Omron NX-ID5442 User Manual

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7 Digital Output Units
NX-series Digital I/O Unit User’s Manual (W521)
7-6 Precautions when Using the Relay Output Units
7
7-6 Precautions when Using the Relay
Output Units
This section describes precautions when using the Relay Output Units.
The service life of Relay Output Units depends on the type of load, contact current and ambient temper-
ature.
Use the following diagrams to calculate the relay service life based on the operating conditions, and
replace the NX Unit before the end of its service life.
 Contact Current vs. Service Life Characteristic
Precautions for Correct Use
The above chart shows the life characteristics for individual relays. Do not exceed the specifi-
cations of the Relay Output Units. If a switching capacity exceeding the specifications is used,
the reliability and life expectancy of other parts will be reduced and the NX Unit may malfunc-
tion.
Relay Service Life
Service life (
×10 times)
4
Switching frequency: 20 operations/minute
500
300
200
100
50
30
20
5
3
2
1
105321
10
0.50.30.20.1
Contact current (A)
Service life curve
24 VDC/250 VAC
Resistance loads
24
VAC

Omron NX-ID5442 Specifications

General

Model	NX-ID5442
Type	Digital Input Module
Number of Inputs	16
Input Voltage	24 V DC
Isolation	Photocoupler isolation
Operating Temperature	0 to 55 °C
Storage Temperature	-25 to 70 °C
Shock Resistance	150 m/s²
Protection Class	IP20
Mounting Type	DIN Rail
Vibration Resistance	10 to 57 Hz, 0.075 mm
Response Time	1 ms max.
Humidity	10% to 95% (with no condensation)