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Appendices
A - 28
NX-series Digital I/O Unit User’s Manual (W521)
Unit name
Transistor Output Unit
Model
NX-OD2258
Number of points
2 points
External connection
terminals
Screwless clamping terminal block (8 ter-
minals)
I/O refreshing method
Output refreshing with specified time stamp
Indicators
TS indicator, output indicator
Internal I/O common
PNP
Rated voltage
24 VDC
Operating load voltage
range
15 to 28.8 VDC
Maximum value of load
current
0.5 A/point, 1 A/NX Unit
Maximum inrush cur-
rent
4.0 A/point, 10 ms max.
Leakage current
0.1 mA max.
Residual voltage
1.5 V max.
ON/OFF response time
300 ns max./300 ns max.
Dimensions
12 (W) x 100 (H) x 71 (D)
Isolation method
Digital isolator isolation
Insulation resistance
20 M
Ω
min. between isolated circuits (at
100 VDC)
Dielectric strength
510 VAC between isolated circuits for 1
minute at a leakage current of 5 mA max.
I/O power supply
method
Supply from the NX bus
Current capacity of I/O
power supply terminal
IOV: 0.5 A/terminal max., IOG: 0.5 A/termi-
nal max.
NX Unit power con-
sumption
0.50 W max.
Current consumption
from I/O power supply
40 mA max.
Weight
70 g max.
Circuit layout
Installation orienta-
tion and restrictions
Installation orientation: Possible in 6 orientations.
Restrictions: No restrictions
Terminal connection
diagram
Disconnec-
tion/Short-circuit
detection
Not supported.
Protective function
With load short-circuit protection.
OUT0 to OUT1
This unit uses a push-pull output circuit.
IOV0 to 1
IOG0 to 1
Terminal block
Internal circuits
Isolation circuit
Drive circuit
NX bus
connector
(left)
I/O power
I/O power supply
−
I/O power
I/O power supply
−
NX bus
connector
(right)
Two-wire type
Three-wire type
24 VDC
Transistor Output
Unit
NX-OD2258
Additional I/O
Power Supply Unit
IOV
IOG
IOV
IOG
IOV
IOG
IOV
IOG
A1
B1
A8
B8
A1
B1
A8
B8
OUT1
IOV
IOG
NC
OUT0
IOV
IOG
NC
Содержание NX-IA3117
Страница 34: ...Sections in this Manual 32 NX series Digital I O Unit User s Manual W521...
Страница 52: ...1 Features and System Configuration 1 18 NX series Digital I O Unit User s Manual W521...
Страница 56: ...2 Specifications 2 4 NX series Digital I O Unit User s Manual W521...
Страница 152: ...5 I O Refreshing 5 36 NX series Digital I O Unit User s Manual W521...
Страница 204: ...8 Digital Mixed I O Units 8 8 NX series Digital I O Unit User s Manual W521...
Страница 224: ...9 Troubleshooting 9 20 NX series Digital I O Unit User s Manual W521...
Страница 230: ...10 Inspection and Maintenance 10 6 NX series Digital I O Unit User s Manual W521...
Страница 290: ...Appendices A 60 NX series Digital I O Unit User s Manual W521 Installation Height 100 71 Unit mm...
Страница 337: ...I 1 I NX series Digital I O Unit User s Manual W521 Index...
Страница 340: ...I 4 NX series Digital I O Unit User s Manual W521 Index...