Omron H3CR-A Manual page 98

H3DR-G
Operation
Basic Operation
Time Unit Selection
The time required for switching (0.05, 0.1, 0.25, or 0.5 s) from the
star operation to the delta operation can be selected with the star-
delta transfer time selector at the lower-right corner of the front pan-
el.
Block Diagram
AC (DC) input
Power
supply
circuit
I/O Functions
Inputs
Outputs Control output
98
Star-delta transfer time selector
Star-delta transfer time window
Star Star-delta
operation transfer
time range time
selector selector
Star opera- Star opera- Star-delta
tion time tion time transfer
oscillation counting time oscilla-
circuit circuit tion circuit
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If the time reaches the value set with the time setting dial, the star operation output will be
turned OFF and there will be delta operation output after the set star-delta transfer time has
elapsed.
Time Scale Selection
The scale (1 or 10) is selected with the time scale selector at the up-
per-left corner of the front panel and appears in the window above
the selector.
Star operation time scale window
Star operation time scale selector
Time Setting
Use the main dial to set the operation time.
The fine-tuning dial is useful when delicate or more accurate adjust-
ment is required.
Star-delta
transfer
time
counting
Output
circuit
circuit
Indicator
circuit
Star Delta
operation operation
indicator indicator
H3DR-G
Star operation
Delta operation