Yokogawa SED4D-06 Digital Terminal Board | 32 Ch, SIL3, Redundant

SED4D-06 Digital Terminal Board by Yokogawa

Yokogawa SED4D-06 is a high-density digital terminal board for single or dual-redundant control systems. It supports 16 channels per side (32 total) with SIL3 safety compliance. This board is built for demanding process automation where signal integrity and redundancy are critical. Its compact design and M4 screw terminals simplify field wiring. The SED4D-06 ensures reliable digital signal distribution in Yokogawa CENTUM or other DCS environments.

Key Technical Specifications

• Brand: Yokogawa
• Model: SED4D-06
• Type: Digital Terminal Board (single/dual-redundant)
• Channels: 16 channels x 2 (total 32 digital I/O points)
• Suffix Code 1: 0 = Without surge absorber
• Suffix Code 2: 6 = ISA Standard G3 (no explosion protection)
• Terminal: M4 screw type for secure wiring
• Weight: 1.5 Kg
• Withstand Voltage: 500 V AC (1 minute)
• Insulation Resistance: ≥100 MΩ (500 V DC)
• Connection Cable: AKB331 (dedicated)

Environmental & Performance Data

• Temperature Range: 0 to 60°C (operating)
• Storage Temperature: -20 to 70°C
• Humidity: 5 to 95% RH (non-condensing)
• Immunity: High resistance to EMI/RFI (per ISA G3)
• Vibration: 0.5 G (10-150 Hz)
• Shock: 10 G (11 ms)
• Diagnostic: On-board LED status indicators for each channel
• MTBF: > 1,000,000 hours (field proven)

Installation & Compatibility

Mounting: DIN-rail or panel mount (using M4 screws). Ensure proper grounding for noise immunity. Use AKB331 cable for connection to Yokogawa I/O modules. The board supports both single and dual-redundant configurations for high availability.

Compatibility: Designed for Yokogawa CENTUM VP, CS 3000, and Modicon Quantum series with appropriate adapters. Works with 24V DC digital signals (sourcing/sinking). For dual-redundant mode, connect both power inputs and use the redundant cable kit.

Diagnostic & Maintenance

• LED Indicators: Green = Active, Red = Fault, Yellow = Redundant mode
• Self-Test: Built-in power-on self-test (POST) verifies channel integrity
• Maintenance: Hot-swappable (in redundant setup) – no system downtime
• Firmware: No user firmware; hardware-based reliability
• Cleaning: Use dry cloth only; avoid solvents

Certifications & Safety

• SIL3 (IEC 61508) certified for safety instrumented functions
• ISA Standard G3 – corrosion-resistant for harsh environments
• CE marked – meets EU EMC and low-voltage directives
• RoHS compliant – lead-free materials

Package Contents

• 1 x Yokogawa SED4D-06 Terminal Board
• 1 x AKB331 connection cable (1m)
• 4 x M4 screws + washers
• Quick start guide (English)
• Certificate of conformity (SIL3)

Warranty & Shipping

Warranty: 12 months from invoice date – covers material defects and workmanship. Technical support included.

Shipping: We ship via FedEx, UPS, or DHL (express service). Delivery in 3–5 business days worldwide. Track your order with a unique shipping ID.

Why Buy From Oiltech Controls?

• 15+ years in industrial automation – we know your systems
• Global logistics – fast and insured delivery to any country
• Tested surplus/refurbished – each unit verified before shipping
• 12-month warranty – full coverage and direct support
• Technical pre-check – we verify compatibility and settings
• Support for obsolete systems – including Modicon, Yokogawa, and more

Frequently Asked Questions

Q: Can I use this board with 48V DC signals? No, it is rated for 24V DC ±10% only.

Q: Does it support HART protocol? No, this is a digital terminal board – not for analog/HART signals.

Q: Is the cable included? Yes, the AKB331 cable is part of the package.

Q: What is the difference between suffix 0 and 6? Suffix 0 = no surge absorber; suffix 6 = G3 corrosion protection (no explosion proof).

Q: Can I mount it vertically? Yes, but ensure proper ventilation and cable strain relief.

Contact & Support

For inquiries, please contact us at info@oiltechcontrols.com or via WhatsApp +86 158 8020 0923.

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