Delta Electronics AH04HC-5A AH500 Series High-Speed Counter Module

SKU AH04HC-5A

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12-month warranty
Free returns within 30 days

Manufacturer: Delta Electronics
Product No.: AH04HC-5A
Country of origin:United States
Product Type: High-Speed Counter Modules
Payment: T/T, Western Union
Weight: 2000g
Dimensions: 150 mm x 120 mm x 50 mm
Shipping port: Xiamen
Warranty: 12 months

Description

Engineered for precise pulse-train decoding and real-time position monitoring, the Delta Electronics AH04HC-5A high-speed counter module integrates seamlessly into the high-performance AH500 PLC platform. This module serves as a critical interface for applications requiring rapid processing of encoder feedback, flow meter pulse streams, and discrete sensing devices. By offloading high-speed pulse processing from the main CPU, the AH04HC-5A ensures deterministic control and minimized system latency. The hardware supports multiple input modes and on-the-fly configuration modifications, delivering the reliability needed for complex motion control and positioning tasks in heavy industrial environments.

Features

Four independent high-speed input channels capable of registering input frequencies up to 200 kHz.
Versatile counting mode selection supporting 1-input (Up/Down, Pulse/Direction) and 2-input (A/B, 4-times A/B phase difference) signals.
On-board hardware interrupt execution to trigger immediate, millisecond-level PLC program routines upon reaching target presets.
Hot-swapping functionality allows module replacement without powering down the entire control rack, reducing downtime.
High-density connector (HDC) interface provides secure, vibration-resistant termination for field signal wiring.
Integrated module status diagnostic LEDs showing run, error, and physical channel activity.

Applications

Rotary and linear encoder feedback systems for exact axes positioning.
High-speed packaging, labeling, and sorting lines.
Industrial liquid/gas volumetric flow measurement utilizing pulse-output flow meters.
Continuous cut-to-length sheet metal, textile, and paper processing machinery.

Technical Specifications

Specification Parameter	Value / Rating
Manufacturer	Delta Electronics
Model Reference	AH04HC-5A
Module Type	High-Speed Counter Module
System Platform Compatibility	Delta AH500 Series PLC
Counter Channels	4 Channels
Maximum Counting Frequency	200 kHz
Counting Modes	UD (Up/Down), PD (Pulse/Direction), AB, 4AB (Quadrature Phase)
Internal Power Consumption	2.4 W
Connection Interface	High-Density Connector (HDC)
Hot-Swap Support	Yes (Hardware configuration must support online swapping)
Operating Temperature	0 to 55 degC
Storage Temperature	-20 to 70 degC
Shipping Weight (Calculated)	2.0 kg
Package Dimensions (Calculated)	150 mm x 120 mm x 50 mm

Empirical Engineering Insights

Alternative Models & Compatibility

The AH04HC-5A is strictly compatible with the Delta AH500 series PLC rack platform. It is not backward compatible with DVP series PLCs due to differences in backplane bus architecture and power distribution. If you are migrating an older DVP system, consider a full rack and CPU upgrade to the AH500 platform to utilize this unit's superior 200 kHz processing engine.

Application Pitfalls & Engineering Notes

When routing signal lines for the AH04HC-5A in high-voltage panels, avoid running the low-voltage differential pulse cables alongside variable frequency drive (VFD) output cables. High electromagnetic fields can induce stray counts, causing positioning drift. Utilizing shielded twisted-pair (STP) cabling grounded at a single, low-impedance ground point is mandatory for achieving reliable 200 kHz performance.

Commissioning & Wiring Tips

Verify the input signal voltage level configuration within the software (ISPSoft) before powering up the field instrumentation. Applying 24VDC to a channel set for 5VDC differential logic can permanently damage the channel's input optocouplers. Always use the optional DVPACAB7D10 or DVPAETB-IO16C external terminal blocks to simplify wiring and debugging phases.

Installation Guidelines

CRITICAL WARNING: Ensure all primary and auxiliary power sources feeding the PLC chassis and field sensors are completely de-energized before mounting, wiring, or removing this module. Failing to disconnect the power supply may result in serious electrical shock, component damage, or unexpected industrial machinery movement.

1 Align the module with the dedicated slot on the AH500 series backplane, ensuring the connector pins match up squarely with the backplane bus.

2 Press the module firmly into place until you hear the locking tabs engage at both the top and bottom of the unit.

3 Connect the HDC-type pre-wired cable or terminal interface block (DVPACAB7D10/DVPAETB-IO16C) to the module's front port and tighten any retaining screws to secure.

4 Apply power to the system, open ISPSoft, configure the hardware parameters, and execute a diagnostic system check to confirm communication and parameter mapping.

FAQ

What is the maximum input frequency supported by the AH04HC-5A?

The module supports a maximum counting frequency of 200 kHz per channel across all 4 independent channels.

Which counting modes can be configured on this module?

It supports 1-input modes (Up/Down and Pulse/Direction) and 2-input modes (A/B phase and 4-times A/B phase difference decoding).

Does the AH04HC-5A support hot-swapping in operational environments?

Yes, it supports hot-swapping functionality when integrated with a compatible Delta AH500 series PLC rack and appropriate CPU system configurations.

What accessories are recommended for wiring field devices to this module?

Delta recommends utilizing the optional DVPACAB7D10 cable and the DVPAETB-IO16C external terminal interface block for reliable high-density connector wiring.

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30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our technical warranty.

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Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

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