S8VK-R
4
Engineering Data
Derating Curve
Mounting
Combinations with the S8VK-G
Power Boost Function
This function is possible when used in combination with S8VK-G (All
Models).
Power Boost is a function that can output the temporary repeated
boost current larger than the rated current.
However, it should meet the following four Boost current conditions.
1. Time that the boost current flows: t1
2. The maximum value of the boost current: lp
3. The average output current: lave
4. The time ratio of the boost current flow: Duty
Note: Boost current conditions
•
Do not allow the boost current to continue for more than 10
seconds.
Also, do not let the duty cycle exceed the boost current conditions.
These conditions may damage the Power supply.
•
Ensure that the average current of one cycle of the boost current
does not exceed the rated output current.
This may damage the Power Supply.
•
Lessen the load of the boost load current by adjusting the ambient
temperature and the mounting direction.
Power supply
model
Redundant unit model
Redundancy
Higher capasity
S8VK-G015
@@
S8VK-R10
S8VK-R10
S8VK-G030
@@
S8VK-G060
@@
S8VK-G12024
S8VK-G24024
S8VK-R20
S8VK-G24048
S8VK-R20
S8VK-G48024
S8VK-G48048
Load r
atio (%)
Ambient temperature (°C)
A
B
C
−
40
−
25
−
10 0 10 20 30 40 50 60 70 80
120
100
80
60
40
20
0
A: Standard mounting
B: Standard mounting, when contact mounted with S8VK-G
60°C and over: the derating is 2.5%/°C (when contact mounted
with S8VK-G)
C: Face-up mounting
50°C and over: the derating is 1.25%/°C
(B) Contact Mounting
(C) Face-up mounting
(A) Standard (Vertical) mounting
S8VK-R
POWER SUPPLY
(S8VK-G)
[A]
Ip: Boost current
Rated current
lave: Average current
t2
t1
output current
•
t1
•
Ip
•
lave
≤
10 s
≤
Rated boost current
≤
Rated current
Duty=
t1 + t2
t1
× 100 [%]
≤
30%
