
Precautions for Correct Use
If you make the following setting to pin 2 and pin 4 of the port for the Digital I/O Variable Hub
and connect the Hub with external devices, use the external devices without protective diodes
in the locations shown in the following figure.
• Pin 4: Output, Pin 2: Input
• Pin 4: Input, Pin 2: Output
If the connected external devices have protective diodes, change them to those with built-in re-
verse current prevention diodes as shown in the following figure, or externally install reverse
current prevention diodes.
IO black
IO black
G blue
G blue
2
1
3
4
2
1
3
4
1
2
4
3
Connected external device
V brown
V brown
IO white
IO white
L
Internal
circuits
Protective diode
2
1
3
4
Connected external device
L
Internal
circuits
Protective diode
I/O connector
IO-Link Master Unit
IO-Link connector
U/IN P+
OUT P+
C/Q
U/IN P-/OUT P-
I/O connector
I/O connector
Built-in reverse
current prevention
diode
External reverse
current prevention
diode
Pin 4: Input
Pin 2: Output
Pin 4: Output
Pin 2: Input
Digital I/O Variable Hub
If the connected external devices have protective diodes, reverse current flows due to a differ-
ence between the Unit/input power supply and the output power supply as shown in the figure
below, which may result in failure or malfunction of the product or connected external devices.
5 Installation and Wiring
5-12
NXR-series IO-Link I/O Hub User’s Manual (W620)
Содержание NXR Series
Страница 6: ...Manual Structure 4 NXR series IO Link I O Hub User s Manual W620 ...
Страница 26: ...Revision History 24 NXR series IO Link I O Hub User s Manual W620 ...
Страница 34: ...1 Features and System Configuration 1 8 NXR series IO Link I O Hub User s Manual W620 ...
Страница 90: ...6 Process Data and Service Data 6 12 NXR series IO Link I O Hub User s Manual W620 ...
Страница 108: ...7 Functions of IO Link I O Hubs 7 18 NXR series IO Link I O Hub User s Manual W620 ...
Страница 131: ...I Index I 1 NXR series IO Link I O Hub User s Manual W620 I ...
Страница 133: ......