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Finder 7S.14.9.024.0220 Forced Guided Contact Safety Relay Module
- Interpretation des Modellcodes
| Segment | Code | Bedeutung |
| Seriencode | 7S | Finder 7S series forced guided contact safety relay module, konform mit EN 50205:2002 Typ A |
| Kontaktkonfiguration | 14 | 4-Pole, 2 Normalerweise geöffnet + 2 Normally Closed contacts |
| Montage & Terminal | 9 | DIN-Schienenmontage, cage-clamp terminal, 22.5mm Breite |
| Spulenspannung | 24 | 24V DC control coil |
| Version & Besonderheit | 220 | Standard version without extra functions |
- Kernspezifikationstabelle
| Kategorie | Parameter | Bemerkungen |
| Grundlegende Informationen | ||
| Hersteller | Finder | Famous Italian relay brand |
| Produkttyp | Forced guided contact safety relay module | Non-latching type |
| Bestellnummer | 7S.14.9.024.0220 / 7S1490240220 | Two formats are both applicable |
| Elektrische Parameter | ||
| Spulenspannung | 24In DC | Standard industrial control voltage |
| Spulenstromverbrauch | 1.2W | Typical value |
| Contact Arrangement | 2NO+2NC (4P) | Forced guided design for synchronous contact operation |
| Nennstrom | 6A bei 250 V AC (AC-1) | Rated value for different load types |
| 6A @ 30V DC (DC-1) | ||
| 3A @ 230V AC (AC-15) | ||
| Kontaktmaterial | AgNi Silver Nickel Alloy | High conductivity and wear resistance |
| Mechanisch & Umgebungsparameter | ||
| Installationstyp | DIN-Schiene (IN 60715) | 22.5mm compact width |
| Terminaltyp | Cage-clamp | Screwless wiring, einfache Installation |
| Schutzgrad | IP20 | Fingersicher, suitable for cabinet interior |
| Betriebstemperatur | -40°C ~ +70°C | Wide temperature range for industrial use |
| Lagertemperatur | -40°C ~ +85°C | |
| Zertifizierung | IN 50205:2002 Typ A, IN 13849-1 | International safety relay standards |
| Lebensdauer | Mechanisch: 10⁷ operations | |
| Elektrisch: 10⁵ operations at rated load |
- Cross-brand Replacement Reference
| Marke | Modell | Similarities | Unterschiede |
| Pilz | PNOZ X2.8P 24VDC | 2NO+2NC, 24VDC, forced guided contact | Professional safety relay, higher price and richer functions |
| Siemens | 3TK2825-1BB40 | 2NO+2NC, 24VDC, DIN rail mount | Better compatibility in industrial automation |
| Schneider | Zelio SR2B121BD | 2NO+2NC, 24VDC, forced guided contact | Different terminal design, kostengünstig |
| Omron | G9SA-321-T075 | 2NO+2NC, 24VDC, safety certified | Kompakte Größe, ideal for limited space |
- 7S Series Main Model List
| Modell | Contact Layout | Spulenspannung | Terminaltyp | Besonderheit |
| 7S.12.9.024.0220 | 2P (1NO+1NC) | 24In DC | Cage-clamp | Standard |
| 7S.14.9.024.0220 | 4P (2NO+2NC) | 24In DC | Cage-clamp | Standard (this product) |
| 7S.16.9.024.0220 | 6P (3NEIN+3Ö) | 24In DC | Cage-clamp | Standard |
| 7S.14.9.230.0220 | 4P (2NO+2NC) | 230V und | Cage-clamp | Standard |
| 7S.14.9.024.4220 | 4P (2NO+2NC) | 24In DC | Cage-clamp | LED status indicator |
| 7S.14.9.024.5220 | 4P (2NO+2NC) | 24In DC | Schraubklemme | Standard |
| 7S.34.9.024.0220 | 4P (2NO+2NC) | 24In DC | Cage-clamp | 10Ein Nennstrom |
- Fehlerbehebung & Wartungshandbuch
5.1 Common Fault Analysis
| Fehlerphänomen | Mögliche Ursachen | Inspektionsschritte |
| Coil fails to pull in | 1. Insufficient or reversed coil voltage | 1. Measure coil voltage to confirm 24V DC |
| 2. Burnt coil | 2. Test coil resistance (Normal: approx 480Ω) | |
| 3. Lose Verkabelung | 3. Check terminal tightness | |
| No contact movement | 1. Jammed forced guided mechanism | 1. Check mechanical flexibility after power off |
| 2. Oxidized or burnt contacts | 2. Inspect contact surface damage | |
| 3. Mechanical wear | 3. Verify contact travel distance | |
| Kontakt klemmt | 1. Arc burn caused by overload or short circuit | 1. Check actual load exceeding rating |
| 2. Contact material fatigue | 2. Replace relay module | |
| LED indicator off | 1. Damaged LED | 1. Check power supply connection |
| 2. Power disconnection | 2. Replace with identical module for test | |
| 3. Internal circuit failure |
5.2 Wartung & Replacement Suggestion
- Safety Priority: Cut off power and wait at least 5 minutes for capacitor discharge before maintenance.
- Modularer Aufbau: On-site repair is not recommended; integral replacement is preferred.
- Replacement Procedure
Record wiring positions by photos or sketches
Remove old module from DIN rail
Install new module and reconnect wires accordingly
Power on and verify normal operation
- Vorbeugende Wartung
Inspect terminal connection every 6 Monate
Avoid overload, reservieren 30% current margin
Shorten replacement cycle to 2-3 years under harsh conditions
- Anwendungsszenarien & Branchenfälle
6.1 Anwendbare Felder
| Industrie | Typische Anwendung | Sicherheitsfunktion |
| Machinery Manufacturing | Emergency stop circuit, safety door monitoring | Prevent accidental startup, protect operators |
| Automatic Production Line | Sicherheitslichtvorhang, two-hand control circuit | Secure operating area safety |
| Elevator & Escalator | Door lock monitoring, safety loop | Avoid unexpected elevator movement |
| Schienenverkehr | Door control, braking system | Comply with railway safety standards |
| Verpackungsmaschinen | Guardrail monitoring, Not-Aus | Personnel injury prevention |
6.2 Inadmissible Working Conditions
High vibration environment such as stamping machines, shockproof bracket required
Humid and dusty environment, IP54+ sealed enclosure needed
Ultra-high frequent switching over 10 cycles per minute, solid state relay recommended
High current load over 6A / 250V und, contactor required for capacity expansion
6.3 Auswahltipps & Avoidance Notes
- Distinguish forced guided contact from ordinary relay; IN 50205 compliant type mandatory for safety application
- Confirm coil voltage, avoid AC and DC confusion; this model is 24V DC
- Match load type with corresponding rated current (AC-1/AC-15/DC-1)
- Reserve enough installation space for 22.5mm width module
- Ensure compliance with EN 13849-1 for industrial safety usage
Application Scenarios of Finder 7S.14.9.024.0220
Equipped with forced guided safety contacts, conforming to EN13849 and EN50205 safety standards, applied for equipment safety loop control.
- General Industrial Machinery
- Werkzeugmaschinen: Emergency stop circuit, safety door interlock, tool magazine safety lock
- Stamping & forging machines: Guard fence detection, slide safety limit
- Spritzgießmaschinen: Mold safety door, manipulator area protection interlock
- Automatic Production Line
- Conveyor line: Light curtain safety protection, station access judgment
- Assembly equipment: Two-hand startup circuit, robot fence access control
- Sorting & Verpackungsmaschinen: Flip cover protection, fault emergency stop interlock
- Heben & Hoisting Equipment
- Small lift, cargo elevator door control safety circuit
- Crane lifting tool limit protection, power-off safety lock
- Leichtindustrie & Special Machinery
- Safety stop interlock for printing and textile machinery
- Safety door monitoring for wood cutting equipment
- Fault power-off protection for fans and water pumps
- Transportation & Building Auxiliary
- Automatic door and escalator safety detection circuit
- Vehicle industrial control, miniature railway equipment safety protection
- Control Cabinet Internal Control
- System emergency power-off safety loop
- High voltage cabinet access control and leakage safety interlock
Unsuitable Environments
Non-sealed cabinet with strong corrosion and heavy dust
Ultra-high frequency switching working condition
Working current exceeding 6A rated load
