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Appendices
A - 4
NX-series Digital I/O Unit User’s Manual (W521)
Transistor Output Units (MIL Connector, 30 mm Width)
Model
Number
of points
Internal I/O
common
Maximum
value of load
current
Rated volt-
age
I/O refresh-
ing method
ON/OFF
response
time
Refer-
ence
NX-OD5121-5
16 points
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.
NX-OD5256-5
PNP
24 VDC
0.5 ms
max./1.0 ms
max.
NX-OD6121-5
32 points
NPN
0.5 A/point, 2
A/common, 4
A/Unit
12 to 24 VDC
0.1 ms
max./0.8 ms
max.
NX-OD6256-5
PNP
24 VDC
0.5 ms
max./1.0 ms
max.
Relay Output Units (Screwless Clamping Terminal Block, 12 mm
Width)
Model
Num
ber
of
point
s
Relay type
Maximum switching capacity
I/O refresh-
ing method
ON/OFF
response
time
Reference
NX-OC2633
2
point
s
N.O.
250 VAC/2 A (cos
Φ
= 1), 250
VAC/2 A (cos
Φ
= 0.4), 24
VDC/2 A, 4 A/Unit
Free-Run
refreshing
15 ms max./15
ms max.
NX-OC2733
N.O. + N.C.
DC Input/Transistor Output Units (MIL Connector, 30 mm Width)
Model
Number
of points
Internal I/O
common
Maximum
value of load
current
Rated volt-
age
I/O refresh-
ing method
ON/OFF
response
time
Refer-
ence
NX-MD6121-5
Outputs:
16 points
Inputs: 16
points
Outputs: NPN
Inputs: For
both
NPN/PNP
0.5 A/point, 2
A/Unit
Outputs: 12 to
24 VDC
Inputs: 24
VDC
Switching Syn-
chronous I/O
refreshing and
Free-Run
refreshing
Outputs: 0.1
ms max./0.8
ms max.
Inputs: 20
μ
s
max./400
μ
s
max.
NX-MD6256-5
Outputs: PNP
Inputs: For
both
NPN/PNP
Outputs: 24
VDC
Inputs: 24
VDC
Outputs: 0.5
ms max./1.0
ms max.
Inputs: 20
μ
s
max./400
μ
s
max.
Summary of Contents for NX-IA3117
Page 34: ...Sections in this Manual 32 NX series Digital I O Unit User s Manual W521...
Page 52: ...1 Features and System Configuration 1 18 NX series Digital I O Unit User s Manual W521...
Page 56: ...2 Specifications 2 4 NX series Digital I O Unit User s Manual W521...
Page 152: ...5 I O Refreshing 5 36 NX series Digital I O Unit User s Manual W521...
Page 204: ...8 Digital Mixed I O Units 8 8 NX series Digital I O Unit User s Manual W521...
Page 224: ...9 Troubleshooting 9 20 NX series Digital I O Unit User s Manual W521...
Page 230: ...10 Inspection and Maintenance 10 6 NX series Digital I O Unit User s Manual W521...
Page 337: ...I 1 I NX series Digital I O Unit User s Manual W521 Index...
Page 340: ...I 4 NX series Digital I O Unit User s Manual W521 Index...