B-26 Solid-state Twin Timer H3DS-F
Connections
■ Block Diagram
■ I/O Function
■ Terminal Arrangement
Note: 1. If voltage is applied to terminal B1, or if terminals A1 and B1 are shorted, the operating mode is switched to flicker-ON start mode. If these
terminals are disconnected, the mode switches to flicker-OFF start mode.
2. DC supply voltage does not require the designation of polarity.
AC (DC)
input
ON
indicator
(Orange)
OFF
indicator
(Green)
ON/OFF start
selector
Indicator
circuit
One-chip microcomputer
ROM RAM Clock
Time scale
selector
Output
circuit
Power
supply
circuit
Inputs Flicker-ON start operation begins when inputs are turned ON.
Outputs Control output Outputs are turned ON/OFF according to the time set by the ON-and OFF-time setting dial.
A1 15
15
18
18
16
16 A2
18 16 A2
15
L
18 16
B1
A1 15 B1
H3DS-FLC H3DS-FL
(See note 2.)
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