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This is a potentiometer-type axis interface module for Festo SPC200 series servo positioning controllers, Bestellnummer 170228. It is designed to connect potentiometric displacement sensors and proportional valves. This product has been discontinued, and the corresponding models of the SPC11 series are recommended as replacements.
- Erklärung des Modellcodes
| Modellsegment | Definition | Beschreibung |
| SPC | Smart Positioning Controller | Series of smart positioning controllers for pneumatic and electric positioning systems |
| AIF | Axis Interface | Axis interface module for connecting sensors and actuators |
| POT | Potentiometer | Potentiometer type, compatible with potentiometric displacement sensors |
| 170228 | Manufacturer Order Number | Unique official part number of Festo |
- Wichtigste technische Spezifikationen
| Kategorie | Technische Daten | Bemerkungen |
| Allgemeine Informationen | ||
| Produkttyp | Achsenschnittstellenmodul | For SPC200 series controllers |
| Bestell-Nr. | 170228 | Manufacturer part number |
| Gewicht | 0.32 kg (ca. 300G) | Slight deviation among different batches |
| Produktstatus | Auslaufmodell | No official direct replacement provided by the manufacturer |
| Elektrische Parameter | ||
| Betriebsspannung | DC 24V | Permissible fluctuation: ±25% |
| Maximum Current Consumption | With proportional valve: 1.1A | Under standard operating conditions |
| Without proportional valve: 70mA | ||
| Input Current Consumption | 4mA | For control signal input |
| Nennausgangsstrom | 100mA pro Kanal | For control signal output |
| Interface Specifications | ||
| Proportional Valve Port | 7-pin M9 circular connector | Standard connection |
| Displacement Sensor Port | Type A cable with connector | Compliant with DIN 43650 Standard |
| AIF IN Port | 5-pin M9 circular connector | Signal input |
| AIF OUT Port | 15-pin Sub-D connector | Signal output |
| Umgebungsparameter | ||
| Betriebstemperatur | 0…+40°C | Standard industrial environment |
| Lagertemperatur | -25…+60°C | For transportation and storage |
| Relative Luftfeuchtigkeit | 10…95% | Nicht kondensierend |
| Schutzklasse | IP20 | For installation inside control cabinets |
- Cross-brand & Old/New Model Replacement List
| Originalmodell | Ersatzmodell | Marke | Ersatzbeschreibung |
| SPC-AIF-POT (170228) | SPC11-POT-LWG (192217) | Festo | SPC200 series upgraded to SPC11 series, fully compatible in functions |
| SPC11-POT-TLF (192216) | |||
| SPC-AIF-POT (170228) | SPC-AIF-POT-LWG | Festo | Enhanced version of the same series, suitable for longer-stroke sensors |
| SPC-AIF-POT (170228) | – | Third Party | No fully equivalent alternative available. Festo original upgraded solutions are recommended |
Auswahltipp: SPC200 for legacy use, SPC11 for new projects; POT stands for potentiometer, LWG/TLF indicates applicable stroke range.
Full Model List (SPC200 Axis Interface Modules)
| Modell | Bestell-Nr. | Sensortyp | Hauptanwendung |
| SPC-AIF-POT | 170228 | Potentiometric Displacement Sensor | Pneumatic/electric positioning systems, short-stroke applications |
| SPC-AIF-MTS | 170231 | MTS Magnetostrictive Sensor | High-precision and long-stroke applications |
| SPC-AIF-ANA | 170229 | Analog Sensor (0-10V/4-20mA) | General analog feedback systems |
| SPC-AIF-DIG | 170230 | Digital Sensor | High-speed digital signal feedback systems |
| SPC-AIF-ENC | 170232 | Encoder | Stepper motor positioning systems |
- Häufige Fehler & Leitfaden zur Fehlerbehebung
| Fehlerphänomen | Mögliche Ursachen | Schritte zur Fehlerbehebung | Lösungen |
| No signal from sensor | 1. Falsche Verkabelung | 1. Check wiring of DIN 43650 Hafen | 1. Rewire in accordance with manual |
| 2. Module power failure | 2. Measure DC 24V power supply | 2. Repair power circuit | |
| 3. Damaged sensor | 3. Test sensor resistance with multimeter | 3. Replace the sensor | |
| Proportional valve fails to operate | 1. Poor contact of 7-pin M9 connector | 1. Check connector locking status | 1. Reconnect and lock the connector |
| 2. Insufficient output current | 2. Measure output current (≤100mA) | 2. Inspect module output circuit | |
| 3. Damaged proportional valve | 3. Test with a spare valve | 3. Replace the proportional valve | |
| Low positioning accuracy | 1. Potentiometer drift | 1. Re-calibrate potentiometer zero point | 1. Run SPC200 calibration procedure |
| 2. Poor module grounding | 2. Check PE connection | 2. Ensure single-point grounding | |
| 3. Signal interference | 3. Abschirmmaßnahmen hinzufügen | 3. Use shielded cables and ground properly | |
| Abnormal overheating of module | 1. Overload operation | 1. Check current consumption (≤1.1A) | 1. Reduce load or replace with higher-capacity module |
| 2. Schlechte Belüftung | 2. Ensure good ventilation of control cabinet | 2. Improve ventilation conditions | |
| 3. Internal component failure | 3. Measure module temperature | 3. Replace the module |
- Anwendungsumgebungen & Branchenfälle
6.1 Anwendbare Szenarien
Pneumatic Positioning System: Combined with SPC200 controller to realize precise positioning of DNCI, DGCI and other cylinders.
Electric Positioning System: Matched with stepper motors for basic point-to-point positioning.
Hybrid Drive System: Featured function of SPC200 series, capable of controlling pneumatic and electric axes simultaneously.
Allgemeine industrielle Automatisierung: Automobil, Elektronik, Lebensmittelverpackung, handling and assembly industries.
6.2 Nicht empfohlene Szenarien
Ultra-high precision requirements (below ±0.01mm): Replace with SPC-AIF-MTS or SPC11 series.
Raue Umgebungen (Protection class higher than IP20 required): Additional protective measures are needed.
Long-stroke applications (>1000mm): Potentiometer will produce larger linearity error; magnetostrictive sensor solution is recommended.
6.3 Typische Anwendungsfälle
Automotive Component Assembly Line
Anwendung: Z-axis positioning for robots installing door sealing strips
Konfiguration: SPC200/P04 Controller + SPC-AIF-POT (170228) + DNC Cylinder + Potentiometric Sensor
Outcome: Achieves positioning accuracy of ±0.1mm, improves assembly consistency and reduces rework rate.
Electronic Component Testing Equipment
Anwendung: XY-axis positioning for PCB thickness inspection platform
Konfiguration: SPC200/P05 Controller + 2 pcs SPC-AIF-POT Modules + Electric Slide + Potentiometric Sensor
Outcome: Enables fast point movement, cuts testing cycle by 30% and boosts production capacity.
- Installation & Wartungsrichtlinien
- Einbaulage: Im Schaltschrank installieren, keep away from direct sunlight and vibration sources. Reserve a heat dissipation space of ≥50mm.
- Verkabelungsregeln
Separate sensor cables from power cables with a spacing of ≥100mm.
Single-point grounding for shielding layer; grounding at the controller side is preferred.
- Regelmäßige Wartung
Inspect connector connections and cable aging every 6 Monate.
Calibrate potentiometer zero point once a year to guarantee positioning accuracy.
- Upgrade Solution: For system upgrade, replace with SPC11 series controllers and matching interface modules directly. Performance will be increased by 30% with lower maintenance costs.
Practical Application Cases for SPC-AIF-POT (170228)
All cases below adopt the classic solution: Pneumatic closed-loop positioning + MLO-POT potentiometer feedback + MPYE proportional valve + SPC200 controller.
- Automotive Industry: Door / Sunroof Sealing Strip Press-Fitting (High Repeat Accuracy, Short Stroke)
Konfiguration
Regler: SPC200-P04
Axis Interface: SPC-AIF-POT (170228)
Cylinder: DNCI-32-200-KF (with potentiometer mounting groove)
Sensor: MLO-POT-200-TLF (200 mm potentiometer)
Proportional Valve: MPYE-5/3-010 (5/3-position closed center)
Process
Press-fit sealing strips with positioning accuracy of ±0.1 mm. Working sequence: Fast approach → Low-speed pressing → Pressure holding → Retraction.
Outcome
Replaces mechanical stops and limit switches for better consistency and lower rework rate. Stable cycle, suitable for 24-hour continuous production lines.
- 3C Electronics: XY-axis Positioning for PCB Test Bench (Multi-axis, Light Load, High Frequency)
Konfiguration (Dual-axis)
Regler: SPC200-P05 (2-axis capable)
Axis Interface: 2 × SPC-AIF-POT (170228)
Slide/Cylinder: DGCI-25-300-KF (horizontally mounted)
Sensor: MLO-POT-300-LWG (long-stroke potentiometer)
Proportional Valve: MPYE-5/3-008
Process
Probe bench moves to multiple test points with point positioning accuracy of ±0.15 mm and frequent start-stop operation.
Outcome
Commissioning time reduced by 70% compared with cylinder + mechanical stop solutions. Positions can be adjusted via software. No impact during operation to extend probe service life.
- Essen & Verpackung: Carton Folding & Sealing Positioning (Low Cost, Medium Accuracy, Dust Environment)
Konfiguration
Regler: SPC200-P03
Axis Interface: SPC-AIF-POT (170228)
Cylinder: DNC-40-150-PPV
Sensor: MLO-POT-150-TLF
Proportional Valve: MPYE-5/2-010
Process
Carton folding and capping with adjustable pressing depth and soft landing to avoid carton damage.
Outcome
Dual control of pressure and position via potentiometer feedback and proportional valve lowers defective rate. Stable long-term operation in dusty environment with IP20 cabinet installation.
- Machine Tool & Metallbearbeitung: Tailstock Center / Fixture Positioning (Heavy Load, Short Stroke, Force & Positionskontrolle)
Konfiguration
Regler: SPC200-P04
Axis Interface: SPC-AIF-POT (170228)
Cylinder: DGPL-63-100-KF (heavy-duty linear drive)
Sensor: MLO-POT-100-TLF
Proportional Valve: MPYE-5/3-015 (high flow rate)
Process
Tailstock feeding sequence: Fast forward → Low-speed clamping → Constant force holding → Retraction.
Outcome
SPC200 force and position closed-loop control replaces hydraulic clamping, featuring lower cost and easier maintenance. No oil leakage, ideal for dry machining and low-oil working conditions.
- Injection Molding & Mould: Precision Ejector Pin Control (Synchronous Multi-axis, Anti-sticking)
Konfiguration (3 synchronous axes)
Regler: SPC200-P05 + Erweiterungsmodul
Axis Interface: 3 × SPC-AIF-POT (170228)
Cylinder: DNCI-25-125-KF
Sensor: MLO-POT-125-TLF
Proportional Valve: MPYE-5/3-008
Process
Multi-point ejection with synchronous error less than 0.2 mm to prevent plastic part deformation and mould sticking.
Outcome
Synchronous closed-loop control ensures uniform ejection and fewer defective products. Soft start and soft stop functions reduce impact and mould wear.
- General Automation: Lifting Axis for Handling & Pick-and-Place (Vertical Load, Medium Stroke, Anti-fall)
Konfiguration
Regler: SPC200-P04
Axis Interface: SPC-AIF-POT (170228)
Cylinder: DGCI-32-500-KF (vertically mounted with locking function)
Sensor: MLO-POT-500-LWG
Proportional Valve: MPYE-5/3-010
Process
Lifting and pick-and-place operation with soft landing and position memory, maintaining position after power cut-off.
Outcome
Absolute position feedback by potentiometer eliminates homing after power-on. Stable operation of vertical axis without jitter. Perfect for handling stations with frequent start-stop and multi-position parking.
Auswahl & Ersatzhinweise (On-site Application)
SPC-AIF-POT (170228): Matches MLO-POT-…-TLG/TLF, for short and medium strokes with cost advantages.
SPC-AIF-POT-LWG: Matches MLO-POT-…-LWG, for longer strokes up to 1000–2000 mm.
Discontinued Replacement: Prioritize SPC11-POT-L/T (192217/192216) for new projects as direct substitutes for SPC200 system.
