Instruction manual

6 Others
6.1 Output current monitor
¿
PBA300F, 600F, 1000F, 1500F
¡
It is possible to know the output current to measure the voltage
between CB to -S in CN1 or CN2.
¡
The relation between CB voltage and load current is shown in
Fig.6.1.
Remarks :
Fig.6.1 is nominally, not guarantee.
Please ask to us if the characteristic of the other model is neces-
sary.
¡
Note the following when you measure the voltage of CB terminal.
-
Please note wiring so as not to malfunction because of the
noise.
-
Please use the input impedance of measurement equipment
must be 500k
W
or more.
-
Please note internal parts might be damaged when CB terminal
and -S terminal are short circuit.
¡
Derating curve depending on input voltage of PBA1500F is shown
in Fig.5.3.
5.3 Expectancy life and warranty
¡
Expectancy life
The expectancy life is as follows.
¿
PBA300F, 600F, 1000F, 1500F
¡
Regular exchange is necessary for the fan, because the life ex-
pectancy (R (t) =90%) of the fan depending on the use condition
is shown in Fig.5.4.
¡
Warranty
PBA50 - 150F :
The warranty is 5 years when average ambient temperature of
year is Ta=40
C
or less and load factor is average 50% or less.
However, the warranty is 3 years when average ambient tempera-
ture of year is Ta=50
C
or less and load factor is series 100%.
PBA300 - 1500F :
The warranty is 5 years if it is derating curve.
Unit type
Instruction Manual
A-28
PBA
Unit type
Instruction Manual
A-29
PBA
Fig.5.4 Life expectancy of fan
Fig.5.3 Derating curve depending on input voltage
(PBA1500F)
[AC V]
at AC100V
[%]
100
80
85 95
Load
Fig.6.1 Load current conversion graph(PBA1500F-5)
Voltage of CB terminal
0
-2
2
-4
-6
[V]
100 200 300
Load current
[A]
Ambient temperature[
C
]
[H]
Life expectancy of fan
4030 50 60 70 80
10,000
100,000
500,000
Installation
condition
Average ambient
temperature(year)
Load factor
50% 100%
PBA50F -
150F
(Installation A)
Ta=30
C
More than 10 years More than 10 years
Ta=40
C
More than 10 years 6 years
Ta=50
C
5 years 3 years
PBA300F -
1500F
Ta=40
C
7 years
*
7 years
*
Ta=50
C
6 years
*
5 years
*
It is a value to which the maintenance of the fan is required.