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Appendices
A - 22
NX-series Digital I/O Unit User’s Manual (W521)
AC Input Units (Screwless Clamping Terminal Block, 12 mm Width)
Unit name
AC Input Unit
Model
NX-IA3117
Number of points
4 points, independent contacts
External connection
terminals
Screwless clamping terminal block (8 ter-
minals)
I/O refreshing method
Free-Run refreshing
Indicators
TS indicator, input indicators
Internal I/O common
No polarity
Rated input voltage
200 to 240 VAC, 50/60 Hz (170 to 264
VAC,
3 Hz)
Input current
9 mA typical (at 200 VAC, 50 Hz)
11 mA typical (at 200 VAC, 60 Hz)
ON voltage/ON current
120 VAC min./4 mA min.
OFF voltage/OFF cur-
rent
40 VAC max./2 mA max.
ON/OFF response time
10 ms max./40 ms max.
Input filter time
No filter, 0.25 ms, 0.5 ms, 1 ms (default),
2 ms, 4 ms, 8 ms, 16 ms, 32 ms, 64 ms,
128 ms, 256 ms
Dimensions
12 (W) x 100 (H) x 71 (D)
Isolation method
Photocoupler isolation
Insulation resistance
Between each AC input circuit: 20 M
Ω
min. (at 500 VDC)
Between the external terminals and the
functional ground terminal: 20 M
Ω
min.
(at 500 VDC)
Between the external terminals and inter-
nal circuits: 20 M
Ω
min. (at 500 VDC)
Between the internal circuit and the func-
tional ground terminal: 20 M
Ω
min. (at
100 VDC)
Dielectric strength
Between each AC input circuit: 3700
VAC for 1 min at a leakage current of 5
mA max.
Between the external terminals and func-
tional ground terminal: 2300 VAC for 1
min at a leakage current of 5 mA max.
Between the external terminals and inter-
nal circuits: 2300 VAC for 1 min at a leak-
age 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.
I/O power supply
method
Supplied from external source.
Current capacity of I/O
power supply terminal
Without I/O power supply terminals
Weight
0.50 W max.
Current consumption
from I/O power supply
No consumption
NX Unit power con-
sumption
60 g max.
Circuit layout
Installation orienta-
tion and restrictions
Installation orientation: Possible in 6 orientations.
Restrictions: No restrictions
IN0 to IN3
C0 to C3
Internal circuits
Terminal block
I/O power
I/O power supply −
I/O power
I/O power supply −
NX bus
connector
(left)
NX bus
connector
(right)
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...