INPUT/OUTPUT RELAYS
FOR INTERFACE BETWEEN
THE CPU AND THE LOAD
I/O-RELAYS
UL File No.: E43149
CSA File No.: LR26550
• Input and output modules for interfacing between
CPU and external input devices or loads
IAC: AC input (yellow)
10
.394
43
1.693
OAC: AC output (black)
IDC: DC input (white)
ODC: DC output (red)
• Excellent transient noise immunity
• Breakdown voltage: 4,000 V between input and output
20.5
.807
• Zero-cross switching for reducing EMI
• LED operation indication types available
mm inch
EXAMPLE OF I/O SYSTEM CONSTRUCTION
Recently, the microcomputer shown in
the left has come into use, with a rapid
increase in the use of feedback control
for process controllers. As an input/out-
put interface relay, it represents a fast
responding interface with long life, noise-
less, PC board mounting facility, making
circuit design and manufacture simple,
and providing amplification of mainte-
nance with space saving. Our company’s
I/O relays have been grouped for use
with either AC or DC devices as AC out-
put type, AC input type, DC output type,
and DC input. In addition, the I/O use
relay is modularized identically, respond-
ing to the various load types for PC
board mounting. Because combinations
can be freely used, circuit design has
been greatly facilitated. Accordingly, the
above diagram of interface PC board
mounting is a practical construction
which can be used.
PC board
5 V DC
5 V DC
5 V DC
5 V DC
5 V DC
5 V DC
120 V AC
120 V AC
24 V DC
24 V DC
120 V AC
24 V DC
AC Output
module
AC
motor
AC intput
module
DC Output
module
DC
solenoid
Micro-computor
or logic circuit
DC Input
module
Limit switch
AC Input
module
DC Input
module
Temperature
controller
TYPICAL APPLICATIONS
1. Optimum for minicomputer and micro-
computer use, and for feed back control
process control systems.
Robot, NC machine, Automatic
Assembling machine.
2. Programmable controllers controls for
motors, solenoids and solenoid valves.
ORDERING INFORMATION
I
AC
4/15
A
L
Logic supply or
control voltage
Input or Output
AC or DC
Input or Output Voltage
Operation indication
Input
Output
Nil: No operation
indication
L: Operation
AC: AC input or
AC output
DC: DC input or
DC output
3/15: 3 to 15 V DC
4/15: 4 to 15 V DC
10/32: 10 to 32 V DC
Nil
A
80 to 140 V AC
3 to 32 C DC
75 to 125 V AC
3 to 60 V DC
I: Input module
O: Output module
75 to 250 V AC
10 to 200 V DC
indication
160 to 280 V AC
(Note) Standard packing: Carton: 20 pcs.; Case: 200 pcs.