Omron H3CR-A Manual page 117

H3CA
Installation
Terminal Arrangement
H3CA-A
* * * *
(+) or
(--)
Note: 1. *C: Check: C--D
*G: Gate: C--E
*S: Start: C--F
*R: Reset: C--G
2. Conventional time-limit contacts are symbolized as
However, the contacts of H3CA-A 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 be-
tween terminals C and E, and the check input contact between ter-
minals 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 re-
quirements: a resistance of 1 k$ (max.) and a residual voltage of 1 V
(max.) when the contact is made.
(See
note
2)
(+) or
(--)
H3CA-FA
(+) or (--)
Note: 1. *C: Check: X-E1
*G: Gate: X-D1
*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.
Solid-state Signal Inputs
Connect the start input transistor between terminals C and F, the re-
set input transistor between terminals C and G, the gate input tran-
sistor between terminals C and E, and the check input transistor be-
tween terminals C and D.
For signal input, use an open collector type transistor with charac-
teristics: V = 20 V min., V
CEO
= 0.5 &A max. In addition, be sure that the input signals satisfy
I
CBO
the following requirements: a resistance of 1 k$ (max.) and a resid-
ual voltage of 1 V (max.) when the transistor is ON, and a resistance
of 200 k$ (min.) when the transistor is OFF.
* * * *
(See
note
2)
= 1 V max., IC = 50 mA min. and
CE(S)
H3CA
117