PILZ PNOZ XV2 30/24VDC Safety Relay Instruction Manual

1. Introduction

The PILZ PNOZ XV2 30/24VDC is a safety relay designed for monitoring safety functions in industrial applications. This device, model 774500, provides reliable safety circuit control with time monitoring capabilities. It features 2 normally open (n/o) contacts and is powered by a 24VDC supply. This manual provides essential information for the safe and correct installation, operation, and maintenance of the PNOZ XV2 safety relay.

2. Safety Instructions

Important: Read these safety instructions carefully before installing, operating, or performing maintenance on the PNOZ XV2 safety relay. Failure to follow these instructions may result in serious injury or death, and damage to equipment.

• Installation and commissioning must only be carried out by qualified personnel familiar with safety engineering and the relevant standards.
• Ensure that the power supply is disconnected before performing any wiring or maintenance work.
• The device must be used within its specified technical data (voltage, current, temperature, etc.).
• Do not bypass or disable safety functions.
• Regularly inspect the device for damage or signs of malfunction.
• Only use original spare parts and accessories.

3. Product Overview

The PILZ PNOZ XV2 30/24VDC is an electromechanical safety relay from the PNOZ X series, designed for time-monitoring applications. It features a compact design suitable for DIN rail mounting and screw-type connectors for secure wiring.

Figure 1: Front view of the PILZ PNOZ XV2 Safety Relay, showing product labels and specifications.

Key Features:

• Safety relay with time monitoring.
• 2 normally open (n/o) safety contacts.
• 24 VDC coil voltage.
• DIN rail mountable.
• Screw-type terminals for reliable connections.
• Automatic operation mode.

4. Setup and Installation

The PNOZ XV2 safety relay is designed for easy installation on a standard DIN rail. Ensure all power is disconnected before proceeding with installation.

4.1 Mounting

1. Locate a suitable position on a DIN rail within your control cabinet.
2. Align the relay with the DIN rail and press firmly until it clicks into place.
3. Ensure the relay is securely fastened and does not wobble.

4.2 Wiring

Refer to the terminal diagram on the device for correct wiring. Use appropriate wire gauges for the specified current ratings.

Figure 2: Top view of the PILZ PNOZ XV2 Safety Relay, showing terminal connections and the time setting dial.

• Connect the 24 VDC power supply to the designated terminals (e.g., A1 and A2).
• Connect the safety input devices (e.g., emergency stop buttons, safety gates) to the input terminals (e.g., S11, S12, S21, S22).
• Connect the load to the safety output contacts (e.g., 13-14, 23-24). These are normally open contacts that close when the safety circuit is clear.
• Ensure all screw terminals are tightened securely to prevent loose connections.

5. Operating Instructions

The PNOZ XV2 operates in automatic mode. Once correctly wired and powered, it monitors the safety inputs and controls the outputs based on the configured time settings.

5.1 Time Monitoring Adjustment

The device features a rotary dial for adjusting the time delay. This dial is visible on the top surface of the relay (refer to Figure 2).

1. Use a small screwdriver to carefully turn the dial to the desired time setting (e.g., 0.5s, 1s, 2s, up to 30s).
2. The selected time setting determines the delay for the safety outputs.
3. Verify the setting is correct for your application's safety requirements.

5.2 Power-Up and Operation

• After completing wiring, apply 24 VDC power to the relay.
• The "POWER" indicator LED should illuminate.
• If the safety inputs are closed (e.g., all safety gates closed, E-stop released), the "START" LED will illuminate, and after the set time delay, the output contacts will close.
• If a safety input opens, the output contacts will immediately open, and the "START" LED will extinguish.

6. Maintenance

The PNOZ XV2 safety relay is designed for minimal maintenance. However, regular checks are recommended to ensure continued safe operation.

• Visual Inspection: Periodically inspect the relay for any signs of physical damage, discoloration, or loose connections.
• Function Test: Regularly test the safety function by activating the connected safety devices (e.g., pressing an E-stop, opening a safety gate) to ensure the relay responds correctly and opens the safety outputs.
• Cleaning: If necessary, clean the exterior of the device with a dry, lint-free cloth. Do not use abrasive cleaners or solvents.

7. Troubleshooting

This section provides solutions to common issues encountered with the PNOZ XV2 safety relay.

8. Specifications

Technical data for the PILZ PNOZ XV2 30/24VDC safety relay, model 774500.

• Model: 774500
• Brand: PILZ
• Product Type: Safety Relay with Time Monitoring
• Coil Voltage: 24 Volts DC
• Wattage: 4.5 watts
• Output Contacts: 2 Normally Open (n/o)
• Current Rating: 8 Amps (overall)
• Contact Current Rating: 5 Amps
• Maximum Switching Current: 5 Amps
• Maximum Switching Voltage: 24 Volts
• Minimum Switching Voltage: 24 Volts (DC)
• Connector Type: Screw Terminals
• Mounting Type: DIN Rail Mount
• Operation Mode: Automatic
• Item Weight: Approximately 12.48 ounces (0.78 lbs)
• Product Dimensions: Approximately 5.00 x 4.00 x 2.00 inches
• Included Components: 1 Unit

9. Warranty and Support

For warranty information or technical support regarding your PILZ PNOZ XV2 safety relay, please refer to the official PILZ website or contact your local PILZ distributor. Ensure you have the model number (774500) and any relevant purchase details available when seeking support.

This manual is for informational purposes only. PILZ reserves the right to make changes to product specifications without prior notice.