VIOX FCT18-AR Pulse Delayed Timer Relay with Control Signal

Product Overview

The VIOX FCT18-AR is a high-precision pulse delayed timer relay designed for industrial automation systems requiring accurate timing control. This versatile relay features exceptional timing accuracy, wide operating voltage range, and robust anti-interference capabilities, making it ideal for applications where reliable timing functions are critical to system performance.

The FCT18-AR employs rising edge triggering technology with ON-delay functionality, providing precise control over equipment operation timing. With adjustable time ranges from 0.1 seconds to 100 days and a wide power supply compatibility from 12V to 240V AC/DC, this timer relay offers flexibility for virtually any industrial control requirement.

Key Features and Benefits

• Exceptional Timing Precision: With time error less than 0.5% and repeat accuracy of 0.5%, the FCT18-AR delivers consistent and reliable timing performance.
• Extensive Time Range: Configurable from 0.1 seconds to 100 days, covering applications from quick-response automation to long-term process control.
• Versatile Power Supply: Compatible with power sources from 12V to 240V AC/DC, eliminating the need for multiple relay models across different voltage systems.
• Strong EMI Resistance: Built-in anti-interference capability ensures stable operation even in electrically noisy industrial environments.
• Simple Configuration: Easy setup with clear wiring diagrams provided directly on the product casing for quick installation.
• Visual Status Indication: Green LED for power supply status and red LED for relay operation status provide instant visual feedback.
• Robust Construction: DIN rail mountable design with IP20 protection rating for industrial environments.

Technical Specifications

Understanding the Model Designation

The FCT18-AR timer relay follows a specific model coding system to identify different configurations:

    FCT18-AR X Y Z
           │  │ │ │
           1  2 3 4

1. Function: AR = ON-delay (Rising edge triggering)
2. Type of Output: 1 = 1CO contact, 2 = 2CO contacts
3. Supply Voltage: A = AC230V, D = DC24V, W = AC/DC12-240V
4. Control Signal: N = NPN, P = PNP

Timing Function Details

The FCT18-AR features ON-delay timing with rising edge triggering. In this mode, when power (Un) is applied, and the control signal (S) is triggered, the relay output (R) activates after the preset delay time (T). This function repeats as control signals are applied, making it ideal for sequential operations.

Time Range Settings

The FCT18-AR offers 10 selectable time ranges for precise control:

• 0.1-1s: For quick response applications
• 1-10s: For short cycle automation
• 0.1-1m: For minute-based process control
• 1-10m: For extended process operations
• 0.1-1hr: For hourly cycling operations
• 1-10hr: For long-duration processes
• 0.1-1day: For daily operations
• 1-10day: For extended multi-day processes
• 3-30day: For monthly maintenance cycles
• 10-100day: For long-term scheduling

Ratio Setting

Fine-tune the timing within each range using the ratio setting dial. Available ratios range from 10% to 100% in 5% increments, allowing for precise time adjustments within the selected time range.

Installation and Wiring

The FCT18-AR features clear wiring diagrams for both NPN and PNP control signal configurations. The unit mounts easily on standard 35mm DIN rails according to EN/IEC 60715 specifications, with dimensions of 90mm height, 18mm width, and 64mm depth.

Wiring Configuration

The timer relay provides multiple connection options:

• Power Supply: Connect to terminals A1-A2
• Control Signal (S): Accepts either NPN or PNP signals based on model
• Output Contacts: Available at terminals 11-14/12 for single contact models or terminals 11-14/12 and 21-24/22 for dual contact models

Dimension

Applications

The FCT18-AR pulse delayed timer relay excels in numerous industrial applications:

• Manufacturing Automation: Control conveyor systems, assembly line timing, and machine cycling
• Process Control: Manage sequential operations in chemical processing, food production, and pharmaceutical manufacturing
• HVAC Systems: Control ventilation cycling, temperature regulation timing, and equipment protection delays
• Water Treatment: Time pumping cycles, filtration processes, and chemical dosing operations
• Building Management: Coordinate lighting controls, security systems, and facility equipment cycling
• Agricultural Systems: Schedule irrigation cycles, feeding systems, and environmental controls

Advantages Over Standard Timer Relays

The FCT18-AR offers several advantages compared to standard timer relays:

• External Control Signal: Unlike basic timer relays, the FCT18-AR can be triggered by an external control signal, allowing for integration with sensors, PLCs, and other control systems.
• Wider Time Range: With adjustability from 0.1 seconds to 100 days, it offers greater versatility than typical timer relays.
• Higher Precision: Time error less than 0.5% ensures more accurate timing than standard relays.
• Dual Power Options: Compatible with both AC and DC power supplies across a wide voltage range.
• Enhanced EMI Protection: Strong anti-interference capability ensures reliable operation in noisy industrial environments.
• Visual Status Indicators: Dual LED indicators provide clear status monitoring for both power and relay activation.

Maintenance and Troubleshooting

The FCT18-AR is designed for minimal maintenance requirements, but proper care ensures optimal performance:

• Periodically check terminal connections for tightness
• Keep the relay free from excessive dust and moisture
• Verify LED indicators are functioning properly
• If timing issues occur, check the power supply voltage is within specified tolerance (-15% ~ +10%)
• When replacing, note exact model configuration to ensure compatibility

Why Choose the VIOX FCT18-AR Timer Relay?

The FCT18-AR represents VIOX’s commitment to quality and reliability in industrial control components. With its high precision timing, versatile configuration options, and robust construction, this pulse delayed timer relay delivers consistent performance across diverse applications.

Key advantages include:

• Industry-leading timing accuracy of 0.5%
• Exceptional versatility with 10 time ranges and multiple ratio settings
• Universal power supply compatibility (12-240V AC/DC)
• Compact DIN rail mounting design
• Clear visual indicators for operation status
• Compliance with international standards

Conclusion

The VIOX FCT18-AR pulse delayed timer relay combines precision timing control with versatile configuration options, making it an ideal component for industrial automation systems requiring reliable timing functions. With its wide operating voltage range, extensive time settings, and robust construction, this timer relay provides consistent performance across diverse applications.

For more information about the FCT18-AR pulse delayed timer relay or to discuss your specific application requirements, contact our technical support team or visit our website.

Note: The above information is subject to change without further notice. Please consult the latest product documentation for the most current specifications.