H3CA8DC24 Datasheet, PDF (10/16 Pages) Omron Electronics LLC – DIN-sized (48 x 48, 45 x 75 mm) Timer with Digital Setting and LCD Display

Installation
■ Terminal Arrangement
H3CA-A
H3CA-FA
H3CA
** * *
(+) or
(-)
(+) or
(-)
(See
note
2)
(+) or (-)_{* * * *}
(See
note
2)
Note: 1. *C: Check: 3-4
*G: Gate: 3-5
*S: Start: 3-6
Note: 1. *C: Check: X-E1
*R: Reset: 3-7
*G: Gate: X-D1
2. Conventional time-limit contacts are symbolized as .
However, the contacts of H3CA-A are symbolized as
because timer has 8 operation modes.
*S: Start: X-C1
*R: Reset: X-B1
2. Conventional time-limit contacts are symbolized as .
However, the contacts of H3CA-FA are symbolized
as because timer has 8 operation modes.
■ Input Connections
Signal Inputs
Connect the start input contact between terminals C and F, the
reset input contact between terminals C and G, the gate input
contact between terminals C and E, and the check input contact
between terminals C and D.
Solid-state Signal Inputs
Connect the start input transistor between terminals C and F, the
reset input transistor between terminals C and G, the gate input
transistor between terminals C and E, and the check input
transistor between terminals C and D.
For each signal input contact, use a gold-plated contacts with high
reliability. Be sure that these input signals satisfy the following
requirements: a resistance of 1 kΩ (max.) and a residual voltage of 1
V (max.) when the contact is made.
For signal input, use an open collector type transistor with
characteristics: V_CEO = 20 V min., V_CE(S) = 1 V max., IC = 50 mA min.
and I_CBO = 0.5 µA max. In addition, be sure that the input signals
satisfy the following requirements: a resistance of 1 kΩ (max.) and a
residual voltage of 1 V (max.) when the transistor is ON, and a
resistance of 200 kΩ (min.) when the transistor is OFF.
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