Siemens 6DR5010-0NG00-0AA0 — SIPART PS2 Smart Electropneumatic Positioner | 4–20mA | Single-Acting | 3–130mm Stroke | New Genuine

Valve positioners are one of those process instrument categories where the wrong selection — the wrong actuator action type, the wrong enclosure for the area classification, the wrong stroke range for the valve — creates a problem that doesn't reveal itself until commissioning day, or worse, during process startup. The 6DR5010-0NG00-0AA0 is a specific configuration of Siemens' well-established SIPART PS2 Smart positioner line, and understanding exactly what "0NG00-0AA0" encodes is the starting point for confirming it's the right unit for your application.

The short version: this is a 2-wire, 4–20mA, single-acting, non-Ex, polycarbonate enclosure SIPART PS2 positioner. It's the base configuration — no HART, no explosion protection, no limit switch module, no option board — designed for standard process areas where pneumatic valve automation is needed without the added cost of hazardous area certification or fieldbus communication.

✅ Genuine Siemens. New original. Factory sealed.

Technical Specifications

Parameter	Specification
Order Number	6DR5010-0NG00-0AA0
Product Name	SIPART PS2 Smart Electropneumatic Positioner
Input Signal	4–20mA (2-wire, loop-powered)
Communication	None (no HART on this variant)
Actuator Action	Single-acting
Enclosure Material	Polycarbonate (PC)
Explosion Protection	None (standard area only)
Position Sensing	Non-contacting (NCS) — magnetic, wear-free
Supply Air Pressure	1.4 to 7 bar (20 to 101.5 psi)
Air Consumption	~0.09 Nm³/h at 1.4 bar (standstill)
Linear Stroke Range	3 to 130 mm (adjustable)
Rotary Angle Range	30° to 100° (part-turn actuators)
Electrical Connection	M20 × 1.5 cable gland thread
Pneumatic Connection	G 1/4 (pipe thread)
Input Impedance	≤ 670 Ω at 20mA (loop-powered)
Operating Temperature	–30°C to +80°C
Storage Temperature	–40°C to +80°C
Protection Rating	IP66
Humidity	5–100% RH (with condensation)
Hysteresis	< 0.3% of stroke
Sensitivity	< 0.1% of stroke
Fail-Safe Behavior	Depressurizes actuator on loss of electrical power (single-acting)
Display	2-line LCD, alphanumeric
Configuration	3 front panel pushbuttons + display, or SIMATIC PDM (HART required for remote)
Weight	Approx. 0.9 kg
Mounting	NAMUR mounting (IEC 60534-6 / VDI/VDE 3847)
Certifications	CE, RoHS
Condition	New Original / Factory Sealed
Country of Origin	France

What Makes SIPART PS2 "Smart" — The NCS Position Sensor

Older electropneumatic positioners use a mechanical potentiometer coupled to the valve stem or actuator shaft to measure position. The potentiometer wiper rides against a resistive track, and over time — in the presence of vibration, temperature cycling, and the constant small movements that a positioner makes — that wiper wears a groove in the track and the resistance becomes noisy and unreliable.

The SIPART PS2 Smart eliminates this wear mechanism entirely through NCS (Non-Contacting Sensing) — a magnetic position detection system where a permanent magnet attached to the actuator shaft passes over a Hall-effect sensor array in the positioner housing. There's no physical contact, no wear, no drift from mechanical wear. The position reading is as accurate after ten years of continuous operation as it was on day one.

For process plants where valve positioners are in continuous service — flow control loops that modulate constantly, pressure control valves that hunt around setpoint — the elimination of mechanical wear in the position sensor has a measurable effect on instrument maintenance intervals and replacement frequency. This is the primary reason process engineers specify SIPART PS2 Smart over older potentiometer-based positioners even when cost pressure is present.

Single-Acting vs Double-Acting — Which Does This Positioner Drive?

The "single-acting" specification in 6DR5010-0NG00-0AA0 defines the pneumatic output configuration and directly determines which actuator types it can drive.

Single-acting positioner (this unit): Has one pneumatic output. The positioner pressurizes or vents this single output to move the actuator. The actuator must have a return spring — when the positioner output is vented (including during a power failure), the spring returns the valve to its safe position (typically fully open or fully closed, depending on how the spring is oriented). This is the standard configuration for most globe valves and single-acting quarter-turn actuators in process control.

Double-acting positioner (different order number — 6DR5020-series): Has two pneumatic outputs. The positioner pressurizes output A to move in one direction and pressurizes output B to move in the other direction. The actuator has no return spring — both directions of travel require pressurized air. This configuration is used for large-bore actuators where a return spring would be impractically large, or for applications requiring faster stroking speeds in both directions.

Fail-safe behavior difference: With a single-acting positioner and spring-return actuator, the fail-safe valve position (power failure = spring drives valve to end stop) is entirely predictable and mechanical — no electronics, no solenoid, no pneumatic control required. With double-acting, the fail position on power loss depends on a solenoid valve in the supply line. Single-acting is generally the simpler and more inherently safe configuration for standard control valves.

Auto-Calibration and Commissioning — How It Actually Works

One of the practical advantages of the SIPART PS2 over older analog positioners is the automatic self-calibration sequence. Instead of manually adjusting span and zero potentiometers until the valve position matches the 4–20mA input — a tedious process that typically requires two people, one at the valve and one at the current source — the PS2 runs an automatic initialization routine:

Press and hold the configuration button to enter the initialization mode. The positioner drives the actuator to both end stops, measures the total available stroke or rotation angle, sets the zero and span internally, characterizes the mechanical dead zone (the minimum air volume change needed to produce detectable movement), and stores all parameters in non-volatile memory. The whole process takes a few minutes and requires no manual adjustment of mechanical stops or span screws.

After initialization, the positioner operates as a five-point predictive controller — rather than simply comparing current position to setpoint and applying proportional output, it predicts where the valve will be in the next control cycle and adjusts output proactively. This predictive algorithm reduces hunting (overshoot and continuous small oscillations around setpoint) that plagues simpler on/off or proportional positioner designs, particularly on sticky or stiff valves.

Key Differences Between SIPART PS2 Variants — Choosing the Right Version

The SIPART PS2 family covers a wide range of configurations. The most important selection parameters and how they map to order numbers:

Configuration Parameter	This Unit (0NG00)	HART Version	Ex-Rated Version	Double-Acting
Enclosure	Polycarbonate	Polycarbonate	Polycarbonate or Aluminum	Polycarbonate
Ex Protection	None	None	ATEX/IECEx Zone 1/2	None
Communication	4–20mA only	4–20mA + HART	4–20mA + HART	4–20mA
Actuator Type	Single-acting	Single-acting	Single-acting	Double-acting
Remote Config	Local only	HART + SIMATIC PDM	HART + SIMATIC PDM	Local only
Typical Order#	6DR5010-0NG00-0AA0	6DR5010-0NG01-0AA0	6DR5010-0EG01-0AA0	6DR5020-0NG00-0AA0

Before ordering, confirm: (1) Is the installation area classified as hazardous? If yes, the 0N non-Ex version is not the correct choice. (2) Does remote valve diagnostics via HART/SIMATIC PDM need to be available? If yes, choose the HART version (0NG01 suffix). (3) Is the actuator single-acting (spring return) or double-acting (no spring)? These are different product lines.

Typical Process Industry Applications

Oil refinery and petrochemical plants — flow control valves on non-hazardous utility systems (cooling water, plant air, instrument air distribution), where the basic 4–20mA non-Ex version is appropriate for the area classification and HART is not required.

Power generation — boiler feedwater control valves, steam admission valves, and condenser level control in areas classified as non-hazardous. The –30°C to +80°C operating temperature range covers turbine building ambient extremes.

Water and wastewater treatment — flow splitting valves, filter backwash control, chemical dosing valve actuators. The IP66 polycarbonate enclosure handles outdoor installations and washdown environments.

Pulp and paper mills — stock flow control, white water valves, and chemical addition points on the machine wet end, where valve positioner reliability directly affects paper quality consistency.

Food and beverage processing — clean utility (CIP water, steam, CO₂) valve automation in non-hazardous areas of the plant. The polycarbonate enclosure withstands the cleaning chemistry environments typical of food plant utility areas.

General chemical processing — any control valve application in Zone 2/non-hazardous areas where the valve requires continuous modulating position control and simple 4–20mA setpoint input from a DCS or PLC analog output.

❓ FAQ — Siemens 6DR5010-0NG00-0AA0

Q1: What does "0NG00-0AA0" mean — how do I know if this is the right variant for my application?

Each character encodes a specific configuration choice. "0N" = polycarbonate enclosure, no explosion protection — this positioner is for non-hazardous areas only. "G" = 2-wire, 4–20mA input, no HART. "00" = no limit switch module. "0AA0" = standard international version, no pressure gauge block. If your installation is in a hazardous area (ATEX Zone 1 or 2, IECEx, FM Division 1 or 2), you need the "0EG" or "0GG" explosion-protected variant. If you need HART communication for remote diagnostics or integration with a HART-capable DCS, you need the "H" communication code variant (6DR5010-0NH00-0AA0 or similar). If your actuator is double-acting (no spring return), you need the 6DR5020 series, not this unit.

Q2: This says "single-acting" — what does that mean for my valve installation?

Single-acting means the positioner has one pneumatic output port. Air pressure from the positioner drives the actuator in one direction; the actuator's internal return spring drives it back when the positioner vents the output. For this to work, your actuator must be a spring-return type — either a spring-return linear actuator (the most common type for globe and cage-guided valves) or a spring-return quarter-turn actuator (for ball or butterfly valves). If your actuator has no spring and requires air pressure for both directions of travel, you need a double-acting positioner (6DR5020 series). The fail-safe valve position on a single-acting installation is determined by the spring orientation in the actuator — air-to-open (spring closes on power loss) or air-to-close (spring opens on power loss) — and is set mechanically at the valve, not in the positioner.

Q3: Can I configure this positioner remotely, or does everything have to be done at the valve?

The 6DR5010-0NG00-0AA0 has no HART communication — the "G" position in the order number specifies 4–20mA only. All configuration and diagnostics must be performed locally using the three front panel buttons and the 2-line display on the positioner body. If remote configuration via SIMATIC PDM (Process Device Manager) or any HART-compatible asset management tool is needed, you require the HART version — 6DR5010-0NG01-0AA0 (same enclosure and Ex class, adds HART to the 4–20mA loop). The HART version supports both local button configuration and full remote access via SIMATIC PDM over the existing 4–20mA wiring.

Q4: What supply air pressure and quality does this positioner require?

Supply air pressure range is 1.4 to 7 bar (20 to 101.5 psi). Air quality must meet ISA S7.0.01 / ISO 8573-1 Class 3 or better — instrument quality compressed air, dried to a dew point at least 10°C below the minimum expected ambient temperature, filtered to remove particles larger than 5 microns, and oil content below 1 ppm. Contaminated supply air is the most common cause of premature positioner failure and unstable valve control. The G 1/4 pneumatic connection thread (BSP parallel) is the standard instrument air connection for this size of positioner. Ensure the connection thread type matches your plant's instrument air distribution system — G 1/4 BSP is standard in European and Asian plants; NPT 1/4" is common in North American plants and requires an adapter or a different positioner variant.

Q5: The positioner has IP66 rating but the enclosure is polycarbonate — is it suitable for outdoor installation?

Yes, with attention to mounting orientation. The IP66 rating confirms full protection against dust ingress and high-pressure water jets from any direction, making outdoor installation entirely acceptable from a moisture protection standpoint. The polycarbonate enclosure is UV-stabilized and impact-resistant, suitable for most outdoor industrial environments. The consideration for outdoor installation is mounting orientation: the cable entry and vent/silencer on the positioner body should be oriented downward (or at minimum, not upward) to prevent water from pooling at seals. Siemens' installation guidance recommends specific mounting precautions for "unfavorable" orientations, including routing a short length of tubing from the vent port to ensure condensate drain. The operating temperature range of –30°C to +80°C covers typical outdoor ambient extremes in most industrial climates.

Q6: My existing valve has a potentiometer-based positioner. Can SIPART PS2 replace it directly?

In most cases yes, with the same mounting bracket. The SIPART PS2 uses NAMUR-standard mounting (IEC 60534-6 for linear actuators, VDI/VDE 3847 for part-turn) which is the same standard used by Foxboro, Fisher, Masoneilan, Rotork, and other major positioner manufacturers. If the existing positioner used NAMUR mounting, the PS2 can typically mount on the existing bracket without modification. The mechanical coupling to the valve stem or rotary shaft uses the PS2's fixable friction clutch (slipping clutch) mechanism, which accommodates the full 3–130mm linear stroke range and 30°–100° rotary angle range without requiring stroke-specific mechanical inserts. The 4–20mA wiring from the DCS/PLC analog output connects to the same loop terminals. In most replacement installations, the auto-calibration sequence re-characterizes the new positioner to the specific actuator without any external adjustment.

Q7: What diagnostics does this positioner provide, and how do I interpret the display codes?

The SIPART PS2 provides diagnostic information through the 2-line alphanumeric display. In normal operation, the display shows the current setpoint and actual position as a percentage. Fault codes appear on the display as alphanumeric codes — for example: "E1" indicates a setpoint signal fault (4–20mA input below 3.6mA, suggesting a wiring break or loop power failure); "E2" indicates a position deviation fault (the valve is not reaching the commanded position within the allowed time — often caused by insufficient supply air pressure, a mechanical obstruction, or a failed actuator diaphragm); "E5" indicates a configuration data error (run the auto-calibration sequence again). The positioner also monitors for air leakage by tracking how often the control valves cycle to maintain position — excessive cycling without external setpoint changes indicates a leaking valve seat or actuator diaphragm, providing early warning before a catastrophic failure. Full fault code documentation is in the SIPART PS2 operating instructions, available from Siemens Industry Online Support under document A5E00074631.

6DR5010-0NG00-0AA0 Genuine 6DR50100NG000AA0 Siemens Electropneumatic Positioner