Omron H7CX-A4S-N Multifunction Counter/Tachometer H7CX Series

H7CX-A4S-N Omron Multifunction Counter/Tachometer H7CX Series

H7CX-A4S-N Omron H7CX Series Multifunction Counter/Tachometer

Omron H7CX-A4S-N H7CX Series Multifunction Counter/Tachometer

The Omron H7CX-A4S-N serves as the primary H7CX-A4S Multifunction Counter/Tachometer utilized to execute high-speed pulse processing and transistor logic output control across industrial control platforms.

Model Suffix Structure & Parameter Matrix

• H7CX: Omron DIN 48 x 48 mm panel-mount digital counter and tachometer series platform.

• A: Standard functional unit configuration.

• 4: 4-digit negative transmissive LCD display (-999 to 9999 value range).

• S: Transistor solid-state switching output profile.

• Supply Voltage (None): High-voltage operating power rating accepting 100 to 240 VAC at 50/60 Hz.

• External Connections (None): Direct rear-panel screw terminal connection interface.

• Settings (None): Single-stage threshold limit preset evaluation.

• N: Updated hardware revision featuring enhanced display contrast and reduced housing depth.

Physical & Technical Specifications

High-Speed Processing & Firmware Flash Compatibility

The embedded processing engine executes real-time pulse rate evaluation up to 10 kHz without sampling jitter. Firmware flash compatibility ensures consistent register mapping and configuration parameter access across system revisions. Onboard non-volatile EEPROM memory stores user pre-scaling parameters, target limits, and current count totals indefinitely without battery backup. Internal power-up verification routines check parameter flash integrity before enabling solid-state switching outputs to prevent unintended switching states during supply transients.

Package Items & Accessories

• 1 x Omron H7CX-A4S-N Multifunction Counter Unit

• 1 x Panel Mounting Adapter Clamp

• 1 x Waterproof Rubber Packing Gasket

Panel Mounting Directives & Wiring Guidelines

Enclosure Cutout Assembly

• Prepare a 45 mm x 45 mm square panel cutout; position the rubber gasket over the bezel prior to insertion to achieve IP66 front ingress protection.

• Insert the counter body into the panel opening and slide the rear adapter forward until the side tabs lock firmly against the inner wall.

Electrical Wiring Connections

• Wire power leads to the rear screw terminals using insulated M3.5 ring or fork terminals; torque terminal screws to 0.5 N-m.

• Use shielded twisted-pair cables for pulse input signals from sensors or encoders, terminating shields to a single grounding point to maintain noise isolation.

Frequently Asked Questions

• What supply voltage range is supported by the standard H7CX-A4S-N model?

  The unit operates on 100 to 240 VAC line power at 50/60 Hz applied across the rear AC supply terminals.

• What load rating is supported by the solid-state transistor output?

  The transistor output switches up to 30 VDC at a maximum load current of 100 mA for direct PLC input interfacing.

• How are counter registers protected during an unexpected line power failure?

  Internal non-volatile EEPROM memory automatically saves configuration registers, preset thresholds, and current counts without batteries.

• What display count capacity is provided by the 4-digit screen?

  The 4-digit negative transmissive LCD screen presents count values ranging from -999 to 9999 with selectable decimal points.

• What physical wiring interface is present on the rear housing?

  The rear interface features standard M3.5 screw terminal blocks for direct conductor connection without external sockets.

• How is dust and moisture sealing achieved on panel doors?

  Installing the instrument with the included rubber packing gasket provides an IP66 equivalent water and dust barrier.

• Can the unit operate as a tachometer or frequency meter?

  Yes, internal menu parameters allow mode selection between preset counter, totalizing counter, and tachometer frequency modes.

• Does the input circuit accept both NPN and PNP sensor connections?

  Yes, internal input logic settings allow configuration for either NPN or PNP proximity sensors and encoders.