Omron NX-ID - Page 330

Appendices
A - 80
NX-series Digital I/O Unit User’s Manual (W521)
Relay Output Units (Screwless Clamping Terminal Block, 24 mm
Width)
Unit name Relay Output Unit Model NX-OC4633
Number of points 8 points, independent contacts External connection
terminals
Screwless clamping terminal block (8 ter-
minals × 2)
I/O refreshing method Free-Run refreshing
Indicators TS indicator, output indicator Relay type N.O. contact
Maximum switching
capacity
250 VAC/2 A (cosΦ = 1), 250 VAC/2 A
(cosΦ = 0.4), 24 VDC/2 A,
8 A/Unit
Minimum switching
capacity
5 VDC, 1 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 24 (W) x 100 (H) x 71 (D) Isolation method Relay isolation
Insulation resistance Between output bits: 20 MΩ min. (at 500
VDC)
Between the external terminals and the
functional ground terminal: 20 MΩ min. (at
500 VDC)
Between the external terminals and internal
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 output bits: 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 internal
circuits: 2300 VAC for 1 min at a leakage
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 Conforms to IEC 60068-2-6.
5 to 8.4 Hz with amplitude of 3.5 mm, 8.4
to 150 Hz, acceleration of 9.8 m/s
2
100 min each in X, Y, and Z directions
(10 sweeps of 10 min each = 100 min
total)
Shock resistance
100 m/s
2
, 3 times each in X, Y, and Z direc-
tions
I/O power supply
method
Supplied from external source. Current capacity of I/O
power supply terminal
Without I/O power supply terminals
NX Unit power con-
sumption
• Connected to a CPU Unit
2.00 W max.
• Connected to a Communications Cou-
pler Unit
1.65 W max.
Current consumption
from I/O power supply
No consumption
Weight 140 g max.
Circuit layout
0 to 7
C0 to C7
You cannot replace the relay.
Terminal block
Internal circuits
Internal power
supply
NX bus
connector
(left)
I/O power supply +
I/O power supply −
I/O power supply +
I/O power supply −
NX bus
connector
(right)