Configured for high-integrity safety signal acquisition in automated control systems, the Omron NX-SID800 (NX-SID Safety Input Unit) provides direct physical/electrical execution. This module evaluates 8 PNP sinking safety input channels and generates 2 test pulse output signals over the local NX bus network.

Part Number Structure & Functional Decoding

• NX: Specifies the Omron modular slice I/O architecture designed for EtherCAT and EtherNet/IP bus couplers.
• S: Designates integrated safety automation functional category.
• ID: Indicates digital input signal processing capability.
• 8: Represents 8 physical safety input channels onboard.
• 00: Specifies PNP sinking input logic with screwless clamping terminal block connectivity.

Engineering Specifications Matrix

Backplane Synchronization & Controller Throughput

The NX-SID800 interacts directly with EtherCAT bus couplers through high-speed backplane bus communication velocity channels. The module executes Free-Run refreshing while maintaining firmware flash compatibility across safety CPU units, eliminating propagation delays during high-density I/O scaling and enforcing deterministic transmission loops over Safety over EtherCAT (FSoE) networks.

Package Delivery Contents

• 1 x Omron NX-SID800 Safety Input Module
• 1 x 16-Pin Screwless Clamping Terminal Block

Mechanical Installation & Wiring Protocols

DIN Rail Mounting Execution

Snap the 12 mm module slice onto a standard 35 mm DIN rail until the side locking latch engages. Ensure adjacent bus interface pins seat completely without bending or applying axial pressure to the backplane connectors.

Terminal Wiring Connections

Insert stripped solid or ferruled conductors directly into the screwless clamping terminals. Verify that signal lines feeding the 8 safety inputs remain separated from power carrying cables to prevent induced voltage noise spikes.

Test Pulse Circuit Alignment

Wire the 2 test output channels directly to external safety device contacts such as emergency stop switches or light curtains. These test outputs supply diagnostic pulses to detect cross-fault shorts across input wiring loops.

Frequently Asked Questions

• What supply voltage range is required for the NX-SID800 safety inputs?

  The module accepts a nominal rated input voltage of 24 VDC within an allowable operating window of 20.4 to 28.8 VDC.

• How many total safety input points and test outputs are provided?

  The hardware integrates 8 discrete PNP safety input points alongside 2 independent diagnostic test output terminals.

• What voltage levels define the ON and OFF states for the inputs?

  An ON state requires a minimum threshold of 15 VDC, while an OFF state is defined by 5 VDC maximum at 1 mA maximum current.

• Does the NX-SID800 require tools to terminate field wiring connections?

  No, the unit features a 16-terminal screwless clamping terminal block designed for direct toolless push-in conductor insertion.

• How much power does the module draw from the internal NX bus?

  The internal NX Unit power consumption is rated at 0.75 W maximum, with a 20 mA maximum draw from the I/O power supply.

• What I/O refreshing mechanism is utilized by this module?

  The module utilizes Free-Run refreshing to continuously sample input state changes and update diagnostic registers.

• Can the module be inserted into an active backplane under power?

  No, power supplies to both the NX bus and external I/O terminals must be disconnected before installing or removing the unit.

• What is the physical width dimension of this I/O slice?

  The module features a compact slim housing measuring 12 mm wide by 100 mm high by 71 mm deep.