-7-
TDK-Lambda
VS-E Series
Instruction Manual
6. Wiring Method
(1)
The output load line and input line shall be separated each other and twisted individually to improve noise.
(2)
Use all lines as thick and short as possible to made lower impedance.
(3)
Noise can be reduced by attaching a capacitor to the load terminals.
(4)
For safety and EMI considerations, connect
terminal of input connector and mountable Frame Ground of VS-E series to ground
terminal equipment firmly.
7. 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.
Please use slow-blow or time-lag type fuse, not fast-blow fuse. Fuse rating is specified by in-rush current value at line turn-on. Do not select
the fuse according to input current (RMS.) values under the actual load condition
VS50E
: 4.0A
VS75E
: 5.0A
VS100E : 5.0A
VS150E : 6.3A
8. Before concluding that the unit is at fault
(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 thickness is enough.
(4)
Check if the output current and output wattage dose not over specification.
(5)
Check if the output voltage control (V.ADJ) is properly adjusted. OVP might be triggered and output is shut down.
(6)
Audible noise can be heard when input voltage waveform is not sinusoidal.
(7)
Ensure that a large capacitor is not connected on the output side. Please use within maximum capacitance shown below.
Maximum external capacitance
MODEL
3.3V
5V
12V
15V
24V
48V
VS50E
10,000uF
5,000uF
2,000uF
500uF
VS75E
・
VS100E
・
VS150E
5,000uF
30,000uF
9. 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.
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.
