Datasheet

NX series I/O 11
Digital input unit (230 VAC)
Item Specifications
Model NX-IA3117
Name AC input unit
Internal I/O common No polarity
Capacity 4 points, independent contacts
Rated input voltage 200 to 240 VAC, 50/60 Hz (170 to 264 VAC,
±3 Hz)
Input current 9 mA (at 200 VAC, 50 Hz)
11 mA (at 200 VAC, 60 Hz)
ON voltage 120 VAC min.
ON current 4 mA min.
OFF voltage 40 VAC max.
OFF current 2 mA max.
ON/OFF response time 10 ms max./40 ms max.
Input filter time Default setting: 1 ms
*1
*1. Input filter time: No filter, 0.25, 0.5, 1, 2, 4, 8, 16, 32, 64, 128, 256 ms.
Dielectric strength Between each AC input circuit: AC3700V VAC for 1 min at a leakage current of 5 mA max.
Between the external terminals and functional ground terminal: 2300 VAC for 1 min at a leakage current of 5 mA max.
Between the external terminals and internal circuits: 2300 VAC for 1 min at a leakage current of 5 mA max.
Between the internal circuit and the functional ground terminal: 510 VAC for 1 min at a leakage current of 5 mA max.
Insulation resistance Between each AC input circuit: 20 M min. (at 500 VDC)
Between the external terminals and functional ground terminal: 20 M min. (at 500 VDC)
Between the external terminals and internal circuits: 20 M min. (at 500 VDC)
Between the internal circuit and the functional ground terminal: 20 M min. (at 100 VDC)
Isolation method Photocoupler isolation
Unit power consumption 0.5 W max.
I/O power supply method Supply from external source
I/O current consumption No consumption
Current capacity of I/O
power supply terminal
Without I/O power supply terminals
I/O refreshing method Free-run refreshing
Terminal block type Screwless push-in terminal
8 terminals (A + B)
Dimensions (W x H x D) 12 × 100 × 71 mm
Weight 60 g max.
Disconnection/
short-circuit detection
Not supported
Protective function Not supported
Terminal wiring
Circuit layout
NX-IA3117
IN1
IN2
IN0
A1 B1
A8 B8
IN3
C1
C2
C0
C3
AC input unit
NX-IA3117
200 to 240 VAC
200 to 240 VAC
NX-IA3117
IN0 to IN3
C0 to C3
Internal circuits
Terminal block
I/O power supply +
I/O power supply −
I/O power supply +
I/O power supply −
NX bus
connector
(right)
NX bus
connector
(left)