The Omron NX701-1620, also cataloged as the NX701 Motion Controller, operates as a dedicated hardware component for high-speed multi-axis motion control and database connectivity within EtherCAT and EtherNet/IP networks.

Hardware Identification & Variant Architecture

• NX701: Identifies the high-performance dual-core central processing unit platform within the Sysmac NX architecture.
• 16: Specifies synchronization capacity supporting up to 128 motion axes (including virtual axes).
• 20: Designates integrated database connection capabilities alongside standard sequence control and OPC-UA server functionality.

Core Technical Specifications

Industrial Network & Synchronization Performance

The controller integrates dual embedded network architectures to manage localized hardware and enterprise IT infrastructure simultaneously. Motion synchronization cycles operate on EtherNet/IP deterministic networks and dedicated EtherCAT master protocols down to 0.125 ms primary task intervals. Backplane bus communication velocity Licences enable dynamic data exchanges across attached NX-series expansion modules, while internal firmware flash compatibility guarantees seamless execution of relational database commands without interrupting deterministic real-time motion loops.

Scope of Delivery

• 1 x Omron NX701-1620 CPU Unit
• 1 x End Cover Terminal Block (NX-END01)
• 1 x Battery Pack (CJ1W-BAT01)

Installation & Environmental Wiring Standards

Panel Mount & Vibration Protection

• Secure the unit onto a standard 35 mm DIN rail inside an IP54-rated sealed control enclosure.
• Install end brackets on both sides of the assembled controller stack to prevent lateral movement along the DIN rail during mechanical vibration.

Bus Isolation & Electrical Shielding

• Ground the functional earth terminal using a dedicated copper conductor exceeding 2.0 mm sq to a single-point panel ground busbar.
• Run EtherCAT communication lines in isolated metallic conduits separated from high-voltage motor power leads by at least 100 mm.

Thermal Dissipation Clearance

• Maintain a minimum vertical gap of 30 mm above and below the controller chassis to facilitate standard natural convection air circulation.

Engineering Technical Inquiries

• What is the minimum primary task execution cycle time for this motion controller?

  The unit executes its primary task loop at a minimum deterministic cycle speed of 0.125 ms for motion processing.

• How many total axes can be managed simultaneously by the CPU?

  The processor supports a maximum of 128 total axes, including both physical synchronized axes and virtual axes.

• What internal memory capacity is allocated for program code and variable storage?

  The unit features 80 MB of dedicated execution program memory alongside 260 MB allocated for user variable storage.

• Which communication protocols are natively supported on the hardware interfaces?

  The controller integrates native communication ports for EtherCAT Master, EtherNet/IP, and standard Ethernet TCP/IP protocols.

• Is the CPU capable of direct database connectivity without external gateways?

  Yes, the hardware includes native database connection functionality alongside standard OPC-UA server communications.

• What expansion bus system is used for local input and output module connection?

  Local physical inputs and outputs connect via the high-speed internal NX I/O backplane bus system.

• What is the physical weight of the standalone processor unit?

  The controller chassis has a net physical weight of 0.88 kg.

• Does the unit require specific earthing procedures during panel assembly?

  The functional ground terminal must be connected to a dedicated earth bus using wire greater than 2.0 mm sq.