Datasheet

NX series I/O 9
Digital input unit (with M3 screw terminal block) (24 VDC)
Item Specifications
Model NX-ID5142-1
Name DC input unit
Internal I/O common For both NPN/PNP
Capacity 16 points
Rated input voltage 24 VDC (15 to 28.8 VDC)
Input current
*1
*1. Typical rated current at 24 VDC.
7 mA
ON voltage 15 VDC min.
ON current 3 mA min.
OFF voltage 5 VDC max.
OFF current 1 mA max.
ON/OFF response time 20 s max./400 s 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
Dielectric strength 510 VAC between isolated circuits for 1 minute at a leakage current of 5 mA max.
Insulation resistance 20 M min. between isolated circuits (at 100 VDC)
Isolation method Photocoupler isolation
Unit power consumption 0.55 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 Switching synchronous I/O refreshing and free-run refreshing
Terminal block type M3 screw terminal block
18 terminals
Dimensions (W x H x D) 30 × 100 × 71 mm
Weight 125 g max.
Disconnection/
short-circuit detection
Not supported
Protective function Not supported
Terminal wiring
Circuit layout
NX-ID5142-1
I/O power supply +
I/O power supply −
I/O power supply +
I/O power supply −
IN0
to
IN15
COM
COM
Terminal block
Input indicator
3.3 k

Internal circuits
NX bus
connector
(left)
NX bus
connector
(right)
NX-ID5142-1
A0
AB
A2
A4
A1
A3
A5
A7
A8
A6
B0
B2
B4
B1
B3
B5
B7
B8
B6
IN2
IN6
IN0
IN4
IN8
IN12
IN14
COM
IN10
Terminal
Signal Name Signal Name
24 VDC
IN3
IN7
IN1
IN5
IN9
IN13
IN15
COM
IN11
• The polarity of the input power supply can be connected in either direction.