a
Chassis of
FETA series
Chassis of
customer system
Mounting Screw
Fig.4.1 Mounting screw
Table 4.1 Max penetration length
Mounting hole
a (Max penetration length)
Bottom
6mm max
Side
4.5mm max
¡
The power supplies have a built-in forced cooling fan. Do not
block ventilation at the suction side and its opposite side.
¡
If you use a power supply in a dusty environment, it can give a
cause for a failure. Please consider taking such countermeasures
as installing an air fi lter near the suction area of the system to pre-
vent a failure.
(a) Front side
(b) Rear side
Intake opening
Exhaust opening
Fig.4.2 Location of intake port and exhaust port
30mm min
30mm min
Fig. 4.3 Clearance of intake port and exhaust port
¡
When mounting the power supply with screws, it is recommended
that this be done as shown in Fig.4.4. If other methods are used,
be sure the weight of the power supply is taken into account.
-V
+V
Input
-V
+V
-V
+V
Input
Input
(A)
(B)
(C)
Fixed screw (3 pcs.)
Fixed screw
(3 pcs.)
Fixed screw (2 pcs.)
Fixed screw (2 pcs.)
Fig.4.4 Installation method
4.2 Derating
¡
Input Voltage Derating Curve
Input voltage derating curve is shown in Fig.4.5.
[AC V]
170
180
85
100
Load [%]
Fig.4.5 Input voltage derating curve
¡
Ambient Temperature Derating Curve
Derating curve depending on an ambient temperature is shown in
Fig.4.6.
*
Specifi cations for ripple and ripple noise changes in the shaded
area.
80
70
40
60
- 10
2
10
30
50
0
0
100
0
20
40
60
80
Load factor [%]
Ambient temperature [
C
]
Fig.4.6 Ambient temperature derating curve
4.3 Expected Life and Warranty
¡
Expected Life
Please see the following tables for expected life.
Table.4.2 Expected lifetime
Mounting
Cooling
method
Average ambient
temperature
Expected lifetime
[years]
Io = 50%
Io = 100%
All
direction
Forced air cooling
(internal fan)
Ta = 35
C
or less
6
5
Ta = 50
C
4
3
Ta = 70
C
2
-
*
This lifetime includes a built-in fan lifetime.
AC-DC Power Supplies Enclosed type
Instruction Manual
FETA-11
FETA
me̲feta1.indd 11
me feta1 indd 11
2013/09/09 14:28:40
2013/09/09 14:28:40
