Omron NX-OD5256 User Manual

A - 5
Appendices
NX-series Digital I/O Unit User’s Manual (W521)
A-1 Data Sheet
A
A-1-2 Digital Input Units
The meanings of the items on the data sheet of the DC Input Unit are explained in the table below.
A-1-2 Digital Input Units
Description of Items on Data Sheet of the DC Input Units
Item Description
Unit name The name of the Unit.
Model The model of the Unit.
Number of points The number of input points provided by the Unit.
External connection
terminals
The type of terminal block and connector that is used for connecting the Unit. The number of termi-
nals on the terminal block is also described when a screwless clamping terminal block is used.
I/O refreshing method The I/O refreshing methods that are used by the Unit. Free-Run refreshing, synchronous I/O
refreshing and input refreshing with input changed time are available.
Indicators The type of indicators on the Unit and the layout of those indicators.
Internal I/O common The polarity of the input devices that are connected to the Unit. NPN connection and PNP connec-
tion are available.
Rated input voltage The rated input voltage and range of the Unit.
Input current The input current at the rated voltage of the Unit.
ON voltage/ON current The input voltage in which the Unit input turns ON, and corresponding input current.
OFF voltage/OFF cur-
rent
The input voltage in which the Unit input turns OFF, and corresponding input current.
ON/OFF response
time
The delay time for which the status change of the input terminals reaches the internal circuit of the
Unit. The input filter time below is not included. It is described according to the ON/OFF sequence.
Input filter time The filter time when the status of the internal circuit is read as the data to the internal of the Unit. It
is same for both ON/OFF. The filter time to be set by the Support Software is described.
Dimensions The dimensions of the Unit. They are described as W x H x D. The unit is "mm".
Isolation method The isolation method between the input circuit and internal circuit of the Unit.
Insulation resistance The insulation resistance between the input circuit and internal circuit of the Unit.
Dielectric strength The dielectric strength between the input circuit and internal circuit of the Unit.
I/O power supply
method
The method for supplying I/O power to the Unit. The supply method is determined for each Unit.
The power is supplied from the NX bus or the external source.
Current capacity of I/O
power supply terminal
The current capacity of the power supply terminals (IOV/IOG) of the Unit. Do not exceed this value
when supplying the I/O power to the connected external devices.
NX Unit power con-
sumption
The power consumption of the NX Unit power supply of the Unit.
Current consumption
from I/O power supply
The current consumption from I/O power supply of the Unit. The above input current and current
consumption of any connected external devices are excluded.
Weight The weight of the Unit.
Circuit layout The input circuit layout of the Unit.
Installation orienta-
tion and restrictions
The installation orientation of the Slave Terminal including the Unit, and the details of restrictions
on the specifications due to the installation orientation.
Terminal connection
diagram
A diagram of the connection between the Unit and connected external devices. When an I/O
Power Supply Connection Unit or a Shield Connection Unit is required to be connected to the con-
nected external devices, the description for such is included.
Disconnec-
tion/Short-circuit
detection
The function of the Unit to detect a disconnection/short-circuit.
Protective function The protective function that the Unit has.

Omron NX-OD5256 Specifications

General

Brand	Omron
Model	NX-OD5256
Category	I/O Systems
Language	English