12
TDK-Lambda
HWS
30A-150A/ME
Series
INSTRUCTION MANUAL
7. The life expectancy
The life of the power supply depends on the life of the built-in aluminum electrolytic capacitor.
The life is described in reliability data.
The life of the aluminum electrolytic capacitor varies depending on the method of mounting the power supply, the
load current, and the ambient temperature.
Please refer to "Electrolytic Capacitor Lifetime".
Please do not use the product which passed over the life expectancy.
There is a risk of unexpected output shutdown and specifications may not be satisfied.
Please contact us for maintenance or exchange the product which passed over the life expectancy.
8. External Fuse Rating
Refer to the following fuse rating when selecting the external input fuse.
Surge current flows when input turn on. Use slow-blow fuse or time-lug fuse.Fast-blow fuse can not be used.
Fuse rating is specified by inrush current value at input turn on.
Do not select the fuse according to actual input current (rms.) values.
HWS30A/ME-100A/ME
：
3.15A
HWS150A/ME
：
5A
9. Before concluding that the unit is at fault…
Before concluding that the unit is at fault, make the following checks.
(1)
Check if the rated input voltage is connected.
(2)
Check if the wiring of input and output is correct.
(3)
Check if the wire size is not too thin.
(4)
Check if the output voltage control (V.ADJ) is properly adjusted.
(5)
Check if the
remote sensing terminal
is not opened.
The output will rise and OVP may be triggered
.
(6)
Check if the output current and output power does not over specification.
(7)
Audible noise can be heard when input voltage waveform is not sinusoidal wave.
(8)
Audible noise can be heard during Dynamic-Load operation.
(9)
Ensure that a large capacitor is not connected on the output side.
Please use within maximum capacitance shown below.
If connecting more than the following capacity,conditioning is needed.Please contact us for details.
Maximum external capacitance
MODEL
5V
12V
15V
24V
48V
HWS30A/ME,HWS50A/ME
10,000uF
5,000uF
2,000uF
500uF
HWS100A/ME,HWS150A/ME
10,000uF
5,000uF
1,000uF
10. Warranty Period
This product is warranted for a period of 5 years from the date of shipment.
For damages occurring at normal operation within this warranty period, repair is free of charge.
