¡
Life expectancy (R(t)=90%) of fan depends on use conditions as
shown in Fig.4.7.
Life expectancy of fan [H
]
Ambient temperature[
C
]
40
30
50
60
70
80
500,000
100,000
10,000
Io=50%
Io=100%
Fig.4.7 Life expectancy of fan
¡
Warranty
Please see the following table for warranty. The warranty period
is 5 years maximum.
Table.4.3 Warranty
Mounting
Cooling
method
Average ambient
temperature
Warranty [years]
Io = 50%
Io = 100%
All
direction
Forced air cooling
(internal fan)
Ta = 35
C
or less
5
5
Ta = 50
C
3
3
Ta = 70
C
1
-
5 Others
5.1 Output Current Monitor
¡
You can monitor an output current by measuring a voltage be-
tween the terminal CB and COM.
¡
Fig.5.1 shows the relationship between the voltage of the terminal
CB and the output current.
The output current shown in Fig.5.1 should be used only as a
guide.
Voltage of CB [V]
Load factor [%]
Load factor :
Output current
Rated current
1
0
0
20
40
60
80
100
2
3
4
5
Fig.5.1 Load factor conversion graph
Note:
¡
Careful wire connection is needed to avoid a malfunction caused
by noise.
¡
Use a measuring instrument which has 500k
W
input impedance
or more.
¡
Do not short between CB and COM because of possibility of fail-
ure.
5.2 Auxiliary Power (AUX)
¡
The power supplies can generate an auxiliary power (AUX: 12V
0.15A) from CN1/CN2 to provide for remote ON/OFF and attached
circuits.
¡
AUX circuit is isolated from other (input, output, FG, RC, WRN
and PG) circuits.
¡
Please do not draw a current of 0.15A or higher from the auxiliary
power because doing so could damage the internal circuits or
cause malfunction.
When you connect a DC-DC converter, a current a few times
higher than normal current may fl ow at start-up. Please check the
current.
5.3 External Capacity
¡
When a capacitor with large capacity is connected to the load
side, a power supply may stop or start hunting. Please contact us
for details.
5.4 External Component (EMI/EMC Filter)
¡
You can have the power supplies comply with FCC Part 15 class
B and CISPR22-B, EN55011-B, EN55022-B, VCCI-B by connect-
ing an external EMI/EMC Filter.
Recommended EMI/EMC Filter
NAC-20-472
(COSEL)
5.5 Ground
¡
When installing the power supply with your unit, ensure that the
input FG terminal is connected to safety ground of the unit.
AC-DC Power Supplies Enclosed type
Instruction Manual
FETA-12
FETA
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2013/09/09 14:28:40
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