1738-VHSC24M23 Allen-Bradley

1738-VHSC24M23 Allen-Bradley I / O module

Product  Description：

The 1738-VHSC24M23 serves as an intelligent I/O point within a DeviceNet or EtherNet/IP network. It features two independent counters, each capable of supporting various input modes such as Incremental (A, B, Z) or Pulse/Direction. The module is encapsulated in a rugged housing that supports "plug-and-play" connectivity via M23 quick-disconnect connectors, which significantly reduces the time and complexity of field wiring. It is built to survive harsh industrial conditions where moisture, dust, and vibrations are prevalent.

Product Parameters

• Module Type: Very High Speed Counter (VHSC)

• Number of Channels: 2 Counters and 2 Outputs

• Operating Voltage: $24 \text{ VDC}$ nominal

• Input Frequency: Supports a maximum input frequency of up to $1 \text{ MHz}$ for high-precision motion tracking.

• Connector Type: Uses M23 style connectors for robust, sealed electrical connections.

• Input Types: Compatible with $24 \text{ VDC}$ single-ended or differential encoders (A, B, and Z inputs).

• Output Specifications: Includes two fast-acting DC sourcing outputs rated for $0.5 \text{ A}$ each.

• Enclosure Rating: Rated at IP65, IP67, and IP69K, making it resistant to high-pressure washdowns and temporary submersion.

• Communication: Integrated into the ArmorPoint backplane, typically communicating via a network adapter like the 1738-ADNX or 1738-AENT.

Product Advantages

One of the most significant advantages of this module is its On-Machine Design. By eliminating the need for a protective enclosure, it reduces the footprint of the control system and lowers installation costs by shortening cable runs to sensors. The High-Speed Processing capability is another highlight; the module can process transitions and trigger outputs locally, bypassing the network latency of the main PLC for time-critical operations.

The M23 Connection System ensures a high degree of vibration resistance and simplifies maintenance, as modules can be replaced without manually rewiring terminal blocks. Additionally, the Diagnostic LEDs located on the module provide immediate visual feedback regarding network status, module health, and I/O activity, which streamlines troubleshooting in the field.

Important Considerations and Precautions

When deploying the 1738-VHSC24M23, users must ensure the Input Signal Compatibility. While it is a $24 \text{ VDC}$ module, the signal levels of the encoder must match the module's threshold to prevent missed counts or hardware damage. Because this is an On-Machine component, Mounting Torque is critical; the module must be secured to a flat surface with the specified torque to maintain its IP67/69K seal integrity.

It is also vital to observe Grounding Practices. Proper shielding of encoder cables is necessary to prevent electrical noise from interfering with the high-speed pulse train. Users should also be aware of the Total Current Draw on the ArmorPoint backplane; ensure that the communication adapter and power supply can provide sufficient current for the VHSC module and any other connected I/O.

Product Applications

The 1738-VHSC24M23 is ideally suited for applications requiring rapid response times and high-resolution position or flow monitoring.

• Packaging Lines: Tracking the position of products on a high-speed conveyor to trigger glue guns or labeling heads at exact millisecond intervals.

• Material Handling: Measuring the rotation of motors via encoders to manage the precise placement of sorted items.

• Food and Beverage Processing: Operating in washdown zones to monitor high-speed filling or capping machines where traditional cabinets cannot be placed.

• Automotive Assembly: Interfacing with high-speed pulse sensors on robotic arms or assembly jigs to verify the completion of mechanical cycles.

• Cut-to-Length Systems: Monitoring the length of material feeding through a machine and triggering a high-speed shear output once the target length is reached.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.