14
Switch Mode Power Supply
S8VS
■
Maintenance Forecast
(S8VS-
@@@
24A
@
)
Displays when the maintenance forecast has reached the set value.
■
Indication and Output
When the product is purchased, “
ful
” will be indicated. As electro-
lytic capacitors deteriorate, indication changes to “
hlf
”. “
ful
” will be
indicated for the maintenance forecast display for approximately one
month after the Power Supply is first turned ON. The accumulated
value will then be displayed depending on the ambient conditions
thereafter. (However, the “
hlf
” indication may not appear, depending
on the usage environment and the set value for maintenance fore-
cast.)
S8VS-06024A:
After the remaining time to maintenance is reduced to less than two
years, indication automatically changes to a value, which decreases
from “
1.5
” to “
1.0
” to “
0.5
” to “
0.0
” (year) as the running hours
increase. If the remaining time becomes less than 0.5 year, an alarm
(
a02
) and “
0.0
” are indicated alternately.
S8VS-09024A
@
/S8VS-12024A
@
,
S8VS-18024A
@
/S8VS-24024A
@
:
If the maintenance forecast setting L (which can be set arbitrarily
from 0.0 to 5.0 years in 0.5-year steps) is set to a value larger than
two years, the indication automatically changes to a value (L - 0.5)
after the remaining time to maintenance is reduced to the set years,
and an alarm (
a02
) and the remaining time are indicated alternately.
If the setting is less than 2.0 years, the indication changes to a value
(1.5) after the remaining time becomes less than two years, and after
the remaining time becomes less than the set time, an alarm (
a02
)
and the remaining time (L - 0.5) are indicated alternately.
If the alarm (
a02
) and a numeric value are indicated alternately, a
transistor ((12) maintenance forecast output terminal (Yrs)) will turn
OFF to indicate the need for maintenance. (The transistor turns OFF
when the maintenance forecast time is reached, i.e., there will be no
continuity between (12) maintenance forecast output terminal (Yrs)
and (13) alarm output common terminal.)
Note: 1.
The remaining time to maintenance is based on continuous
operation, not including the time when the power supply is
turned OFF.
2.
“
ful
” will be indicated until approximately one month of
time is accumulated to estimate the speed of deterioration
and the output will remain ON (continuity between (12)
maintenance forecast output terminal (Yrs) and (13) alarm
output common terminal).
3.
For details on the display, refer to
Relationship between In-
dication Value and Outputs of Set Value
under
Maintenance
Forecast Monitor Function.
Operation
Mode
Output
voltage
Maintenance
forecast
monitor
Remaining time
until replacement
The maintenance forecast
has reached the set value.
Output
current
Peak-hold
current
(See note.)
Note:
This indicator alternately
displays alarm ( )
and the maintenance
time until replacement.
In the case that the
remaining time is
reduced to smaller
than 0.5 year and
an alarm is issued.
Содержание S8VS - MODEL 15-30-60-90-120-180-240W
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