NX-SI / SO – NX Series Safety Input Unit – Omron Safety I/O Unit
$ 347.16 – $ 365.14
SKU: N/A
Safety I/O Unit
Safety Input Units
Unit type |
Ap- pear- ance |
Specification | Unit version |
Model | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Number of safety input points |
Number of test output points |
Internal I/O common |
Rated input voltage |
OMRON special safety input devices *1 |
Number of safety slave con- nections |
I/O re- freshing method |
||||
Safety Input Units |
4 points | 2 points | Sinking inputs (PNP) |
24 VDC | Can be connected. |
1 | Free-Run refreshing |
Ver. 1.1 | NX-SIH400 | |
8 points | 2 points | Sinking inputs (PNP) |
24 VDC | Cannot be connected. |
1 | Free-Run refreshing |
Ver. 1.0 | NX-SID800 |
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) |
Unit Specifications
Safety Input Units NX-SIH400/SID800
Unit name | Safety Input Unit | |
---|---|---|
Model | NX-SIH400 | NX-SID800 |
Number of safety input points |
4 points | 8 points |
Number of test output points |
2 points | 2 points |
Internal I/O common | PNP (sinking inputs) | |
Rated input voltage | 24 VDC (20.4 to 28.8 VDC) | |
OMRON special safety input devices |
Can be connected. | Cannot be connected. |
Number of safety slave connections |
1 | |
I/O refreshing method | Free-Run refreshing | |
External connection terminals |
Screwless clamping terminal block (8 terminals) |
Screwless clamping terminal block (16 terminals) |
Indicators | ||
Safety input current | 4.5 mA typical | 3.0 mA typical |
Safety input ON voltage |
11 VDC min. | 15 VDC min. |
Safety input OFF voltage/OFF current |
5 VDC max., 1 mA max. | |
Test output type | Sourcing outputs (PNP) | |
Test output load current |
25 mA max. | 50 mA max. |
Test output residual voltage |
1.2 V max. (Between IOV and all output terminals) | |
Test 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 |
No applicable terminals. | |
NX Unit power consumption |
• Connected to a CPU Unit or a Communication Control Unit *1 1.10 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 |
20 mA max. | |
Weight | 70 g max. | |
Circuit layout | ||
Terminal connection diagram |
Si0 to Si3: Safety input terminals T0 and T1: Test output terminals Refer to User’s manual (Cat.No.Z930) for details. |
Si0 to Si7: Safety input terminals T0 and T1: Test output terminals 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: Maximum ambient temperature is 50ºC for any orientation other than upright installation. |
|
Protective functions | Overvoltage protection circuit and short detection (test outputs) |
*1 It can be connected to the NX102 CPU unit or communication control unit. It cannot be connected to the NX1P2 CPU unit.
*2 The NX-ECC20 EtherCAT Coupler Unit and NX-EIC202 EtherNet/IP Coupler Unit can be connected.
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