INSTRUCTION MANUAL
ZWS240RC
Series
TDKLambda
<Page>
8. External Fuse Rating
Refer to the following fuse rating when selecting the external input fuse.
Surge current flows when input turn on. Use slowblow fuse or timelug fuse. Fastblow 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.
ZWS240RC : 6.3A
9. Before concluding that the product is at fault…
Before concluding that the product 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 output current and output power does not over specifications.
(6) Audible noise can be heard when input voltage waveform is not sinusoidal wave.
(7) Audible noise can be heard during DynamicLoad operation.
10. Warranty Period
Warranty Period applies for Standard Mounting (A) and the number of output ON/OFF is only once a day.
Do not exceed its derating of maximum load.
For damages occurring at normal operation within this warranty period, repair is free of charge.
Please contact our sales office for warranty in other mounting directions if required.
■
Convection Cooling
Mounting(A)
Following cases are not covered by warranty
(1) Improper usage like dropping products, applying shock and defects from operation exceeding specification of
the product.
(2) Defects resulting from natural disaster (fire, flood etc.).
(3) Unauthorized modifications or repair.
12/12
Ta (
o
C
)
100
0
50
L
oa
d
(%
)
40
80
10
