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Switch Mode Power Supply
S8VS
23
Do not use the Power Supply in locations subject to direct sunlight.
Do not use locations where liquids, foreign matter, or corrosive gases
may enter the interior of products.
S8VS-
@@@
24A
@
Models only
Satisfy the following conditions when storing the Power Supply for
long periods of time to maintain its remaining service life function.
•
When storing for more than three months, store within an ambient
temperature range of
−
25 to +30°C and the humidity range of 25%
to 70%.
Periodic Check (S8VS-09024
@@
,
S8VS-
12024@@
,
S8VS-18024@@
and S8VS-
24024
@@
only)
It may take from several years to more than 10 years under general
operating conditions for the power supply to output the maintenance
forecast monitor alarm (S8VS-
@@@
24A
@
). The total run time
monitor (S8VS-
@@@
24B
@
) may be a similar number of years as the
maintenance forecast monitor according to some settings. During
operation over an extended period of time, periodically check if the
maintenance forecast monitor output ((12)Yrs) or total run time
monitor output ((12)kh) is correctly functioning by the following
procedure.
1.
Select the operation mode.
2.
Check that the output ((12)Yrs/kh) is turned ON (with continuity
between (12) and (13)).
3.
In the operation mode, press and hold the Down Key
D
(10) and
the Mode Key
M
(8) simultaneously for at least three seconds.
The main display (6) changes to “
a02
.”
An inactive output ((12)Yrs/kh) (no continuity between (12) and
(13)) in the “
a02
” indication indicates the correct function.
4.
Release keys to return to the regular state.
Note:
DC output stays ON during the periodical check.
Overcurrent Protection
Internal parts may possibly deteriorate or be damaged if a
short-circuited or overcurrent state continues during operation.
Internal parts may possibly deteriorate or be damaged if the Power
Supply is used for applications with frequent inrush current or over-
loading at the load end. Do not use the Power Supply for such appli-
cations.
Alarm Output (S8VS-09024
@@
,
S8VS-12024
@@
, S8VS-18024
@@
,
S8VS-240
24@@
Only)
When using the alarm output, sufficiently consider the maximum
ratings, residual voltage, and leakage current.
Transistor output: Sinking for S8VS-
@@@
24
@
Models
Sourcing for S8VS-
@@@
24
@
P Models
30 VDC max., 50 mA max.
ON residually voltage: 2 V max.
OFF leakage current:
0.1 mA max.
Charging the Battery
If a battery is to be connected as the load, mount an overcurrent
limiting circuit and an overvoltage protection circuit.
Dielectric Strength Test
If a high voltage is applied between an input and the case (FG), it will
pass though the LC of the built-in noise filter and energy will be
stored. If the high voltages used for dielectric strength testing are
turned ON and OFF with a switch, timer, or similar device, impulse
voltage will be generated when the voltage is turned OFF and
internal parts may possibly be damaged. To prevent the generation
of impulse voltages, reduce the applied voltage slowly with a variable
resistor on the test device or turn the voltage ON and OFF at the
zero-cross point.
Inrush Current
When two or more Power Supplies are connected to the same input,
the total current is the sum of the currents for each Supply. Select
fuses and circuit breakers giving sufficient consideration to the fusing
or operating characteristics so that fuses will not burn and breakers
will not break due to inrush current.
Output Voltage Adjuster (V.ADJ)
The output voltage adjuster (V.ADJ) may possibly be damaged if it is
turned with unnecessary force. Do not turn the adjuster with
excessive force.
After completing output voltage adjustment, be sure that the output
capacity or output current does not exceed the rated output capacity
or rated output current.
15-W, 30-W Models
If the output voltage is set to a value less than
−
10%, the undervoltage
alarm function may operate.
60-W, 90-W, 120-W, 180-W, and 240-W Models
If the output voltage is set to a value less than 20 V (the factory
setting), the undervoltage alarm function may operate.
1
13
12
11
2
4
5
8
9
7
6
10
3
Содержание S8VS - MODEL 15-30-60-90-120-180-240W
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