Omron NX-IA3117, User Manual

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7 Digital Output Units
7 - 2 NX-series Digital I/O Unit User’s Manual (W521)
7-1 Types of Digital Output Units
Digital Input Units are parts of NX Units, and process outputs of digital signals (ON/OFF signals).
The Digital Output Unit types are described below.
Transistor Output Units (Screwless Clamping Terminal Block, 12 mm
Width)
Model
Num
ber
of
poin
ts
Internal I/O
common
Maximum
value of
load cur-
rent
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 speci-
fied time
stamp only
300 ns
max./300 ns
max.
P. A-26
NX-OD2258 PNP P. A-28
NX-OD3121
4
point
s
NPN
0.5 A/point,
2 A/Unit
12 to 24
VDC
Switching
Synchro-
nous I/O
refreshing
and
Free-Run
refreshing
0.1 ms
max./0.8 ms
max.
P. A-29
NX-OD3153
24 VDC
300 ns
max./300 ns
max.
P. A-30
NX-OD3256
PNP
0.5 ms
max./1.0 ms
max.
P. A-31
NX-OD3257
300 ns
max./300 ns
max.
P. A-32
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-34
NX-OD4256 PNP 24 VDC
0.5 ms
max./1.0 ms
max.
P. A-35
NX-OD5121
16
point
s
NPN
12 to 24
VDC
0.1 ms
max./0.8 ms
max.
P. A-36
NX-OD5256 PNP 24 VDC
0.5 ms
max./1.0 ms
max.
P. A-37