1. Introduktion
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the PILZ PNOZ/X7/24VAC/DC Safety Relay. Please read this manual thoroughly before using the device and keep it for future reference. Adherence to these instructions is crucial for ensuring proper function and preventing hazards.
The PILZ PNOZ/X7/24VAC/DC is a safety relay designed for monitoring E-stop buttons and safety gates. It features 1-channel wiring, 2 normally open (NO) contacts, and automatic reset functionality, operating on 24VAC/DC power.
2. Sikkerhedsoplysninger
ADVARSEL:
- Installation, commissioning, and maintenance must only be carried out by qualified electricians.
- Observe all national and international safety regulations and standards.
- Disconnect power before performing any work on the device.
- Do not bypass or disable safety functions.
- Ensure proper grounding and wiring according to the provided diagrams.
3. Produktet er slutview
The PILZ PNOZ/X7/24VAC/DC safety relay is a compact device designed for reliable safety circuit monitoring. It features clear terminal markings and status indicators for easy diagnostics.

Figur 1: Front view of the PILZ PNOZ/X7/24VAC/DC Safety Relay. This image displays the yellow and green housing, with clearly labeled terminals A1, 13, 23 at the top, and A2, 14, 24, Y1, Y2 at the bottom. Two LED indicators are visible: "POWER" and "CH.1/CH.2", indicating the operational status of the relay and its channels. The model name "pilz PNOZ X7" is printed on the front.
Nøglefunktioner omfatter:
- Compact 22.5mm width.
- Automatisk nulstillingsfunktion.
- 2 Normally Open (NO) safety contacts.
- LED indicators for power and channel status.
- Suitable for E-stop monitoring and safety gate applications.
4. Opsætning og installation
4.1 Montering
The PNOZ/X7/24VAC/DC is designed for DIN rail mounting. Ensure adequate ventilation around the device.
- Mount the safety relay on a standard 35mm DIN rail in a control cabinet.
- Ensure secure fastening to prevent vibration.
4.2 Ledningsføring
Refer to the wiring diagram below for correct connection. All connections must comply with local electrical codes.

Figur 2: Close-up of the PILZ PNOZ/X7/24VAC/DC terminals. The top terminals are A1 (power input), 13, and 23 (safety outputs). The bottom terminals are A2 (power return), 14, 24 (safety outputs), and Y1, Y2 (feedback loop/reset). This view highlights the screw terminals for electrical connections.
- Power Supply (24VAC/DC): Connect the positive supply to terminal A1 and the negative/neutral to terminal A2.
- Input Circuit (E-Stop/Safety Gate): Connect the safety device (e.g., E-stop button) across terminals Y1 and Y2. For 1-channel wiring, ensure the circuit is closed when the safety device is active.
- Output kontakter: Terminals 13-14 and 23-24 are normally open (NO) safety contacts. Connect these to the control circuit of the machinery to be controlled.
- Feedback loop: For automatic reset, the feedback loop (Y1-Y2) must be closed.
VIGTIG:
Always verify wiring against the specific application requirements and the detailed wiring diagrams provided in the full product documentation from PILZ.
5. Betjeningsvejledning
The PNOZ/X7/24VAC/DC operates with an automatic reset function. Once the safety circuit is closed and the input conditions are met, the output contacts will close automatically.
5.1 Opstart
- Sørg for, at alle ledninger er korrekte og sikre.
- Apply 24VAC/DC power to terminals A1 and A2.
- The "POWER" LED indicator will illuminate.
5.2 Normal drift
- When the safety input (e.g., E-stop released, safety gate closed) is active, the "CH.1/CH.2" LED will illuminate.
- The safety output contacts (13-14, 23-24) will close, allowing the machine to operate.
5.3 Safety Function Activation
- If the safety input is interrupted (e.g., E-stop pressed, safety gate opened), the "CH.1/CH.2" LED will extinguish.
- The safety output contacts (13-14, 23-24) will open immediately, bringing the machine to a safe stop.
5.4 Automatisk nulstilling
Once the safety input condition is restored (e.g., E-stop released, safety gate closed), the PNOZ/X7/24VAC/DC will automatically reset, and the output contacts will close again, provided no faults are detected.
6. Vedligeholdelse
The PILZ PNOZ/X7/24VAC/DC safety relay is designed for minimal maintenance. Regular inspections are recommended to ensure continued safe operation.
6.1 Rutinemæssige kontroller
- Visuel inspektion: Periodically check the device for any signs of damage, discoloration, or loose connections.
- Funktionstest: Regularly test the entire safety circuit, including the E-stop buttons and safety gates, to ensure the safety relay correctly de-energizes the outputs.
- LED-indikatorer: Verify that the "POWER" and "CH.1/CH.2" LEDs illuminate and extinguish as expected during operation and safety function activation.
6.2 Rengøring
If cleaning is necessary, disconnect power and use a soft, dry cloth. Do not use abrasive cleaners or solvents.
FORSIGTIGHED:
Do not attempt to open or repair the device. Refer all servicing to authorized personnel.
7. Fejlfinding
Dette afsnit indeholder vejledning til almindelige problemer. Ved komplekse problemer skal du kontakte PILZ's tekniske support.
| Problem | Mulig årsag | Løsning |
|---|---|---|
| "POWER" LED off | Ingen strømforsyning eller forkert lydstyrketage. | Check 24VAC/DC power connection to A1/A2. Verify voltage. |
| "CH.1/CH.2" LED off, outputs open, but safety input is closed | Fault in safety input circuit (Y1-Y2) or internal fault. | Check wiring of E-stop/safety gate. Ensure contacts are clean and functioning. If problem persists, contact support. |
| Outputs do not close after safety input is restored | Feedback loop issue or internal fault. | Verify Y1-Y2 connection. Ensure no short circuits or open circuits. |
8. Tekniske specifikationer
| Parameter | Værdi |
|---|---|
| Model | PNOZ/X7/24VAC/DC |
| Varenummer | 774059 |
| Forsyning Voltage | 24 VAC/DC |
| Sikkerhedskontakter | 2 NO (Normalt åben) |
| Hjælpekontakter | Ingen |
| Ledningsføring | 1-kanal |
| Reset funktion | Automatisk |
| Bredde | 22.5 mm |
| Driftstilstand | Automatisk |
| Kontakt Nuværende vurdering | 2 Amps |
9. Garanti og support
For warranty information, technical support, or service inquiries, please contact PILZ directly or your authorized PILZ distributor. Keep your product model and part number (PNOZ/X7/24VAC/DC, 774059) available when contacting support.
PILZ Contact Information:
- Refer to the official PILZ webwebstedet for de mest opdaterede kontaktoplysninger for din region.
- Online resources and FAQs may also be available.





