H3DK Datasheet, PDF (23/30 Pages) Omron Electronics LLC – Solid-state Timers

Connections
■ Block Diagrams
H3DK-H
AC (DC) input
Indicator circuit
Time specification
switches
Power supply
circuit
Oscillation circuit
Counting circuit
Output circuit
H3DK-H
■ Terminal Arrangement
H3DK-H
A1 15
R1
15
18 16
Power
interruption
detection circuit
Nomenclature
H3DK-H
Front View
Time range switch
(S Series: ×0.1 or
×1, L Series: ×1 or
×10)
Power indicator
(green) (Lit while
the power is ON.)
18 16 A2
(DIN notation)
15
A1
A2
16 18
Note 1: The above figure shows the terminal ar-
rangement for a 24 to 48-VAC/DC model.
Models with 100 to 120-VAC or 200 to
240-VAC power input do not have a DC
input.
Note 2: The power supply terminals do not have
polarity.
Bottom View
User label
attachment location
Terminal block
Main dial
(See notes 1 and 2.)
(for setting the time)
Note 1. Use solid wire (2.5 mm² max.) or fer-
rules with insulative sleeves to connect
to the terminals.
To maintain the withstand voltage after
connecting the terminals, insert no
more than 8 mm of exposed conductor
into the terminal.
Using Solid Wire
(2.5 mm² Max.)
Using Ferrule with
Insulative Sleeve
8 mm max.
8 mm max.
Recommended Ferrules
Phoenix Contact
• AI@@@ Series
• AI-TWIN@@@ Series
Note 2. Screw Tightening Torque
Recommended torque: 0.49 N·m
Maximum torque: 0.98 N·m
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