Pilz PNOZsigma Configurable Safety Relay 751104 User Manual

1. Introducció

This manual provides essential information for the safe and efficient installation, operation, and maintenance of the Pilz PNOZsigma Configurable Safety Relay, model 751104. Please read this manual thoroughly before attempting to install or operate the device.

2. Informació de seguretat

Safety relays are critical components in safety-related control systems. Incorrect installation or operation can lead to serious injury or death. Observe all local and international safety regulations, standards, and directives.

• Personal qualificat: Installation, commissioning, and maintenance must only be performed by qualified and authorized personnel.
• Desconnexió d'alimentació: Always disconnect power before performing any installation, wiring, or maintenance tasks.
• Cablejat: Ensure all wiring is correct and securely connected according to the wiring diagrams and local electrical codes.
• Prova: Thoroughly test the safety function after installation and any modifications.
• Original Condition: Do not modify the device. Use only genuine Pilz accessories and spare parts.

3. Producte acabatview

The Pilz PNOZsigma 751104 is a configurable safety relay designed for monitoring safety functions in industrial applications. It is a standalone unit featuring a compact design with plug-in spring-loaded terminals for easy installation.

Característiques principals:

• Entrades: Supports 1-channel or 2-channel wiring with or without detection of shorts across contacts.
• Opcions d'inici: Configurable for manual or automatic start.
• Sortides: Features 3 Normally Open (N/O) safety outputs, 1 Normally Closed (N/C) auxiliary output, and 1 Safety Contact (SC) output.
• Font d'alimentació: Operates on 24 V DC.
• Seguiment: Capable of monitoring E-STOP pushbuttons, safety gates, and light curtains.
• Disseny compacte: With a width of 22.5 mm, it saves space in control cabinets.

Figure 1: Pilz PNOZsigma 751104 Safety Relay. Aquesta imatge mostra la part frontal view of the Pilz PNOZsigma 751104 safety relay. Visible are the top and bottom plug-in spring-loaded terminals. The front panel is yellow and features the 'PILZ PNOZ s4' branding. Indicator LEDs for 'Power', 'In1', 'In2', 'Out', 'Start', and 'Fault' are present. Terminal markings include A1, 13, 23, 33, S12, S22, S34, 41 at the top, and S11, S21, Y32, 42, A2, 14, 24, 34 at the bottom.

4. Configuració

4.1. Instal·lació

The PNOZsigma 751104 is designed for plug-in mounting. It should be installed in a control cabinet or enclosure that provides adequate protection against environmental factors and unauthorized access. Ensure sufficient ventilation to prevent overheating.

• Mount the device on a DIN rail.
• Ensure proper clearance around the device for air circulation and ease of wiring.

4.2. Cablatge

All wiring must comply with the provided wiring diagrams and relevant electrical standards. Refer to Figure 1 for terminal identification.

1. Font d'alimentació: Connect the 24 V DC power supply to terminals A1 (+) and A2 (-).
2. Entrades: Connect safety input devices (e.g., E-STOP, safety gate switches) to the S11, S12, S21, S22, S34 terminals as per your safety circuit design. The device supports 1-channel or 2-channel wiring.
3. Sortides: Connect the safety outputs (13-14, 23-24, 33-34) to the control circuit of contactors or other safety-related components. The auxiliary output (41-42) can be used for signaling. The SC output (Y32) is also available.
4. Start Circuit: Depending on the configuration (manual or automatic start), connect the start button or bridge the start circuit accordingly.

After wiring, double-check all connections for correctness and tightness to prevent loose contacts or short circuits.

5. Instruccions de funcionament

Once installed and wired correctly, the PNOZsigma 751104 monitors the connected safety devices. The operational status is indicated by the LEDs on the front panel.

• LED d'alimentació: Illuminates when the device is supplied with power.
• In1/In2 LEDs: Indicate the status of the safety inputs.
• LED de sortida: Illuminates when the safety outputs are closed (enabled).
• Start LED: Indicates the status of the start circuit.
• LED d'error: Illuminates in case of an internal fault or a fault in the safety circuit.

Inici del sistema:

After power-up and with all safety inputs closed, the device will be ready to enable the safety outputs. Depending on the configuration:

• Inici automàtic: The safety outputs will close automatically if all safety inputs are closed.
• Inici manual: Acknowledge the start condition by pressing the connected start button.

6. Manteniment

The Pilz PNOZsigma 751104 is designed for minimal maintenance. However, regular inspections are recommended to ensure continued safe operation.

• Inspecció visual: Periodically check the device for any signs of damage, discoloration, or loose connections.
• Prova de funció: Regularly test the complete safety function, including the connected safety devices and the PNOZsigma relay, according to your risk assessment and local regulations.
• Neteja: If necessary, clean the device with a dry, lint-free cloth. Do not use abrasive cleaners or solvents.

7. Solució De Problemes

If the system does not operate as expected, refer to the following troubleshooting guide. The Fault LED provides a primary indication of issues.

For complex issues or persistent faults, contact Pilz technical support.

8. Especificacions

9. Garantia i Suport

For detailed warranty information, please refer to the official Pilz website or contact your authorized Pilz distributor. Warranty terms typically cover defects in materials and workmanship under normal use.

For technical support, product inquiries, or to report issues, please visit the official Pilz weblloc web o poseu-vos en contacte amb el seu departament d'atenció al client. També podeu visitar el PILZ Store on Amazon per a més informació.