Hitachi LYD000A Digital Redundant Output Module (24VDC, Modbus RTU, Fault-Tolerant)

Product Description

The Hitachi LYD000A is a rugged, fault-tolerant digital redundant output module engineered for Hitachi DCS/PLC industrial automation systems, designed to deliver mission-critical control signals to actuators, valves, contactors, and other field devices in harsh industrial environments. Featuring redundant dual-channel architecture, automatic fault detection & switchover, 24 VDC low-power redundant power input, and Modbus RTU (RS-485) communication for seamless integration, this modular I/O component supports dry contact/voltage digital outputs with up to 2A per channel (16-channels total) and industrial-grade EMI/RFI shielding. With IP20 front-panel protection, wide temperature operation (-20°C to +70°C), and hot-swappable design for minimal downtime, it is certified for critical process control applications in power generation, chemical processing, oil & gas, and manufacturing industries.

Key Functions

The LYD000A delivers mission-critical redundant output control with these core features: Dual-channel redundant architecture for automatic fault detection and seamless switchover to prevent production downtime; 16 high-current digital output channels (2A per channel, 24 VDC rated) for driving industrial actuators and valves; Modbus RTU communication protocol for easy integration with PLCs, DCS, SCADA systems, and HMI panels; 24 VDC redundant power input with low current consumption for reliable operation; Hot-swappable modular design for maintenance without system shutdown; Industrial-grade EMI/RFI shielding and IP20 protection for harsh plant environments; Wide temperature range operation (-20°C to +70°C) for global industrial deployments.

Application Scenarios

The Hitachi LYD000A is optimized for redundant output control in industrial automation applications including: Critical process control in chemical plants, refineries, and LNG terminals requiring fault-tolerant actuation; Power generation turbine/boiler control systems with redundant safety shutdown outputs; Oil & gas upstream/midstream process skids with emergency isolation valve control; Manufacturing automation lines with redundant motor starter and conveyor control; Retrofit solutions for legacy DCS/PLC systems needing redundant output expansion; Distributed I/O networks in remote monitoring stations with Modbus RTU communication.

Technical Specifications

• Global Inventory: 121 shared inventories worldwide, enabling direct procurement from overseas warehouses for faster delivery.
• Pricing & After-Sales: Competitive prices plus reliable after-sales warranty services.
• Customer Coverage: Serving clients across United States, Germany, Japan, South Korea, United Kingdom, France, Italy, Canada, Brazil, India, Australia, Russia, Spain, Netherlands, Switzerland, Sweden, Belgium, Austria, and Turkey.
• Product Quality: All items are brand new and original. Spare parts include a 1-year warranty, and all products are tested and certified.
• Discounts: Contact us for bulk-order discounts. We also offer further price adjustments if you receive lower quotes for identical products from other suppliers.