H3CA
H3CA
117
Installation
Terminal Arrangement
H3CA-A
H3CA-FA
(See
note
2)
(See
note
2)
* * * *
* * * *
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.
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.
(+) or
(--)
(+) or
(--)
(+) or (--)
(+
)o
r(
--
)
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.
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
CEO
= 20 V min., V
CE(S)
= 1 V max., IC = 50 mA min. and
I
CBO
= 0.5
&
A max. In addition, be sure that the input signals satisfy
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.
