ABB PHARPS03000000
ABB PHARPS03000000 - Image 2

ABB PHARPS03000000

Product Brief:​

The SD82x mounts in the dedicated PSU slots​ on an AC 800M baseplate:

  • BC810 (single CPU):​ 1 PSU slot — can hold 1 × SD822 or SD823
  • BC820 (redundant CPU):​ 2 PSU slots — can hold 2 × SD822 or 2 × SD823 for N+1 redundancy (diode-OR inside baseplate — no external diodes)
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Category: SKU: ABB PHARPS03000000

Description

ABB PHARPS03000000

  • Functional Features:
    • Redundant N+1:​ In BC820, install 2 × SD822 (or 2 × SD823) → if one fails the other supports full load (briefly for SD822 if load >5 A — design should keep load ≤single PSU rating for true N+1; for loads >5 A use 2 × SD823 each ≥½ load)
    • Alarm Relay:​ Normally energized when output OK — de-energizes on fault / input loss → can trigger DCS alarm “Controller PSU Fail”
    • Hot-Swap:​ Can replace a failed PSU in redundant pair while system runs (other PSU carries load) — after swap verify Input & Output OK LEDs
    • Wide Input Range:​ Accepts 18–30 V DC — compatible with typical 24 V DC plant DC system (lead-acid battery float 27.6 V OK; solar / UPS 24 V DC OK)
  • Application Scenarios:
    • Powers AC 800M PM865/PM866/PM876/PM891 in BC810 (single) or BC820 (redundant)
    • In small systems with local S800 I/O (<6 modules, total 5 V ≤3 A, UP ≤2 A) can power TB521 PPD113 via ModuleBus cable — but best practice: give S800 rack its own PPD113A01 (isolates I/O load from controller PSU)
    • Redundant pairs in critical process units (turbo compressor control, boiler MFT node, etc.)
  • Material & Structure:
    • Housing: Aluminum / sheet steel, powder-coat gray (RAL 7035)
    • Terminals: Screw-type (removable plug) — Input (+ / –), Output (+ / –), Alarm Relay (C/NO/NC), PE
    • DIN clip & locating peg engage BC810/BC820 baseplate slots
    • Front: Transparent window showing Input OK (green), Output OK (green), Fault (red) LEDs
  • Working Principle:

    Input 24 V DC from plant PSU → EMI filter → active PFC (if AC-input version; DC-input is buck-boost regulated) → DC/DC converter → regulated 24 V DC output → OV/UV/OCP monitor → if within limits → Output OK LED on & Alarm Relay picked up; if fault → Fault LED on & Alarm Relay drops → controller sees PSU fail → may log alarm / initiate controlled shutdown if redundant pair also fails

  • Installation Requirements:
    1. In BC820: install SD82x in left PSU slot first (Slot A) → if redundant, install second in Slot B
    2. Connect plant 24 V DC:
        • plant 24 V → SD82x Input +
      • – plant 24 V → SD82x Input –
      • PE → SD82x PE terminal
      • Fuse plant supply per SD82x input current + inrush (typical 2 × rated input current slow-blow — e.g., SD822: 10 A slow-blow; SD823: 20 A slow-blow) — consult ABB “Recommended Fuse” table in manual
    3. Connect Alarm Relay (C/NO/NC) to DCS DI or annunciator (typically NO contact in series with other controller PSU alarms → common alarm)
    4. If powering local S800 I/O from this PSU (uncommon): connect TB521 PPD113 input from SD82x Output +/– via fused link — ensure total I/O load ≤ SD82x rating minus CPU+CEX load (~1.5–2 A)
    5. Verify Input OK & Output OK LEDs green before inserting CPU (if new baseplate) or after CPU already running (redundant swap — other PSU shows OK)
    6. In Control Builder M / 800xA: PSU status readable via system diagnostics — “Power Supply Status: OK / Fault”
  • Use & Precautions:
    • Redundancy Sizing:​ For true N+1 with 2 × SD822 (5 A each) — keep load ≤5 A (single PSU capacity) so surviving unit can carry full load on partner failure. If load 5–10 A → use 2 × SD823 (10 A each) & keep load ≤10 A (single SD823 capacity) — design margin recommended 20 %.
    • Alarm Relay Wiring:​ Use NO contact in alarm circuit — healthy = relay energized = closed (fail-safe open on fault). Test annually: momentarily unplug one PSU (redundant pair) → alarm should activate; restore → clear.
    • Input Polarity & Fusing:​ Reverse polarity protected but may damage if reversed while powered — double-check +/– before energizing. Use properly sized fuse — under-fuse causes nuisance trip on inrush; over-fuse risks cable/wiring damage on short.
    • Do NOT Parallel Outputs of Two Baseplates:​ Only parallel within same BC820 (diode-OR internal). If need >10 A @24 V for large I/O cluster → use separate PSU (e.g., ABB CP series 24 V DC 20 A DIN PSU) for I/O / field devices; keep SD82x for controller only.
    • Keep Spare:​ PSU electrolytic caps age (~10–12 yr) — if in critical service keep spare SD82x matching type (SD822 vs SD823 — not interchangeable if your load requires 10 A; for <5 A load SD822 can sub for but not vice versa if load >5 A). After replacement verify LEDs & alarm contact operation.
    • Firmware / HW Compat:​ / are passive — no firmware; ensure mechanical keying matches BC810/BC820 generation (all SD82x fit BC810/ — no issue). If very old BC800 (PM510 era) used different PSU (SA801) — NOT interchangeable.

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