Description

The DOLD UH 6937 frequency monitors actively monitor AC currents and the monitoring of the phase sequence response rotary direction of motors with three phase AC currents. The TFT (Thin Film Resistor) display the values can be set to individuals’ requirements. The frequency monitor is also suitable for monitoring the output frequency of inverters.

Specifications

Width      45 mm

Classification      Sensor less

Cat. / PL      4/e

SIL CL      3

Max supply voltage      24V DC

Channel      2

Connection      Pluggable screw terminals, Pluggable cage clamp terminals, Pluggable cage clamp terminals 2-wire

Indicator contacts      2 Semiconductor monitoring outputs

Measuring motor voltage max      690 V

Forcibly guided output contacts max      2 NO contacts

Housing protection std      IP 40 IEC/EN 60529

Terminals protection std      IP 20 IEC/EN 60529

Compliance

EN ISO 13849-1

EN 61508

EN IEC 62061

EN 61511

EN 61800-5- 2

IEC/EN 60947-5-1

IEC 60664-1

EN 55011

IEC/EN 60529

IEC/EN 60068-2-6

IEC/EN 60068-1

IEC/EN 60715

ITEM NUMBER PRODUCT PART NUMBER SUPPLY VOLTAGE (DC) CONTACTS
0066821 UH6937.02PS/001/61 24V 2 NO contacts

When it comes to ensuring the safety and efficiency of your industrial machinery, the UH 6937 Speed and Frequency Monitor from SAFEMASTER S Series is your ultimate solution. This advanced device offers unparalleled drive monitoring capabilities, designed to provide the utmost safety while optimizing your operations. Explore the advantages and technical features of the UH 6937, a cutting-edge speed and frequency monitor.

Advantages:

  1. Enhanced Safety: The UH 6937 is engineered to meet the highest safety standards, making it suitable for applications up to Cat. 4 / PL e or SIL 3. With safety as a top priority, it ensures that your machinery operates without compromising the well-being of your personnel or equipment.
  2. Efficient Drive Monitoring: Drive monitoring is made easy with the UH 6937. It offers sensorless monitoring of your machinery’s output frequency, allowing you to detect and respond to over- or under-frequency conditions promptly. This proactive approach minimizes the risk of accidents and equipment damage.
  3. User-Friendly Interface: Say goodbye to complex setup procedures. The UH 6937 features an intuitive front display with ergonomically shaped buttons and a backlit LCD screen. Adjust monitoring functions, delay times, and frequency ranges effortlessly, all without the need for a PC.
  4. Adaptive Functionality: Tailor the UH 6937 to your specific application with just a few button presses and appropriate wiring. This adaptability ensures that the monitor seamlessly integrates into your existing setup, enhancing its effectiveness.

Technical Features:

  1. Comprehensive Diagnostic Function: The UH 6937 goes beyond basic monitoring. It offers comprehensive diagnostic capabilities, providing you with valuable insights into your machinery’s performance and health.
  2. Wide Frequency and Voltage Range: This speed and frequency monitor can handle frequencies up to 1200 Hz and voltages up to AC 690 V, making it suitable for a broad range of industrial applications.
  3. Multiple Safety Functions: The UH 6937 supports essential safety functions, including Safe Operating Stop (SOS), Safely Limited Speed (SLS), Safe Torque Off (STO), and Safe Speed Range (SSR) in accordance with IEC 61800-5-2. These functions ensure that your machinery operates within safe parameters at all times.
  4. Quick Response Time: With cycle duration measurements of input frequency, the UH 6937 offers a rapid response to deviations from the desired frequency, minimizing potential risks.
  5. Adjustability: Fine-tune the monitor to your specific needs with adjustable parameters, including hysteresis, release delay, start-up bypass time, and alarm delay.
  6. Galvanic Separation: The device provides galvanic separation of measuring input, auxiliary voltage, and output contacts, further enhancing safety.
  7. Compact Design: With a slim 45 mm construction width, the UH 6937 is space-efficient and fits seamlessly into your control panel.

Incorporate the UH 6937 Speed and Frequency Monitor into your industrial setup, and experience the advantages of enhanced safety and efficient drive monitoring. Trust in its compliance with safety standards and its user-friendly interface to keep your operations running smoothly while prioritizing the safety of your personnel and machinery.

For a reliable and adaptable speed and frequency monitor that ensures peace of mind, choose the UH 6937 from SAFEMASTER S Series. Elevate your industrial safety standards today.

Application example