The Omron H7CX-A4W-N, also cataloged as the H7CX Multifunction Counter, operates as a dedicated hardware component for high-speed pulse acquisition and dual-stage preset control within industrial automated control panels.

Part Number Nomenclature & Configuration

• H7CX: Designates the standard 48 mm x 48 mm DIN digital counter/tachometer hardware platform.
• A: Standard screw-terminal block connection interface.
• 4: 4-digit display capacity (0 to 9999 display range).
• W: 2-stage preset output configuration with dual control contacts.
• -N: Upgraded design generation featuring high-contrast display panel and improved configuration parameters.

Physical & Functional Specifications

High-Density I/O & Bus Data Throughput

The counter module executes direct high-speed input pulse sampling, maintaining optimal I/O density scaling across discrete panel assemblies. Internal register execution operates with high firmware flash compatibility to preserve setpoint configurations during power loss. Signal filtering stages prevent contact bounce interference while maintaining deterministic processing across high-density I/O switching circuits.

Standard Delivery Content

• 1 x Omron H7CX-A4W-N Counter Unit
• 1 x Panel Mounting Adapter
• 1 x Waterproof Packing Seal

Mechanical Installation & Wiring Protocol

Panel Cutout & IP Configuration

• Prepare a standard 45.0 mm x 45.0 mm panel cutout for flush-mount installation.
• Verify the waterproof packing gasket is aligned around the front housing bezel to achieve IP66 front-panel protection.

Power Supply & Signal Wiring

• Connect 100 to 240 VAC utility power to designated screw terminals using ring or spade lugs.
• Keep sensor signal input lines physically separated from high-current AC motor leads by a minimum distance of 50 mm.

Earth Grounding & Shielding

• Terminate input cable shielding to a clean single-point functional earth ground terminal inside the panel.

Technical Questions & Answers

• What is the display digit capacity on the H7CX-A4W-N model?

  The front display panel provides a 4-digit visual readout covering a range from -999 to 9999.

• What counting speeds can be selected for input pulse processing?

  Input response speed is configurable via software parameters to either 30 Hz or 5 kHz max.

• What power supply voltage is required to operate the counter?

  The unit accepts a wide AC power input ranging from 100 to 240 VAC at 50/60 Hz.

• How are output control functions configured on this specific model?

  The -W suffix indicates a 2-stage preset configuration with independent stage setpoints.

• What is the total mass weight of the unit?

  The hardware unit has a net weight of approximately 0.13 kg.

• What ingress protection level does the front panel offer when properly installed?

  When mounted using the supplied rubber packing seal, the front panel meets IP66 protection standards.

• Are configuration settings retained during an unannounced power failure?

  Internal non-volatile memory retains all user setpoints and system parameters without battery power.

• How is electrical noise prevented on sensitive input channels?

  Shielded wiring must be used for input leads, routed separately from high-voltage AC cables.