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3-Phase Power Supply, Primary Switch Mode for Universal Use – QUINT 48 V DC/10 A
6.6. Output (Figure 11)
The 48 V DC connection is made using the "+" and
"–" screw connections on the screw connection 2 . The
output voltage set upon delivery is 48 V DC.
The output voltage can be adjusted from 40 to
56 V DC on the potentiometer 5 .
O
In
Ad
42 ust
6V
Protecting the Secondary Side:
The device is electronic short-circuit-proof and idling-
proof. In the event of an error, the output voltage is
V
3
j
-5
DC
O
K
DC
OK
O
A
DC
K
u
+ t D
pu
+ C 8V
limited to a maximum of 60 V DC.
It should be ensured that all output cables are the
correct size for the maximum output current or have
separate fuse protection.
The secondary side cables should have large cross
sections to keep voltage drops on the cables to a
minimum.
4
13
3
14
O
O
t
4
– 1 0 A
–
6
U
2
Figure 11
6.7. 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.
Electrically isolated contact
Output 48V DC
Green "DC OK" LED
ON
Flashing
OFF
Active signal output
Electrically isolated
U = 24 V
Closed
U = 0V
Open
U = 0V
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
QUINT POWER
QUINT POWER
and current OK
operating, but:
? Error at the load
? Current
consumption
greater than
I BOOST
? Output short
circuit
not operating,
because:
? No mains
voltage present
? Primary side
fuse is blown
? Device is faulty
60 V AC/DC
0.5 A, maximum
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 60 V and currents up to a maximum
of 0.5 A can be switched.
With heavy inductive loads, e.g., a relay, a suitable
protective circuit (e.g., free-wheeling diode) is required.
Active signal output
Output 48V DC
Active Signal Output (Figure 13)
The 24 V DC signal is between the "DC OK" and "-"
13
14
+ + – –
connection terminal blocks and can be loaded with
20 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 24 V DC signal can be connected directly to the
logic input for evaluation.
24 V DC
20 mA,
maximum
DC OK
Figure 13
PHOENIX CONTACT page 8 of 10
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