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.)