Omron NX-OD5256 User Manual

A - 47
Appendices
NX-series Digital I/O Unit User’s Manual (W521)
A-1 Data Sheet
A
A-1-3 Digital Output Units
Unit name Relay Output Unit Model NX-OC2733
Number of points 2 points, independent contacts External connection
terminals
Screwless clamping terminal block (8 ter-
minals)
I/O refreshing method Free-Run refreshing
Indicators TS indicator, output indicator Relay type N.O. + N.C. contact
Maximum switching
capacity
250 VAC/2 A (cosΦ = 1),
250 VAC/2 A (cosΦ = 0.4),
24 VDC/2 A,
4 A/NX Unit
Minimum switching
capacity
5 VDC, 10 mA
Relay service life
Electrical: 100,000 operations
*1
Mechanical: 20,000,000 operations
ON/OFF response time 15 ms max./15 ms max.
Dimensions 12 (W) ×100 (H) ×71 (D) Isolation method Relay isolation
Insulation resistance Between A1/3, B1/3 terminals and A5/7,
B5/7 terminals: 20 MΩ min. (
at 500 VDC)
Between the external terminals and func-
tional ground terminal: 20 MΩ min. (
at
500 VDC)
Between the external terminals and inter-
nal circuits: 20 MΩ min. (
at 500 VDC)
Between the internal circuit and the func-
tional ground terminal: 20 MΩ min. (
at
100 VDC)
Dielectric strength Between A1/3, B1/3 terminals and A5/7,
B5/7 terminals: 2300 VAC for 1 min at a
leakage current of 5 mA max.
Between the external terminals and the
functional ground terminal: 2300 VAC for
1 min at a leakage current of 5 mA max.
Between the external terminals and inter-
nal circuits: 2300 VAC for 1 min at a leak-
age current of 5 mA max.
Between the internal circuit and the func-
tional ground terminal: 510 VAC for 1 min
at a leakage current of 5 mA max.
Vibration resistance 10 to 55 Hz with amplitude of 0.5 mm Shock resistance
50 m/s
2
, 3 times each in X, Y, and Z
directions
I/O power supply
method
Supply from external source Current capacity of I/O
power supply terminal
Without I/O power supply terminals
NX Unit power con-
sumption
0.95 W max. Current consumption
from I/O power supply
No consumption
Weight 70 g max.
Circuit layout
Installation orienta-
tion and restrictions
Installation orientation: Possible in 6 orientations.
Restrictions: No restrictions
NO0 to NO1
NC0 to NC1
Internal circuits
Internal power
supply
NO0 and NO1 are normally open contacts, and NC0 and NC1 are normally close contacts.
You cannot replace the relay.
Terminal block
I/O power supply +
I/O power supply −
I/O power supply +
I/O power supply −
NX bus
connector
(left)
NX bus
connector
(right)
C0 to C1

Omron NX-OD5256 Specifications

General

Brand	Omron
Model	NX-OD5256
Category	I/O Systems
Language	English