NX-SI / SO – NX Series Safety Output Unit – Omron Safety I/O Unit

$ 272.14 – $ 432.52

SKU: N/A

Safety Output Units

Unit
type		 Ap-
pear-
ance		 Specification Unit
version		 Model
Number
of
safety
output
points		 Internal
I/O
common		 Maximum load
current		 Rated
voltage		 Number
of safety
slave
con-
nections		 I/O re-
freshing
method
Safety
Output
Units		 3244_lu_3_1 2 points Sourcing
outputs
(PNP)		 2.0 A/point,
4.0 A/Unit at 40°C,
and 2.5 A/
Unit at 55°C
The maximum load
current depends on
the installation
orientation and
ambient temperature.		 24 VDC 1 Free-Run
refreshing		 Ver. 1.0 NX-SOH200
3244_lu_3_2 4 points Sourcing
outputs
(PNP)		 0.5 A/point and
2.0 A/Unit		 24 VDC 1 Free-Run
refreshing		 Ver. 1.0 NX-SOD400

 

 

Regulations and Standards

Safety I/O Units NX-SI/SO

Certification body Standards
TÜV Rheinland *1 • EN ISO 13849-1
• EN ISO 13849-2
• IEC 61508 parts 1-7
• IEC/EN 62061
• IEC/EN 61131-2
• IEC 61326-3-1
UL • NRAG (UL 508 and ANSI/ISA 12.12.01)
• NRAG7 (CSA C22.2 No. 142 and CSA C22.2 No. 213)
Shipbuilding Standards NK, LK

 

*1 Using the NX-series Safety I/O Units in conjunction with the NX-series Safety CPU Unit allows you to build a safety control
system that meets the following standards:
• Requirements for SIL 3 in IEC 61508 and IEC/EN 62061
• Requirements for PLe and Safety Category 4 in EN ISO 13849-1
The NX-series Safety I/O Units are also registered for RCM, EAC, and KC compliance.

 

General Specifications

Item Specification
Enclosure Mounted in a panel (open)
Grounding method Ground to 100 Ω or less.
Operating
environment		 Ambient operating temperature 0 to 55°C (The upper limit of the ambient operating temperature
is restricted by the installation orientation.)
Ambient operating humidity 10% to 95% (with no condensation or icing)
Atmosphere Must be free from corrosive gases.
Ambient storage temperature -25 to 70°C (with no condensation or icing)
Altitude 2,000 m max.
Pollution degree 2 or less.
Noise immunity Conforms to IEC 61131-2.
2 kV on power supply line (Conforms to IEC 61000-4-4.)
Insulation class Class III (SELV)
Overvoltage category II
EMC immunity level Zone B
Vibration resistance Conforms to IEC 60068-2-6.
5 to 8.4 Hz with 3.5-mm amplitude, 8.4 to 150 Hz, acceleration of
9.8 m/s2, 100 minutes each in X, Y, and Z directions (10 sweeps
of 10 min each = 100 min total)
Shock resistance Conforms to IEC 60068-2-27.
147 m/s2, 3 times each in X, Y, and Z directions
Insulation resistance 20 MΩ between isolated circuits (at 100 VDC)
Dielectric strength 510 VAC for 1 min between isolated circuits,
leakage current: 5 mA max.
Installation method DIN Track (IEC 60715 TH35-7.5/TH35-15)

 

 

Safety Output Units NX-SOH200/SOD400

Unit name Safety Output Unit
Model NX-SOH200 NX-SOD400
Number of safety
output points		 2 points 4 points
Internal I/O common PNP (sourcing outputs)
Maximum load
current		 2.0 A/point
4.0 A/Unit at 40°C
2.5 A/Unit at 55°C
The maximum load current depends on the
installation orientation and ambient
temperature. See Installation orientation
and restrictions.		 0.5 A/point and 2.0 A/Unit
Rated voltage 24 VDC (20.4 to 28.8 VDC)
Number of safety
slave connections		 1
I/O refreshing method Free-Run refreshing
External connection
terminals		 Screwless clamping terminal block (8 terminals)
Indicators 3244_sp_4_1 3244_sp_4_2
Safety output ON
residual voltage		 1.2 V max. (Between IOV and all output terminals)
Safety output OFF
residual voltage		 2 V max. (Between IOG and all output terminals)
Safety output leakage
current		 0.1 mA max.
Dimensions 12 × 100 × 71 mm (W × H × D)
Isolation method Photocoupler isolation
Insulation resistance 20 MΩ min. between isolated circuits (at 100 VDC)
Dielectric strength 510 VAC for 1 min between isolated circuits, leakage current: 5 mA max.
I/O power supply
method		 Power supplied from the NX bus
Current capacity of
I/O power supply
terminals		 IOG: 2 A max./terminal IOG (A3 and B3): 2 A max./terminal
IOG (A7 and B7): 0.5 A max./terminal
NX Unit power
consumption		 • Connected to a CPU Unit or a
Communication Control Unit *1
1.05 W max.
• Connected to a Communications Coupler
Unit *2
0.70 W max.		 • Connected to a CPU Unit or a
Communication Control Unit *1
1.10 W max.
• Connected to a Communications Coupler
Unit *2
0.75 W max.
Current consumption
from I/O power supply		 40 mA max. 60 mA max.
Weight 65 g max.
Circuit layout 3244_sp_4_3 3244_sp_4_4
Terminal connection
diagram		 So0 and So1: Safety output terminals
IOG: I/O power supply 0 V
3244_sp_4_5
Refer to User’s manual (Cat.No.Z930)
for details.		 So0 to So3: Safety output terminals
IOG: I/O power supply 0 V
3244_sp_4_6
Refer to User’s manual (Cat.No.Z930)
for details.
Installation
orientation
and restrictions		 Installation orientation:
• Connected to a CPU Unit or a
Communication Control Unit *1
Possible in the upright installation
orientation.
• Connected to a Communications Coupler
Unit *2
6 possible orientations
Restrictions: For upright installation, the
ambient temperature is restricted as shown
below depending on the total Unit load
current.
3244_sp_4_7
For all installation orientations other
than upright installation, the ambient
temperature is restricted as shown
below according to the total Unit load
current.
3244_sp_4_8		 Installation orientation:
• Connected to a CPU Unit or a Communication Control Unit *1
Possible in the upright installation
orientation.
• Connected to a Communications Coupler
Unit *2
6 possible orientations
Restrictions: None
Protective functions Overvoltage protection circuit and short detection

 

*1 The NX102 CPU Unit and the NX-CSG Communication Control Unit can be connected. The NX1P2 CPU Unit cannot be
connected.
*2 The NX-ECC20 EtherCAT Coupler Unit and NX-EIC202 EtherNet/IP Coupler Unit can be connected.

Weight N/A
Dimensions N/A
Model

NX-SOD400, NX-SOH200

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