Solid-state Star-delta Timer H3DE-G B-73
Timers
Operation
■ Basic Operation
Time Unit Setting
The star-delta transfer time is set to 0.05, 0.1, 0.25 or 0.5 with the
star-delta transfer time selector on the lower-right side of the front
panel and the set value appears in the star-delta transfer time display
window below the selector.
Time Scale Selection
The star operation time scale selector on the upper-left side of the
front panel can be set to 1 or 10 as a magnification.
Time Setting
The operation time of the Timer is set with the time setting dial.
■ Timing Charts
Note: The reset time requires a maximum of 0.5 s.
Nomenclature
Star-delta transfer time selector
Star-delta transfer time display
window
Time setting dial
Star operation time
scale display window
Star operation time
scale selector
0.5 s
Power (A
1
and A
2
)
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Star contact
15 and 18
(star indicator)
Star contact
15 and 16
Delta contact
25 and 28
(delta indicator)
Delta contact
25 and 26
t
1
: Star operation time setting
t
2
: Star-delta transfer time
Star operation indicator (green)
Delta operation indicator (orange)
Time setting dial (for setting star operation time)
Star-delta transfer time selector
Star-delta transfer time display window
Time scale display window
Nameplate for user use (20 x 5.4 mm white panel)
(Front View)
Star operation time scale selector
(select 1 or 10)
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