Omron NX-ID - Page 254

Appendices
A - 4
NX-series Digital I/O Unit User’s Manual (W521)
Transistor Output Units (Screwless Clamping Terminal Block, 12 mm
Width)
Model
Num
ber
of
point
s
Internal I/O
common
Maximum
value of load
current
Rated volt-
age
I/O refresh-
ing method
ON/OFF
response
time
Reference
NX-OD2154
2
point
s
NPN
0.5 A/point, 1
A/Unit
24 VDC
Output
refreshing with
specified time
stamp only
300 ns
max./300 ns
max.
P. A - 4 0
NX-OD2258 PNP P. A - 4 2
NX-OD3121
4
point
s
NPN
0.5 A/point, 2
A/Unit
12 to 24 VDC
Switching Syn-
chronous I/O
refreshing and
Free-Run
refreshing
0.1 ms
max./0.8 ms
max.
P. A - 4 4
NX-OD3153
24 VDC
300 ns
max./300 ns
max.
P. A - 4 6
NX-OD3256
PNP
0.5 ms
max./1.0 ms
max.
P. A - 4 8
NX-OD3257
300 ns
max./300 ns
max.
P. A - 5 0
NX-OD3268
2 A/point, 8
A/Unit
0.5 ms
max./1.0 ms
max.
P. A - 5 2
NX-OD4121
8
point
s
NPN
0.5 A/point, 4
A/Unit
12 to 24 VDC
0.1 ms
max./0.8 ms
max.
P. A - 5 4
NX-OD4256 PNP 24 VDC
0.5 ms
max./1.0 ms
max.
P. A - 5 6
NX-OD5121
16
point
s
NPN 12 to 24 VDC
0.1 ms
max./0.8 ms
max.
P. A - 5 8
NX-OD5256 PNP 24 VDC
0.5 ms
max./1.0 ms
max.
P. A - 6 0
Transistor Output Units (M3 Screw Terminal Block, 30 mm Width)
Model
Num
ber
of
point
s
Internal I/O
common
Maximum
value of load
current
Rated volt-
age
I/O refresh-
ing method
ON/OFF
response
time
Reference
NX-OD5121-1
16
point
s
NPN
0.5 A/point, 5
A/Unit
12 to 24 VDC
Switching Syn-
chronous I/O
refreshing and
Free-Run
refreshing
0.1 ms
max./0.8 ms
max.
P. A - 6 2
NX-OD5256-1 PNP 24 VDC
0.5 ms
max./1.0 ms
max.
P. A - 6 4