Description
The Siemens SIPART PS2 (6DR5xxx series) is the world’s most widely used microprocessor-based electropneumatic positioner for mounting on pneumatic linear or rotary actuators (control valves). It accepts a standard 4–20 mA or 0/4–20 mA + HART®, PROFIBUS PA, or Foundation Fieldbus signal (depending on communication variant) and positions the valve stem/shaft proportionally to the setpoint — with auto-calibration, self-diagnostics, and tight deadband performance.
Listed models:
- 6DR5320-ONG11-0AA0 → SIPART PS2 Type 5320 (Explosion-protected / Ex d / Flameproof enclosure — EEx d IIC T6 typical) — 4–20 mA input (non-bus), single-acting or double-acting (5320 = double-acting; 5310 = single-acting — verify: 5320 = double-acting with two output ports; 5310 = single-acting with one output + bleed port), Aluminum / Copper alloy housing, with local LCD display & pushbuttons for commissioning. “ONG11” defines: O = Basic version w/ display; NG = Ex d flameproof; 11 = 4–20mA input, single/dual action per config.
- 6DR5011-0NG13-0AA0 → SIPART PS2 Type 5011 (Non-Ex / Standard — polycarbonate or Alu housing) — 4–20 mA input, Single-acting (5310-type mechanics inside 5011 form factor — actually 5011 often = non-Ex single-acting; 5020 = non-Ex double-acting) — “0NG13”: 0=special/std, NG=non-Ex, 13=4–20mA + HART? No — 13 often = 4–20mA only or HART — check: Siemens codes: last two digits indicate comms: 00=basic 4–20mA, 13=HART 4–20mA typically). So 6DR5011-0NG13-0AA0 = Non-Ex, Single-acting, HART 4–20mA input.
- 6DR5020-0NG00-0AA0 → SIPART PS2 Type 5020 — Non-Ex (NG), Double-acting, 4–20 mA input (00 = basic 4–20mA no HART) — Aluminum / Poly housing.
Key advantage: Auto Calibration (Init button or via HART/AMS/Simatic PDM) — mounts on actuator, press Init → goes through full stroke learn → sets zero & span automatically. Built-in diagnostics show valve travel, air consumption, and alert on stiction or linkage problems.
Key Features
- Input Signal: 4–20 mA DC (some variants HART / PROFIBUS PA / FF — check suffix)
- Action: Direct / Reverse selectable via menu
- Pneumatic Output: Single-acting (with bleed) or Double-acting (two ports — boosters inside)
- Air Supply: 1.4–7 bar (20–100 psi typical — check nameplate; dual range versions exist)
- Mounting: NAMUR VDI/VDE 3845 (standard — bracket & coupling kit per actuator type — Fisher, Masoneilan, Rotork, etc. — order separate mounting kit if not included)
- Display: Backlit LCD showing setpoint (%), actual position (%), error codes, bar graph — on “O” (display) versions
- Country of Origin: Germany (Siemens A&D / DI PA AS SM)
Model & Variant Reference (SIPART PS2 6DR5xxx Family — Listed Items)
Model | Enclosure / Ex-Protection | Acting | Input / Comm. | Typical Use |
|---|---|---|---|---|
6DR5320-ONG11-0AA0 | Flameproof (Ex d IIC T6) — Alu/Cu alloy | Double-acting (5320) — some 5320 can be jumpered single — check manual | 4–20 mA (basic — no HART unless suffix says) + Display | Hazardous area — double-acting actuator (2 air lines) |
6DR5011-0NG13-0AA0 | Non-Ex (Std — Polycarb/Alu) | Single-acting (5011 form — single output + exhaust) | 4–20 mA + HART (13 = HART enabled) + Display | General purpose — spring-return actuator |
6DR5020-0NG00-0AA0 | Non-Ex (Std) | Double-acting (5020) | 4–20 mA (basic — no HART) + Display if “O” in code — NG00 = no display? Actually NG00 often = no LCD; NG11 = with LCD — verify by photo/label) | General purpose — double-acting actuator (no HART need) |
6DR5310-ONG11-0AA0 | Flameproof (Ex d) | Single-acting | 4–20 mA + Display | Hazardous area — spring-return actuator |
⚠️ Critical Selection & Installation Notes:
Single vs Double Acting:
Single-acting (Spring-Return actuator) → needs positioner with one output port + exhaust/bleed (air fills to open/close, spring returns on air loss). Use 5011-type (6DR5011-□). Double-acting (No spring or double piston) → needs two output ports (A→port1, B→port2) to push/pull. Use 5020/5320-type (6DR5020-□ / 6DR5320-□). Using single-acting positioner on double-acting actuator won’t develop force in reverse direction! Mounting Kit (NAMUR Bracket & Coupling): SIPART PS2 ships with basic bracketsometimes — but for specific actuator brand (Fisher 657/667, Masoneilan 78/87, Rotork Schischek, Samson 3277 etc.) you need the correct NAMUR mounting kit (feedback lever, pin, screw set) — order separately by actuator model (Siemens kit: e.g., 6DR4004-1N… for Samson, 6DR4004-2N… for Fisher — check Siemens NAMUR kit cross-ref). Auto Init (Calibration): After mechanical mounting & air supply connected (1.4–7 bar filtered, oil-free, dry), power up 4–20mA signal (~12mA mid-stroke), press Init button (or via HART/PDM) → follow prompts (up/down arrows confirm travel limits) → positioner learns full stroke & sets zero/span. Review final error — should be < 0.5%. HART / Bus vs Analog: If you need HART digital comms for asset management (AMS, Simatic PDM) → choose “-NG13-” or “-NG23-” (PROFIBUS PA). Basic 4–20mA (“-NG00-“) has no digital comms — only analog. Fail Mode on Signal Loss: Set via DIP/menu — Fail Safe (go to fail position defined by cam — typically close or open depending on actuator spring) or Hold Last. Verify plant safety requirement before commissioning!
Technical Specifications (Representative — 6DR5020-0NG00-0AA0, Non-Ex Double-Acting, 4–20mA)
Parameter | Specification |
|---|---|
Model / Order Code | 6DR5020-0NG00-0AA0 (Siemens SIPART PS2 Electropneumatic Positioner — Non-Ex, Double-Acting, 4–20mA) |
Series | SIPART PS2 (6DR5xxx) — Microprocessor-based |
Input Signal (Analog Versions) | 4–20 mA DC (passive — loop powered, typical 3.6–30 V DC loop supply) |
Communication Option | None (basic 4–20mA) — “00” suffix; “13” suffix = HART; “23” = PROFIBUS PA; “33” = Foundation Fieldbus |
Actuator Type Supported | Double-acting (2 output ports — A & B) — can be configured for single-acting with plug (not recommended — buy single-acting version for spring-return) |
Air Supply (Supply Pressure Ps) | 1.4 bar (20 psi) min … 7 bar (100 psi) max — recommended: 1.4–6 bar for most process valves (check actuator req.) |
Pneumatic Output | 0 … Ps (proportional to input — internal booster nozzles) |
Dead Band (Adjustable) | 0.1 … 2.0 % of span (factory 0.3%) |
Accuracy (Linearity) | ≤ 0.5 % of span (typical — depends on actuator & feedback linkage) |
Ambient Temp. (Op.) | -40 … +80 °C (Non-Ex version — Ex version may be -40 … +60 °C) |
Enclosure Protection | IP66 / NEMA 4X (polycarbonate or Alu — Non-Ex); IP66 / Flameproof Ex d (Al/Cu alloy — Ex versions) |
Display (if “O” in code) | Backlit LCD — shows setpoint %, actual pos %, error codes, bar graph |
Mounting Standard | VDI/VDE 3845 (NAMUR) — requires actuator-specific feedback lever & pin kit (order separately per actuator brand/model) |
Electrical Connection | M12 5-pin (some) or screw terminals (check variant — Ex d versions often have armored cable gland ½” NPT or M20) |
Weight | ~ 1.2 kg (Non-Ex aluminum); ~ 1.8 kg (Ex d flameproof) |
Standards | CE, FM, CSA, ATEX (Ex d / Ex ia per version), IEC 61508 SIL 2 capable (with appropriate config) |
Software / Commissioning Tool | SIMATIC PDM (via HART / PROFIBUS PA / FF), AMS Device Manager, or onboard pushbuttons + LCD |
Warranty & After-Sales
- Factory new units: 12 months warranty
- Refurbished units: 3-6 months warranty (pneumatic loopback — apply 4/12/20mA → verify output pressure follows setpoint; check auto-init completes)
- Technical support for:
- Model selection confirmation (Single vs Double acting, Ex vs Non-Ex, HART vs Analog — match your actuator & area classification)
- NAMUR mounting kit cross-reference (by actuator brand: Fisher / Samson / Masoneilan / Rotork — e.g., Siemens kit 6DR4004-1N… for Samson 3277, 6DR4004-2N… for Fisher 657)
- Auto-Init / Calibration walkthrough (wiring air supply → power 4–20mA ~12mA → press Init → confirm up/down → save)
- Fail mode & direction setting (Fail Closed / Fail Open / Hold Last — match spring action of actuator)
- HART / PDM connection tips (loop resistor 250Ω min for HART — ensure in series if using non-HART power supply)
- Compatible NAMUR brackets, filter regulators (air set — e.g., Siemens 6DR4004-8… or generic 1/4″ FRL), impulse tubing
Delivery Time
- Standard delivery: 3-5 working days (stock items)
- Express shipping available upon request
Why Choose Our Store
- Genuine Siemens SIPART PS2 positioners — not copies with drifting transducer & poor temp. compensation
- Global supply network with competitive pricing
- Expertise in valve positioner selection (single/double, Ex rating, HART/PA/FF, actuator linkage)
- Comprehensive technical documentation (mounting dwg per actuator, init procedure flowchart, wiring diagram)
- Responsive customer service and support
Applications
- Process Control Valves: Position linear globe / rotary butterfly/ball valves per 4–20mA from DCS/PLC — chemical, oil & gas, pharma, pulp & paper.
- Hazardous Area (Ex d versions): Refinery / petrochemical plants — flameproof enclosure meets Ex d IIC T6.
- Asset Management (HART / PA versions): Integrate with plant asset system (AMS, PDM) — read valve travel time, stiction alerts, partial stroke test.
- Retrofit / Spare: Replace older Sipart PS2 (6DR4000 series) or competitor (Foxboro/Fisher FIELDVUE — if migrating to Siemens for commonality) — verify actuator mounting pattern & air supply compatibility.
- Start-up Commissioning: Auto-calibration drastically reduces loop tuning time vs manual cam-adjust mechanical positioners.





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