Product Overview

The DVP64EH00R2 (DVP64EH00R2) is a high-density, high-performance main processing unit from Delta's flagship DVP-EH3 series. As the premium offering in the DVP-E line, the EH3 series is engineered for demanding industrial environments that require rapid execution speeds and large-scale I/O management. This "Base Unit" provides a robust 64-point configuration (32 digital inputs and 32 relay outputs) in a single modular chassis. Featuring an "H Type" AC input and mechanical relay outputs, the DVP64EH00R2 is the ideal controller for complex systems involving mixed-voltage loads, such as automated building management, large-scale process control, and heavy industrial machinery.

Technical Configuration

The hardware architecture of the DVP64EH00R2 represents a significant upgrade over standard PLCs, featuring a dual-processor design to ensure high-speed logic execution and communication stability. It is equipped with 32 digital inputs and 32 relay outputs, offering the flexibility to switch both AC and DC voltages directly. The CPU supports a massive 30k step program capacity and 12k words of data registers, making it capable of handling complex arithmetic, recipe management, and data logging. For system integration, the unit includes three independent communication ports (RS-232 and dual RS-485) supporting the Modbus protocol for seamless connectivity with HMIs and Variable Frequency Drives.

Technical Specifications

Technical FAQs

How does the EH3 series "R2" version differ from the transistor "T" version?

The "R" in DVP64EH00R2 stands for Relay. While the "T" (Transistor) version is used for high-speed pulse outputs to drive servos, the Relay version is a "dry contact" type. This allows you to switch diverse loads (e.g., 220 VAC contactors or 24 VDC solenoids) directly through the PLC without needing interposing relays, provided the current stays within the 2 A rating.

Can the DVP64EH00R2 handle high-speed counting?

Yes. Despite having relay outputs, the digital inputs are high-speed. The EH3 series supports high-speed counters up to 200 kHz. This allows the PLC to accurately read signals from high-resolution encoders or high-speed sensors, making it suitable for precise length measurement or flow totalizing.

Is this PLC compatible with DVP-S series modules?

No. The DVP64EH00R2 belongs to the large-frame EH series. It uses the EH-specific expansion bus on the right side. You must use EH-series expansion modules (e.g., DVP16HM11N or DVP04AD-H2) to increase your I/O count or add analog capabilities.

Engineering & Installation Guide

• Relay Contact Protection: Mechanical relays have a finite lifespan (typically 100,000 to 1,000,000 cycles depending on the load). If you are switching inductive loads like motors or solenoids, install an RC snubber (for AC) or a diode (for DC) across the load to suppress arcing and extend the life of the PLC's internal relays.

• Wiring Density: With 64 I/O points, the terminal blocks can become crowded. Use insulated ferrule terminals to ensure secure connections and prevent accidental short circuits between adjacent points. Ensure the 100–240 VAC power input is correctly grounded to the "G" terminal to minimize electrical noise.

• Heat and Mounting: Mount the unit on a 35 mm DIN rail in a horizontal orientation. Because the EH3 series has a high-speed processor, it generates more heat than basic models. Maintain at least 50 mm of vertical clearance above and below the unit to ensure proper convective cooling, especially if the PLC is switching high-current loads across many relay points.