Safety CPU Unit
NX-SL3[][][]
The simplest way to integrate safety into ultra-high-speed machine automation – Bring safety to your production site
Regulations and Standards
Safety CPU Units NX-SL3[][][]
Certification body | Standards |
TÜV Rheinland | • 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 |
The NX-series Safety Control Units allow you to build a safety control system that meets the following standards.
• Requirements for SIL 3 (Safety Integrity Level 3) in IEC 61508, EN 62061, (Functional Safety of Electrical/ Electronic/ Programmable Electronic Safety-related Systems)
• Requirements for PLe (Performance Level e) and for safety category 4 in EN ISO13849-1
The NX-series Safety Control Units are also registered for RCM, EAC, and KC compliance.
• Requirements for SIL 3 (Safety Integrity Level 3) in IEC 61508, EN 62061, (Functional Safety of Electrical/ Electronic/ Programmable Electronic Safety-related Systems)
• Requirements for PLe (Performance Level e) and for safety category 4 in EN ISO13849-1
The NX-series Safety Control 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 | |
Installation method | DIN Track (IEC 60715 TH35-7.5/TH35-15) | |
Unit Specifications
Unit name | Safety CPU Unit | |
Model | NX-SL3300 | NX-SL3500 |
Maximum number of safety I/O points | 256 points | 1024 points |
Program capacity | 512 KB | 2048 KB |
Number of safety I/O connections | 32 | 128 |
Number of FSoE master connections | 32 | 128 |
I/O refreshing method | Free-Run refreshing | |
External connection terminals | None | |
Indicators |  |  |
Dimensions | 30 × 100 × 71 mm (W × H × D) | |
I/O power supply method | Not supplied. | |
Current capacity of I/O power supply terminals | No I/O power supply terminals | |
NX Unit power consumption *1 | • Connected to a CPU Unit *2 1.25 W max. • Connected to a Communications Coupler Unit 0.90 W max. | |
Current consumption from I/O power supply | No consumption | |
Weight | 75 g max. | |
Installation orientation and restrictions | Installation orientation: • Connected to a CPU Unit *2 Possible in the upright installation orientation. • Connected to a Communications Coupler Unit *3 Six possible orientations. Restriction: None | |
*1 The cable length for the Units that supply power to the corresponding Unit must be up to 20 m.
*2 The NX102 CPU Unit can be connected. The NX1P2 CPU Unit cannot be connected.
*3 The NX-SL3300 can be connected to the NX-ECC20[] EtherCAT Coupler Unit and NX-EIC202 EtherNet/IP Coupler Unit. The NX-SL3500 can be connected to the NX-ECC20[] EtherCAT Coupler Unit.
*2 The NX102 CPU Unit can be connected. The NX1P2 CPU Unit cannot be connected.
*3 The NX-SL3300 can be connected to the NX-ECC20[] EtherCAT Coupler Unit and NX-EIC202 EtherNet/IP Coupler Unit. The NX-SL3500 can be connected to the NX-ECC20[] EtherCAT Coupler Unit.
Combinations of CPU Unit, Communications Unit, and Software
The following table shows the NX-series CPU Unit, Communications Units, and Sysmac Studio editions that can be used with the NX-SL3[][][] Safety CPU Units.
CPU Unit and Communications Unit | NJ/NX Series CPU Unit *1 | Communications Unit | ||
NX102 CPU Unit | EtherCAT Coupler Unit NX-ECC20[] | EtherNet/IP Coupler Unit NX-EIC202 | Communication Control Unit NX-CSG320 | |
Edition of Sysmac Studio *2 | Standard Edition | Standard Edition | Standard Edition Sysmac Studio Safety Edition | Standard Edition Sysmac Studio Safety Edition |
NX-SL3300 | YES | YES | YES | No |
NX-SL3500 | YES | YES | No | No |
*1 The NX-SL3[][][] Safety CPU Unit cannot be connected directly to the NJ/NX1P/NX7 CPU Unit. The NX-ECC20[] EtherCAT Coupler Unit is required to connect a system using these CPU Units.
*2 Refer to Version Information for the possible combinations of versions of Units and Sysmac Studio. The NX-I/O Edition can be used for configuration of a stand-alone safety control system using the EtherNet/IP Coupler Unit and NX-SL3300 Safety CPU Unit.
*2 Refer to Version Information for the possible combinations of versions of Units and Sysmac Studio. The NX-I/O Edition can be used for configuration of a stand-alone safety control system using the EtherNet/IP Coupler Unit and NX-SL3300 Safety CPU Unit.
Version Information
The following table shows the possible combinations of versions of NX-series Safety Control Units, CPU Units, Communications Coupler Units, and Sysmac Studio. Available functions that are related to safety control vary depending on the versions of the units and Sysmac Studio. Refer to the NX-series Safety Control Unit User's Manual (Cat. No. Z930) for details.
Safety Control Unit model and version | NX bus master: CPU Unit | NX bus master: EtherCAT Coupler Unit | NX bus master: EtherNet/IP Coupler Unit | |||||
Model | Unit version | NX102 CPU unit | Sysmac Studio | Communi- cations Coupler Unit NX-ECC20[] | NJ/NX1P/NX7 CPU Unit *1 | Sysmac Studio | Communi- cations Coupler Unit NX-EIC202 | Sysmac Studio |
NX-SL3300 | Ver.1.0 | Ver.1.30 or later | Ver.1.22 or higher | Ver.1.1 or later | Ver.1.06 or later | Ver.1.07 or higher | --- | --- |
Ver.1.1 | Ver.1.10 or higher | Ver.1.0 or later | Ver.1.10 or higher | |||||
NX-SL3500 | Ver.1.0 | Ver.1.30 or later | Ver.1.22 or higher | Ver.1.2 or later | Ver.1.07 or later | Ver.1.08 or higher | --- | --- |
Ver.1.1 | Ver.1.10 or higher | --- | ||||||
NX-SIH400 | Ver.1.0 | Ver.1.30 or later | Ver.1.22 or higher | Ver.1.2 or later | Ver.1.06 or later | Ver.1.07 or higher | --- | --- |
Ver.1.1 | Ver.1.10 or higher | Ver.1.0 or later | Ver.1.10 or higher | |||||
NX-SID800 | Ver.1.0 | Ver.1.30 or later | Ver.1.22 or higher | Ver.1.1 or later | Ver.1.06 or later | Ver.1.07 or higher | Ver.1.0 or later | Ver.1.10 or higher |
NX-SOH200 | Ver.1.0 | Ver.1.30 or later | Ver.1.22 or higher | Ver.1.1 or later | Ver.1.06 or later | Ver.1.07 or higher | Ver.1.0 or later | Ver.1.10 or higher |
NX-SOD400 | Ver.1.0 | Ver.1.30 or later | Ver.1.22 or higher | Ver.1.1 or later | Ver.1.06 or later | Ver.1.07 or higher | Ver.1.0 or later | Ver.1.10 or higher |
*1 This is version information when the NJ/NX1P/NX7 CPU Unit is used as the EtherCAT master in the system. The Safety Control Unit cannot be connected directly to these CPU Units.