QUINT4-PS/12-24DC/24DC/1.3/PT
110258_en_00
PHOENIX CONTACT
22/31
11 Boost currents
The power supply provides the static boost (I
Stat. Boost
) for a
sustained load supply or the time-limited dynamic boost
(I
Dyn. Boost
).
11.1 Static Boost
For system expansion purposes, the sustained static boost
(I
Stat. Boost
) supports the load supply with up to 125 % of the
nominal current of the power supply. The static boost is
available at an ambient temperature of up to 40 °C.
Figure 14
Performance characteristic in static boost
11.2 Dynamic Boost
Dynamic boost (I
Dyn.Boost
) delivers up to 200% of the power
supply nominal current to supply high loads. This temporary
power supply to the load lasts a maximum of 5 s at an
ambient temperature of up to 60°C.
Figure 15
Basic curve of the dynamic boost process
Use the following tables to determine the required recovery
time (t
Pause
) at the maximum dynamic boost current (I
Dyn.
Boost
) based on the following values:
– I
Base Load
– Duration of the boost current (t
Dyn. Boost
)
– Ambient temperature (40 °C or 60 °C)
11.2.1 Recovery times at an ambient temperature of
40 °C
Figure 16
Required recovery times at ≤ 40°C
11.2.2 Recovery times at an ambient temperature of
60 °C
Figure 17
Required recovery times at ≤ 60°C
T [°C]
A
P[
W
]
Out
40
60
70
P
Dyn. Boost
P
Stat. Boost
P
N
100%
125%
200%
75%
-25
I[
A
]
Out
I
Dyn.Boost
t [s]
I
Base Load
t
Dyn.Boost
t
Dyn.Boost
t
Pause
If a current that is lower than the maximum
available dynamic boost current (I
Dyn.
Boost
) is
required for the same period, the recovery time
may (t
Pause
) decrease.
1,8
5,4
3,6
7,2
9
3
6
9
12
15
2,2
4,5
6,7
9
11,5
4,5
9
9
18
13,5
27
18
36
22,5
45
5
1
2
3
4
2,6
2,6
2,6
2,6
2,6
0,33
0,65
0,98
1,3
0,0
t
[s]
P
ause
I
Based Load
I
Dyn. Boost
[A]
[A]
t
Dyn. Boost
[s]
3
9
6
12
15
6
12
18
24
30
4
8
12
16
20
12
60
24
60
36
60
48
60
60
60
5
1
2
3
4
2,6
2,6
2,6
2,6
2,6
0,33
0,65
0,98
1,3
0,0
t
[s]
P
ause
I
Based Load
I
Dyn. Boost
[A]
[A]
t
Dyn. Boost
[s]
