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3-Phase Power Supply, Primary Switch Mode for Universal Use – QUINT 48 V DC/10 A
Signal Loop (Figure 14)
The two signal outputs mentioned above can be
combined easily.
Example: Monitoring two devices
Use the active alarm output of device 1 and loop in
the electrically isolated alarm output of device 2. In the
event of an error, a group error message is generated.
It is possible to loop any number of devices.
Device 1
Output 24V DC
Device 2
Output 24V DC
This signal combination saves on wiring costs and
logic inputs.
13
14
+ + – –
13
14
+ + – –
DC OK LED
The green DC OK LED enables local function
evaluation in the control cabinet.
Normal operation of the power supply
LED ON
The output voltage has fallen by more than 10%.
LED
There is a secondary load short circuit or overload
? ashing
24 V DC
40 mA
DC OK
LED OFF
outside the POWER BOOST area.
No mains voltage is present or there is a device fault.
Figure 14
7. Function
7.1. Output Characteristic Curve
At ambient temperatures T amb < +40°C (+104°F),
the device can continuously supply 13 A with a 48 V DC
output voltage (P out = 620 W).
With heavy loads, the working point demonstrates
the U/I characteristic curve shown in Figure 14. The
U OUT
[ V ]
U N 48
< 60 ° C
480 W 620 W
< 40 ° C
output current is limited to I BOOST .
The secondary voltage is reduced until the short
circuit on the secondary side is removed.
The U/I characteristic curve ensures that both heavy
capacitive loads and devices with DC/DC converters
10
I N
13
I BOOST
I OUT
[ A ]
can be supplied by QUINT POWER in the input circuit
without any problems.
Connected fuses are reliably tripped. The selectivity
in your system con ? guration is ensured at all times.
7.2. Temperature Response
At an ambient temperature of up to +40°C (+104°F)
the device continuously supplies an output current of
13 A.
The device can supply a nominal output current of
10 A up to an ambient temperature of +60°C (+140°F).
The output power must be decreased by 2.5% per
Kelvin temperature increase for ambient temperatures
above +60°C (+140°F).
At ambient temperatures above +70°C (+158°F) or in
the event of a thermal overload, the device does not
switch off. The output power is decreased so low that
13
10
U OUT = 48 V
Figure 15
device protection is provided. Once the device has
cooled, the output power is increased again.
0
0
20
40
60
Ambient temperature [°C]
Figure 16
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