H3CRA300AC2448DC1248 Omron, H3CRA300AC2448DC1248 Datasheet - Page 21

• Manufacturer Part Number: H3CRA300AC2448DC1248
• Description: SOLID STATE TIMER-ANALOG SET
• Manufacturer: Omron

Specifications of H3CRA300AC2448DC1248

• Lead Free Status / RoHS Status: Compliant

Relationship between Input and Power
Supply Circuits (H3CR-A@/-A@S)
An appropriate input is applied to the input signal terminals of the
H3CR-A@/-A@S when one of the input terminals is short-circuited
with the common terminal (terminal 2) for the input signals. Never
use terminal 10 as the common terminal for this purpose, otherwise
the internal circuit of the Timer will be damaged.
Do not connect a relay or any other load between input terminals,
otherwise the internal circuit of the Timer will be damaged due to the
high-tension voltage applied to the input terminals.
Relationship between Input and Power
Supply Circuits (H3CR-AP)
Since the input circuit and the power supply circuit are configured
independently, the input circuit can be turned ON or OFF irrespective
of the ON/OFF state of the power supply.
It must be noted that a voltage equivalent to the power supply voltage
is applied to the input circuit.
Incorrect
Correct
AC or DC
power supply
AC or DC
power supply
AC or DC
power supply
AC/DC
power
supply
Input
contact
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
H3CR-AP
Ry
Input circuit
Input terminal
Input terminal
Input terminal
In the interest of product improvement, specifications are subject to change without notice.
5, 6, 7
G, S, R
5, 6, 7
G, S, R
5, 6, 7
G, S, R
Power supply
circuit
H3CR-A
H3CR-A
H3CR-A
2
10
10
2
2
10
If a relay or transistor is connected to two or more Timers, the input
terminals of those Timers must be wired properly so that they will not
be different in phase or the terminals will be short-circuited to one
another (refer to the figures below).
Common to All H3CR-A Models
With the H3CR-AP, input wires must be as short as possible. If the
floating capacity of wires exceeds 1,200 pF (approx. 10 m for cables
with 120 pF/m), the operation will be affected. Pay particular
attention when using shielded cables.
The H3CR-A@S transistor output is isolated from the internal
circuitry by a photocoupler. Therefore, either NPN or PNP output is
possible.
Incorrect
Correct
Contact or transistor for
external input signal
Contact or transistor for
external input signal
6
7
6
7
6
7
6
7
H3CR-AP
H3CR-AP
H3CR-AP
H3CR-AP
2
2
10
10
10
2
2
10
Short-circuit current
Short-circuit current
Power supply
H3CR-A
Power supply
21