PILZ 312070 Safety relays

PILZ 312070 Overview

The PILZ 312070 is a safety relay from the PNOZ s5 series. It is a compact and cost-effective safety relay used for monitoring safety functions such as emergency stop buttons, safety gates, and light curtains.

Product Detailed Description

• Function:

• Monitors safety functions such as emergency stop buttons, safety gate switches, and light curtains.

• Reliably interrupts the safety circuit in the event of a detected hazard, thereby stopping the dangerous movement of the machine.

• Features automatic or manual reset function (configurable via wiring).

• Provides safety-related output contacts (typically normally open contacts for controlling the safety circuit).

• Has indicator LEDs for displaying power status, input channel status, and output channel status.

• Features:

• Compact width, saving control cabinet space.

• Simple wiring and easy installation.

• High reliability and long service life.

• Complies with important safety standards (e.g., EN ISO 13849-1).

• Can be used for single-channel and dual-channel wiring.

Product Parameters

• Type: PNOZ s5 24VDC 2 n/o 1 n/c

• Order No.: 312070

• Supply Voltage: 24 V DC

• Power Consumption: Typ. 1.5 W

• Input Circuits:

• 1 or 2 channel wiring

• Suitable for normally closed contact safety sensors

• Safety Contacts:

• 2 normally open (NO) safety contacts

• Forcibly guided contacts in accordance with EN 60947-5-1

• Auxiliary Contacts:

• 1 normally closed (NC) auxiliary contact

• Rated Current/Voltage (Safety Contacts):

• 6 A / 24 V DC (inductive load L/R = 50 ms)

• 8 A / 24 V DC (resistive load)

• 8 A / 230 V AC (resistive load)

• Rated Current/Voltage (Auxiliary Contact):

• 4 A / 24 V DC (inductive load L/R = 50 ms)

• 4 A / 24 V DC (resistive load)

• 4 A / 230 V AC (resistive load)

• Connection Type: Screw terminals

• Conductor Cross-section:

• Rigid: 0.2 - 2.5 mm²

• Flexible: 0.2 - 2.5 mm² (with or without wire end ferrule)

• Protection Degree: IP20 (housing), IP40 (terminal area)

• Mounting Type: DIN rail mounting

• Ambient Temperature: -25 °C to +55 °C

• Standards Compliance:

• EN ISO 13849-1 (up to PL e, Cat. 4)

• IEC 61508 (SIL CL 3)

• EN 60204-1

• UL 508

• CSA C22.2 No. 14

• Dimensions (W x H x D): 22.5 mm x 94 mm x 121 mm

• Weight: Approx. 120 g

Product Advantages

• High Safety:

• Complies with the highest safety standards, ensuring the safety of personnel and machinery.

• Forcibly guided contact design provides reliable fail-safe performance.

• Cost-Effective:

• Compact design and simple wiring reduce costs.

• Easy to Use:

• Clear wiring diagrams and indicator LEDs simplify installation and troubleshooting.

• Flexibility:

• Can be used with single-channel and dual-channel safety sensors.

• Configurable for automatic or manual reset.

• Space-Saving:

• Narrow width design saves control cabinet space.

Precautions

• Correct Selection:

• Choose the appropriate safety relay based on specific safety requirements and sensor types.

• Correct Wiring:

• Strictly follow the PILZ wiring diagrams to ensure correct connection of the safety circuit.

• Safety Standards:

• Ensure that the design of the safety circuit complies with relevant safety standards and regulations.

• Reset Mode:

• Configure the reset mode (automatic or manual) correctly according to the application requirements.

• Regular Testing:

• Test the function of the safety relay regularly in accordance with the requirements of relevant safety standards.

• Environmental Conditions:

• Ensure that the operating environment temperature is within the permissible range and avoid humid and corrosive environments.

Product Applications

• Emergency Stop Circuits:

• Monitoring emergency stop buttons to safely stop machines in emergency situations.

• Safety Gate Monitoring:

• Monitoring the position of safety gates, allowing machine operation only when the safety gate is closed.

• Light Curtains and Light Grids:

• Used as safety interlocks to stop machines when personnel enter hazardous areas.

• Two-Hand Control:

• For machines requiring simultaneous operation with both hands to ensure operator safety.

• General Safety Circuits:

• For various industrial automation applications requiring safety monitoring.

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