Omron NX Series Hardware User Manual page 83

Electrical and Mechanical Specifications
The electrical and mechanical specifications are given below.
Model
Enclosure
Dimensions (mm)
*2
Weight
Unit power supply
Power supply to the NX
Unit power supply
I/O Power Supply to NX Units
External connection ter-
minal
*1. Includes the End Cover, and does not include projecting parts.
*2. Includes the End Cover. The weight of the End Cover is 82 g.
*3. Includes an SD Memory Card. The NX Unit power consumption to NX Units is not included.
*4. The inrush current that occurs when the supplied power is changed to ON from a continuous OFF state.
The inrush current may vary depending on the operating condition and other conditions. Therefore, select
fuses, breakers, and external power supply devices that have enough margin in characteristic and capacity,
considering the condition under which the devices are used.
In particular, in case when you insert a switch to turn ON/OFF the DC power supplied from an external pow-
er supply, if the duration of an ON-OFF-ON cycle is one second or less, the inrush control circuit may not
function, which cause an inrush current of approximately 30 A/0.3 ms.
*5. The amount of current that can be passed constantly through the terminal. Do not exceed this current value
when you use a through-wiring for the Unit power supply.
*6. When the type of the I/O power supply to NX Units you use is the supply from NX bus, an Additional I/O
Power Supply Unit is required. Refer to 4-3 Designing the I/O Power Supply System on page 4-13 for de-
tails.
NX-series NX102 CPU Unit Hardware User's Manual (W593)
Item
*1
Power supply voltage
Unit power consumption
*4
Inrush current
Current capacity of power
*5
supply terminal
Isolation method
NX Unit power supply ca-
pacity
NX Unit power supply effi-
ciency
Isolation method
Communication connector
Screwless clamping termi-
nal block
Output terminal (service
supply)
RUN output terminal
NX bus connector
3 Configuration Units
Specification
NX102-££££
Mounted in a panel
72 × 100 × 90 mm (W×H×D)
390 g max.
24 VDC (20.4 to 28.8 VDC)
5.80 W max.
*3
For cold start at room temperature:
10 A max./0.1 ms max.
and
2.5 A max./150 ms max.
4 A max.
No isolation: between the Unit power supply ter-
minal and internal circuit
10 W max.
80%
No isolation: between the Unit power supply ter-
minal and NX Unit power supply
*6
Not provided
RJ45 for EtherNet/IP Communications × 2
RJ45 for EtherCAT Communications × 1
For Unit power supply input and grounding (Re-
movable)
Not provided
Not provided
32 NX Units can be connected
3
3-3