A-1-3 Digital Output Units - Omron NX-ID User Manual

Appendices
A-1-3 Digital Output Units
Description of Items on the Data Sheet of the Transistor Output Unit
The meanings of the items on the data sheet of the Transistor Output Units are explained in the table
below.
Item
Unit name
Model
Number of points
External connection
terminals
I/O refreshing method
Indicators
Internal I/O common
Rated voltage
Operating load volt-
age range
Maximum value of
load current
Maximum inrush cur-
rent
Leakage current
Residual voltage
ON/OFF response
time
Dimensions
Isolation method
Insulation resistance
Dielectric strength
I/O power supply
method
Current capacity of I/O
power supply terminal
NX Unit power con-
sumption
Current consumption
from I/O power supply
Weight
Circuit layout
Installation orienta-
tion and restrictions
Terminal connection
diagram
Disconnec-
tion/Short-circuit
detection
Protective function
A - 38
The name of the Unit.
The model of the Unit.
The number of output points provided by the Unit.
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.
The I/O refreshing methods that are used by the Unit. Free-Run refreshing and synchronous I/O
refreshing are available.
The I/O refreshing methods that are used by the Unit. Free-Run refreshing, synchronous I/O
refreshing and output refreshing with specified time stamp are available.
The type of indicators on the Unit and the layout of those indicators.
The polarity of the output devices that are connected to the Unit. NPN connection and PNP con-
nection are available.
The rated output voltage of the Unit.
The output load voltage range of the Unit.
The maximum output load current of the Unit. The specifications for each output point and for the
Unit are described. The specifications for each common are described depending on model.
The maximum allowable inrush current of the Unit. Any inrush current from an external connection
load must be kept to or below this value.
The leakage current when the output of the Unit is OFF.
The residual voltage when the output of the Unit is ON.
The delay time for which data in the internal circuit is reflected in the state of output elements of the
Unit. It is described according to the ON/OFF sequence.
The dimensions of the Unit. They are described as W x H x D. The unit is "mm".
The isolation method of the output circuit and internal circuit of the Unit.
The insulation resistance between the output circuit and internal circuit of the Unit.
The dielectric strength between the output circuit and internal circuit of the Unit.
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.
The current capacity of the I/O power supply terminals (IOV/IOG) of the Unit. Do not exceed this
value when supplying the I/O power to the connected external devices.
The power consumption of the NX Unit power supply of the Unit. The power consumption when NX
Units are connected to a CPU Unit and the power consumption when NX Units are connected to a
Communications Coupler Unit.
The current consumption from I/O power supply of the Unit. The load current of any external con-
nection load and current consumption of any connected external devices are not included.
The weight of the Unit.
The output circuit layout of the Unit.
The installation orientation of a CPU Unit containing the Unit and the installation orientation of a
Slave Terminal containing the Unit. Any restrictions to specifications that result from the installation
orientation are also given.
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.
The function of the Unit to detect a disconnection/short-circuit.
The protective function that the Unit has.
Description
NX-series Digital I/O Unit User's Manual (W521)