated Contact (Figure 12)
When opened, the electrically isolated signal contact
indicates that the output voltage has fallen more than
10% below the set value. Signals and ohmic loads up
to a maximum of 30 V and currents up to a maximum
of 1 A can be switched.
With heavy inductive loads, e.g., a relay, a suitable
protective circuit (e.g., free-wheeling diode) is required.
Output 12V DC
Active Signal Output (Figure 13)
13
14
+ + – –
The 12 V DC signal is between the "DC OK" and "–"
connection terminal blocks and can be loaded with
40 mA maximum. This signal output indicates that the
output voltage has fallen more than 10% below the set
value when "active high" changes to "low".
The DC OK signal is isolated from the power output.
This ensures that a separate supply does not enter
from devices connected in parallel.
The 12 V DC signal can be connected directly to a
logic input for evaluation.
12 V DC
max. 40 mA
DC OK
Figure 13
PHOENIX CONTACT page 8 of 10
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