TDK-Lambada HWS?HWS, User Manual, Page: 92 / 133

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・All specifications are subject to change without notice.
Instruction Manual
HWS
HWS HD
HWS ME
HWS-P
HWS
300, 600
7. Fan life expectancy
The Fan-life has limitation. Therefore, periodic maintenance by
exchanging the life-expired fan is required for the power supply.
The following fi gure shows the life of fan.
Fan exhaust temperature (℃)
Life expectancy (year)
Measurement point of fan exhaust temperature
Measuring point
Air Flow
P.S.
50mm
The diff erence between the intake temperature and the exhaust
temperature of the power supply at Io=100% :
HWS300: 4℃
HWS600: 8℃
Name of fan unit for replacement Applicable models Appearance Pin assignments Price
Fan unit for replacement
We have prepared an optional fan unit for replacement.
Ask us for replacement of the fan. This will be a charged service. If you are replacing the fan by yourself, note the following.
*1. Be careful in handling the fan unit so as not to cause an impact by dropping it or hitting it, etc.
*2. Shut down the input before starting the replacement operation.
*3. Check that there are no loose parts in connectors or harness tucking, etc.
*4. Safety standards (UL, CE, etc.) are not applicable.
300-FAN-01
HWS300
（ of standard
specifications ）
Open
Housing ＝ PAP-03-V-S (J.S.T.)
Contact ＝ SPHD-001T-P0.5 or
PSHD-002T-P0.5（J.S.T.）
Length of fan harness
＝ 55 ± 10mm
Pin No. Description
1 Power supply
2 Fan alarm
3 GND
Wind direction
600-FAN-01
HWS600
（
of standard
specifications
）
Open
Housing ＝ PAP-03-V-S（J.S.T.）
Contact ＝ SPHD-001T-P0.5 or
PSHD-002T-P0.5（J.S.T.）
Pin No. Description
1 Power supply
2 Fan alarm
3 GND
Wind direction
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 I/O terminal connection is properly tighten by
regulated torque.
(4) Check if the wire thickness is enough.
(5) Check if the output voltage control (V.adj) is properly
adjusted. OVP might be trigged and output is shut down.
(6) If use function of the Remote ON/OFF control, check if the
Remote ON/OFF control connector is not opened.
If in open condition, power supply will not output.
(7) Check if the built-in FAN is not stopped. Is FAN stopped by
something irregulars or etc?
If FAN stops, the PF signal turn High level and OTP might
be activated.
(8) Power supply has ventilating holes on the front and back
panels. Check if there is any irregulars or dust, etc.
(9) Is the chassis of power supply hot abnormally? The output is
shut down by OTP operation.
Please re-input after the unit to cool down suffi ciently.
(10) Check if the output current and output wattage does not
exceed specifi cation.
(11) Audible noise can be heard when input voltage waveform is
not sinusoidal.
(12) Audible noise can be heard during dynamic load operation.
8. Before concluding that the unit is at fault…
6. External Fuse Rating
Refer to the following fuse rating when selecting the external
fuses that are to be used on input line. Surge current flows
when line turns on. Use slow-blow or time-lag type fuse, not
fast-blow fuse. Fuse rating is specifi ed by in-rush current value
at line turn-on. Do not select the fuse according to input cur- rent (RMS.) values under the actual load condition.
HWS300 : 10A
HWS600 : 15A
9. Range of free warranty
This product is warranted for a period of 5 years from the date
of shipment. As for the breakdown under a normal use during
free warrantee term, repair is at free of charge. However, the
built-in FAN motor replacement is charged.
Please contact to our sales offi ce for FAN replacement.
Conditions of usage at the free of charge warrantee are as
follows.
(1) Average operating temperature (ambient temperature of the
power supply unit) is under 40ºC
(2) Average load factor is 80% or less.
(3) Installation method : Standard installation. However, the
maximum rating is within the output derating.
Following cases are not covered by warranty.
(1) Improper usage like dropping products, applying shock and
defects from operation exceeding specifi cation of the units.
(2) Defects resulting from natural disaster (fi re, fl ood).
(3) Unauthorized modifi cations or repair by the buyers defects
not cause by TDK-Lambda.
10. Option
Length of fan harness ＝ 70 ±10mm
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