VIOX FCT18-A/At Power On-Delay timer Relay with Retrigger Control Signal

Precision Timing Control for Industrial Applications

The VIOX FCT18-A/At is an advanced power on-delay timer relay designed to provide reliable, precise timing control for a wide range of industrial applications. Featuring exceptional accuracy, versatile configuration options, and robust construction, this timer relay is the ideal solution for automated systems requiring dependable time-delayed switching operations.

Product Overview

The FCT18-A/At power on-delay timer relay is engineered to deliver consistent performance in demanding industrial environments. With time ranges spanning from 0.1 seconds to 100 days and a time error of less than 0.5%, this relay provides the precision timing control required for critical industrial processes. The relay’s retrigger control signal functionality offers enhanced flexibility for complex timing sequences, making it suitable for a diverse range of applications.

Key Features and Benefits

• Extensive Time Range: Offering timing control from 0.1 seconds to 100 days, providing flexibility for various application requirements
• High Accuracy: Time error less than 0.5% ensures precise operation for critical timing applications
• Versatile Power Supply: Wide power supply range from 12 to 240 VAC/DC, compatible with most industrial power systems
• User-Friendly Setup: Easy configuration with wiring diagrams printed on the side of the product
• Strong Anti-Interference Capability: Reliable operation even in environments with electrical noise and interference
• Visual Status Indication: Green LED for supply indication and red LED for relay status, allowing for quick visual verification
• DIN Rail Mounting: Standard DIN rail mount (EN/IEC 60715) for easy installation in control panels
• Compact Design: Space-saving dimensions of 90mm*18mm*64mm, ideal for high-density control panels

Technical Specifications

Timing Functions

The FCT18-A/At timer relay offers two primary timing functions designed to meet diverse application requirements:

ON-Delay (A Function)

When power (Un) is applied, the timing cycle (T) begins. After the preset time has elapsed, the output relay (R) changes state. This function is ideal for applications requiring a delay before equipment activation.

ON-Delay + Instantaneous (At Function)

This enhanced function combines the standard ON-delay operation with an instantaneous output. When power (Un) is applied, one output contact (11-14/R1) changes state immediately, while the other output contact (21-24/R2) changes state after the preset time (T) has elapsed. This dual-output functionality is perfect for applications requiring both immediate and delayed responses.

Time and Ratio Setting Options

The FCT18-A/At timer relay provides extensive configuration options to accommodate a wide variety of timing requirements:

Time Range Settings

• 0.1-1s: For rapid cycle applications requiring precise short-duration timing
• 1-10s: Ideal for standard short-cycle industrial processes
• 0.1-1m: Perfect for minute-based process control
• 1-10m: Suitable for longer process cycles
• 0.1-1hr: For hourly cycle applications
• 1-10hr: Extended hour-based timing control
• 0.1-1day: Daily cycle control for extended processes
• 1-10day: Multi-day timing for long-duration processes
• 3-30day: Monthly cycle applications
• 10-100day: Extended duration timing for seasonal applications

Ratio Settings

Fine-tune your timing operations with 20 ratio settings ranging from 10% to 100% in 5% increments, allowing for precise adjustment within each time range.

Wiring Options

The FCT18-A/At supports both NPN and PNP control signal configurations:

NPN Configuration

Connects with negative logic control signals, where the control signal pulls to ground. Suitable for integration with NPN transistor outputs or sinking PLC outputs.

PNP Configuration

Works with positive logic control signals, where the control signal provides a positive voltage. Compatible with PNP transistor outputs or sourcing PLC outputs.

Dimension

Applications

Timer relays like the FCT18-A/At provide simple, reliable, and economical control solutions for various industrial applications. They deliver time-delayed switching capabilities essential for starting motors, controlling loads, or managing processes.

Industrial Uses

Lighting Control

Enable delayed switching of multiple rows of lamps in production facilities or greenhouses. The precise timing control allows for energy-efficient illumination scheduling and extends lamp life through controlled switching.

Star-Delta Motor Starting

Reduce starting current with changeover delay to prevent interphase short-circuits. The reliable timing ensures proper motor startup sequence, protecting expensive equipment from current surges.

Cyclic Switching of Machinery

Implement weekly startup of fans to prevent sticking or flush pipes to keep them clear. The programmable timing cycles maintain equipment in optimal operating condition through regular automated movement.

Additional Applications

• Control Panels: Integrate timing functions into centralized control systems
• Pump Controls: Manage pump cycling for water management and process applications
• Machine Tools: Control sequential operations in manufacturing equipment
• Automatic Doors: Regulate opening and closing cycles for security and efficiency
• Car Park Barriers: Manage vehicle access with timed barrier operations
• Assembly Machines: Coordinate production line timing for optimal throughput
• Compressor Controls: Regulate compression cycles to maintain system pressure
• Transportation: Time-based control of transportation system components
• Industrial Refrigeration: Manage defrost cycles and cooling operations
• Packaging Machines: Synchronize packaging operations for consistent product output
• Baking Ovens: Control heating cycles for consistent product quality
• Water and Wastewater: Manage treatment process timing and pump operations
• Wind Power: Control timing for safety and operational systems
• Industrial Cleaning Processes: Schedule cleaning cycles for optimal performance

Monitoring and Protection Features

The FCT18-A/At timer relay is part of a comprehensive range of industrial relays designed to monitor and detect operating conditions. When integrated with monitoring relays, the FCT18-A/At can be part of a complete system that provides:

Three-Phase Voltage Monitoring

• Voltage monitoring of mobile three-phase equipment
• Protection of personnel and installations against phase reversal
• Monitoring of the supply voltage of machines and installations
• Protection of equipment against damage caused by unstable supply voltage
• Switching to emergency or auxiliary supply

Single-Phase Current Monitoring

• Monitoring of motor current consumption
• Monitoring of lighting installations and heating circuits
• Monitoring of transportation equipment overload
• Monitoring of locking devices, electromechanical brake gear, and locked rotors

Single-Phase Voltage Monitoring

• Speed monitoring of DC motors
• Monitoring of battery voltages and other supply networks

Liquid Level Monitoring

• Protection of pumps against dry running
• Protection against container overflow
• Control of liquid levels
• Detection of leaks
• Control of mixing ratios

Installation Guidelines

For optimal performance and reliability of your FCT18-A/At timer relay, follow these installation guidelines:

1. DIN Rail Mounting: Secure the relay to a standard 35mm DIN rail in accordance with EN/IEC 60715.
2. Environmental Considerations: Install in environments within the specified temperature range (-20°C to +60°C operational, -40°C to +85°C storage).
3. Wiring: Use appropriate wire size (AWG13-20) and ensure proper stripping length (7mm) for secure connections.
4. Control Signal Configuration: Configure for either NPN or PNP operation according to your control system requirements.
5. Time and Ratio Setting: Set the desired time range and ratio using the front panel controls before system startup.
6. Clearance: Allow adequate space around the relay for ventilation and heat dissipation.
7. Protection: Install in a control panel or enclosure providing at least IP20 protection.

Why Choose VIOX FCT18-A/At Timer Relay?

The VIOX FCT18-A/At power on-delay timer relay stands out as the ideal choice for industrial timing applications due to its exceptional combination of features:

• Precision and Reliability: With a time error less than 0.5% and a repeat accuracy of 0.5%, the FCT18-A/At delivers consistent, dependable performance for critical timing applications.
• Versatility: The extensive time range from 0.1 seconds to 100 days, combined with 20 ratio settings, provides unmatched flexibility to meet diverse application requirements.
• Ease of Use: Simple configuration with wiring diagrams on the product and clear LED status indicators ensures straightforward setup and operation.
• Durability: With a mechanical life of 10 million operations and an electrical life of 100,000 operations, the FCT18-A/At offers exceptional longevity and value.
• Standards Compliance: Manufactured in accordance with GB/T 14048.5, IEC60947-5-1, and EN61812-1 standards, ensuring quality and compatibility.
• Compact Design: The space-saving dimensions (90mm*18mm*64mm) make it ideal for installation in crowded control panels.

Conclusion

The VIOX FCT18-A/At power on-delay timer relay represents the perfect balance of precision, versatility, and reliability for industrial timing applications. From simple motor starting sequences to complex process control timing, this compact yet powerful relay delivers consistent performance in demanding environments. With its extensive configuration options, robust construction, and standards-compliant design, the FCT18-A/At is the ideal timing control solution for modern industrial automation systems.

For more information about the VIOX FCT18-A/At power on-delay timer relay or to discuss your specific application requirements, please contact our technical support team. We’re committed to helping you find the perfect timing solution for your industrial control needs.