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9
Device connection terminal blocks
For the necessary connection parameters for the
connection terminal blocks, refer to the technical
data section.
9.1
Input
The power supply is connected on the primary side via the
Input +/- connection terminal blocks.
9.2
Protection of the primary side
Installation of the device must correspond to EN 61010
regulations. It must be possible to switch off the device using
a suitable disconnecting device outside the power supply.
The line protection on the primary side is suitable for this
(see technical data section).
Protection
Figure 12
Pin assignment for DC supply voltage
+
-
DC applications require upstream installation of a fuse that
is permitted for the operating voltage.
9.3
Output
By default, the power supply is pre-set to a nominal output
voltage of 24 V DC.
The output voltage is adjusted using the potentiometer.
9.4
Protection of the secondary side
The power supply is electronically short-circuit-proof and
no-load-proof. In the event of an error, the output voltage is
limited
If sufficiently long connecting cables are used,
fuse protection does not have to be provided for
each individual load.
If each load is protected separately with its own
protective device, the selective shutdown in the
event of a fault enables the system to remain
operational.
110257_en_00
Input DC 9...32 V
+
-
-
+
QUINT4-PS/12-24DC/24DC/1.3/SC
10
Output characteristic curves
The U/I output characteristic curve is optimized for the
following applications:
–
When supplying loads with high switch-on currents,
such as motors. The dynamic boost of the power supply
supplies up to 200% of the nominal power for 5 s. This
ensures that sufficient reserve energy is available;
overdimensioning of the power supply is not necessary.
–
For system extension. With the static boost, up to
125% of the nominal output power is available for a
sustained period (up to 40°C).
–
For fast energy storage charging (e.g., of batteries) to
supply a wide range of loads. The power supply
operates in the nominal operating range. Energy supply
to the load is ensured.
Figure 13
U/I output characteristic curve
U
N
0
I
Dyn. Boost
0
I
I
N
Stat. Boost
100%
125%
5s
t [s]
PHOENIX CONTACT
5s
200%
22/32
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