Instruction manual
5.1 Installation method
¡
The screw should be inserted up to 6mm max from outside of the
power supply to keep a distance between inside parts and an iso-
lation.
5 Assembling and
Installation Method
¿
PBA50F, 75F, 100F, 150F
¡
When two or more power supplies are used by side, position them
with proper intervals to allow enough air ventilation. Ambient tem-
perature around each power supply should not exceed the tem-
perature range shown in derating curve.
¿
PBA300F, 600F, 1000F, 1500F
¡
Fans for forced cooling are built-in.
Do not block the ventilation at suction side (terminal block side)
and its opposite side.
Fix rmly, considering weight, though it can be used by the instal-
lation.
¡
Install the air lter so that the effect of cooling by the fan does not
decrease when the power supply is used in a dusty place.
5.2 Derating
¿
PBA50F, 75F, 100F, 150F
(1)Mounting method
(2)Derating curve
¡
Specications inside the hatched area, Ripple
-
Ripple Noise is
changed.
¡
Standard of cooling
Please use do to become below the temperature which the tem-
perature of Point A shows in Table 5. Point A is displayed on the-
chassis (Refer to External view).
Table 5
¿
PBA300F, 600F, 1000F, 1500F
¡
Derating curve depending on ambient temperature is shown in
Fig.5.2.
In the hatched area, the specications of Ripple and Ripple Noise
are different from other, refer to specications.
Unit type
Instruction Manual
A-26
PBA
Unit type
Instruction Manual
A-27
PBA
Fig.5.1 Mounting screw
Fig.5.2 Derating curve depending on
ambient temperature
Ambient temperature[
C
]
Load factor
[%]
80
70
80
90
100
30
40
50
60
70
71C
0
10
20
30 40 50 60- 20 - 10 200 10
Point A
Ambient temperature:50
C
Ambient temperature:71
C
PBA50F 72
C
or less 82
C
or less
PBA75F 83
C
or less 84
C
or less
PBA100F 87
C
or less 83
C
or less
PBA150F 89
C
or less 85
C
or less
2
1
2
1
C
CBA
Normal mounting