Description Key Technical Specifications Parameter Specification Part Number SDV144-S63 Product Type Digital Output Module Output Channels 16 channels Output Type 24V DC, sink or source (configurable via common wiring) Output Current 0.1 A per channel typical (verify with manual) Maximum Load Resistive load: 24W per channel at 24V (1A) – confirm derating Isolation Optically isolated between field and logic Common Configuration 8 channels per common (typical) Indicators LED per channel for output status External Power 24V DC ±10% (field supply) Internal Power 5V DC from backplane Mounting SGS I/O rack Termination Via dedicated terminal block (cable sold separately) Response Time < 2 ms typical Operating Temp 0°C to 50°C (32°F to 122°F) Storage Temp -20°C to 70°C (-4°F to 158°F) Humidity 10% to 90% non-condensing Certifications CE, UL, CSA (verify per manufacturing date) Product Introduction (Anti-Template) The YOKOGAWA SDV144-S63 is the digital output workhorse for Yokogawa’s SGS I/O system—the stuff that turns your DCS logic into real-world action. Sixteen channels of 24V DC, optically isolated, with enough grunt to drive most interposing relays or small solenoids directly. The “-S63” suffix? That’s Yokogawa’s way of encoding options: likely the standard model with screw termination compatibility, but you’ll need the mating cable and terminal block (like the SCN144 or similar) to land field wires. It’s used across Centum VP, CS 3000, and older Centum systems—basically anywhere Yokogawa deployed SGS remote I/O. One quirk: the common configuration. Typically, these are arranged as two groups of eight with separate commons. If your loads are all on the same potential, fine. If you’re mixing voltages or need isolation between groups, wire accordingly. And don’t assume the outputs are short-circuit protected—most aren’t. Fuse your field circuits externally. Installation & Configuration Guide This is an SGS I/O module. It mounts in a dedicated rack and connects to field wiring via a cable to a termination panel. Phase 1: Pre-Installation: ⚠️ Isolate both the 24V field supply and the rack power. Two sources, two lockouts. Tools: Small flathead for module latch, multimeter, ESD strap. Critical: Identify the slot where the SDV144-S63 will reside. SGS racks are addressed by slot position; swapping slots changes I/O mapping. Document the cable connection between the module and the termination panel (TB). If replacing an old module, photograph the cable routing and TB wiring. Phase 2: Removal: Locate the module in the SGS rack. Press the release latch at the top or bottom (Yokogawa uses an orange lever typically). Pull the module straight out from the rack. It disconnects from the backplane. Inspect the backplane connector pins for corrosion or damage. Clean if necessary. Leave the cable connected to the TB undisturbed. Phase 3: Installation: ESD strap on. Align the new YOKOGAWA SDV144-S63 with the card guides in the same slot. Slide it in until the backplane connector seats and the latch clicks. Tug gently to verify it’s locked. CRITICAL: No jumpers on the module itself—configuration is in software. However, the TB wiring determines sink vs source. Verify the TB common wiring matches your field devices. If you’re switching 24V loads, the common is typically 24V for sourcing outputs, or 0V for sinking. Incorrect common wiring = no output or blown fuse. Phase 4: Power-On & Testing: Re-energize the 24V field supply first, then the rack power. Observe the front-panel LEDs. Power LED (green) should light. No fault LEDs. Access the Yokogawa DCS engineering station (CENTUM VP or CS 3000). Navigate to the I/O module status screen. Verify the SDV144-S63 is recognized and shows “Normal”. Test each channel by forcing the output on/off from the software. Verify the field device responds. For inductive loads, check for excessive voltage spikes on an oscilloscope if you suspect snubber issues. Frequently Asked Questions (FAQ) 1. What’s the difference between SDV144 and SDV144-S63? The base model is SDV144. The “-S63” suffix specifies options: typically the standard version with no special coatings or certifications. Yokogawa uses suffixes for things like: -S = Standard -L = Low temperature -C = Conformal coating 63 = Specific option combination (often termination type) In practice, SDV144-S63 is the most common flavor you’ll encounter. If you have a different suffix, verify compatibility with your system’s power supply and environment. 2. Can I mix sink and source outputs on the same module? Not on the same common group. The SDV144-S63 has two commons (typically pins 1-8 share COM1, 9-16 share COM2). Each common can be wired as either sink or source, but all eight channels on that common must be the same. If you need both sink and source outputs, assign them to different common groups and wire the TB accordingly. 3. What termination block do I need for the SDV144-S63? You need a Yokogawa terminal block designed for SGS digital output modules. Common mates are: SCN144 (screw terminal, 16-channel) SCN148 (crimp terminal) SCN14L (with LED indication) The module connects via a dedicated cable (e.g., AKB331 or similar). If you’re building a system from scratch, order the complete set: module cable TB. If you’re replacing a module, reuse the existing cable and TB. 4. The output LED lights, but the field device doesn’t operate. What’s wrong? Classic “LED lies” scenario. The LED indicates the module’s internal logic state, not that current is flowing to the load. Check: Field power: measure voltage at the TB terminals. 24V present? Common wiring: verify the common is correctly connected (sink vs source). Fuse: if your TB has fuses, check them. Load wiring: continuity from TB to device. Device coil: measure resistance—open coil = no operation. If all else fails, jumper the output manually at the TB to isolate module vs wiring. 5. Is the SDV144-S63 hot-swappable in a Centum system? Yes, with caution. The SGS I/O system supports online replacement (module exchange under power) as long as: The rack power and field supply remain energized. You’re not interrupting critical control loops during the swap. The new module is identical (same model and revision). When you insert the new SDV144-S63, the system will auto-recognize it and restore outputs to the state before removal (if configured for “hold last state” or “return to previous”). Test this in a non-critical rack first. 6. The module shows a “COMM ERR” in the DCS. What’s the fix? Communication error between the module and the bus interface. Steps: Reseat the module—sometimes the backplane connection is loose. Check the rack’s power supply; low voltage can cause communication glitches. Verify the bus terminator at the end of the SGS rack is present and functional. Swap with a known-good module in the same slot. If the error moves, the original module is bad. If it stays, the slot or backplane is suspect. Reboot the rack (if process allows). 7. Is the SDV144-S63 still in production? No, it’s legacy. Yokogawa has moved to newer I/O platforms (like the N-IO for CENTUM VP). The SDV144-S63 is in the “mature” phase—spare parts are available through surplus channels, but not manufactured new. If you’re expanding an existing system, buy spares now while they’re available. For new installations, Yokogawa will push you toward their current-generation I/O, which requires different racks and termination hardware. EMERSON 5A26147G10 EMERSON 5A26148G14 PLC EMERSON 5A26149G14 PLC EMERSON 5A26355G01 PLC EMERSON 5A26355G02 PLC EMERSON 5A26355G03 PLC Email: [email protected] Phone: 86 15340683922 Sales:Wu Jiedong Our products are guaranteed for 1 year, with new and original production stopped and imported spare parts. All prices listed on the official website are subject to confirmation by contact: Wu Jiedong (manager). 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