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QUINT-PS-100-240AC/24DC/10
Temperature Response
Redundancy Operation
I BOOST
I N
I N
+ -
I N
+ -
+ -
+ -
0
0 20 40 60
Ambient operating temperature [ ° C]
Figure 14
Temperature response
Figure 15
Σ = I N
Redundancy operation
Redundant circuits are suitable for supplying systems,
At an ambient operating temperature of up to +40 ° C, the
device continuously supplies the I BOOST output current.
The device can supply a nominal output current of I N up to
an ambient operating temperature of +60 ° C. The output
power must be decreased by 2.5% per Kelvin temperature
increase for ambient operating temperatures over +60 ° C.
At ambient operating temperatures above +70 ° C or in the
event of a thermal overload, the device does not switch off.
The output power is decreased to such an extent that
device protection is provided. Once the device has cooled
down, the output power is increased again.
Parallel Operation
which place particularly high demands on operational
safety.
If a fault occurs in the primary circuit of the first power
supply unit, the second device automatically takes over the
entire power supply, without interruption, and vice versa.
For this purpose, the power supply units to be connected in
parallel must be large enough that the total current
requirements of all loads can be fully met by one power
supply unit.
External decoupling diodes are required for
100% redundancy
(QUINT-DIODE/40, Order No. 29 38 96 3).
+ -
Devices of the same type can be connected in parallel to
increase both redundancy and power. The default setting
does not have to be adjusted.
A maximum of five devices can be connected
in parallel.
If the output voltage is adjusted, an even current distribution
can be ensured by precisely setting all power supply units
Increasing Power
I N I N
+ -
+ -
+ -
Σ = 2 * I N
that are operated in parallel to the same output voltage.
To ensure symmetrical current distribution we recommend
Figure 16
Increasing power
that all cable connections from the power supply unit to the
DIN rail are the same length and have the same cross
section.
Depending on the system, for parallel
connection of more than two power supply
units a protective circuit should be installed at
each individual device output (e.g., decoupling
diode or DC fuse). This prevents high return
currents in the event of a secondary device
fault.
? PHOENIX CONTACT 12/2005
The output current can be increased to n x I N where n is the
number of devices connected in parallel.
Parallel connection for increasing power is used when
extending existing systems. A parallel connection is
recommended if the power supply unit does not cover the
current consumption of the most powerful load.
Otherwise, the loads should be divided over independent
individual devices.
A maximum of five devices can be connected
in parallel.
100030_04_en
PHOENIX CONTACT
11
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