VIOX FCT18-P Power On-Delay Timer Relay with Control Signal

Product Overview

The VIOX FCT18-P is a high-precision power on-delay timer relay designed for industrial automation applications where precise timing control is critical. This versatile timer relay features adjustable delay times ranging from 0.1 seconds to 100 days, making it suitable for a wide range of applications across various industries. With its falling edge triggering mechanism and control signal input, the FCT18-P provides reliable timing functions in even the most demanding environments.

Key Features and Benefits

• Flexible Timing Range: Extensive time setting options from 0.1 seconds to 100 days to suit virtually any application requirement
• Precise Timing Control: High accuracy with time error less than 0.5% and time deviation of only 0.1%
• Wide Power Supply Range: Compatible with 12 to 240 VAC/DC power sources for maximum installation flexibility
• Easy Configuration: Simple setup with clear wiring diagrams on the side of the product
• Robust Design: Strong anti-interference capability ensures reliable operation in noisy electrical environments
• Dual Control Options: Available with NPN or PNP control signal compatibility
• Visual Status Indication: Green LED for power supply status and red LED for relay activation
• DIN Rail Mounting: Standard DIN rail EN/IEC 60715 mounting for easy installation

Understanding On-Delay Timer Functionality

The FCT18-P implements an ON-delay timing function with falling edge triggering, which means the timing cycle begins when the input signal transitions from high to low (falling edge). The timing diagram illustrates how the relay operates:

• Un (Power): Represents the power supply to the timer relay
• S (Trigger Signal): The control input that initiates the timing sequence
• R (Relay Output): The relay output status during operation
• T1 & T2: Timing periods where T1 represents the initial timing delay and T2 represents the relay activation period

When power is applied to the timer relay, it remains in standby mode until a control signal is received. Once the control signal transitions from high to low, the timer begins counting (T1 period). After the preset delay time expires, the relay activates (T2 period) and remains active until the next control signal triggers a new timing cycle.

Comprehensive Time Setting Options

The FCT18-P offers an extensive range of time settings to accommodate various application requirements. The time setting dial allows for precise configuration within the following ranges:

The selection of the time range is made using the rotary dial on the front of the unit, while fine-tuning within each range is achieved using the ratio setting dial. The ratio setting allows adjustment from 10% to 100% of the selected time range, providing precise control over the timing function.

Ratio Setting

Flexible Wiring Options

The FCT18-P supports both NPN and PNP control signal configurations, allowing integration with various control systems and sensors:

NPN Configuration

In the NPN configuration, the control signal sinks current to ground. This setup is commonly used with NPN transistor outputs or open-collector outputs from PLCs and other control devices.

PNP Configuration

In the PNP configuration, the control signal sources current from the positive supply. This setup is typically used with PNP transistor outputs from sensors or PLC output modules.

Both configurations offer connection terminals for:

• OA1 (DC+ / AC L): Positive DC or AC Line connection
• S: Control signal input
• OA2 (DC- / AC N): Negative DC or AC Neutral connection

Dimension

Product Model Designation

The FCT18-P model designation follows a systematic coding structure that identifies the specific configuration:

FCT18-P X Y Z

• X (Position 1): Function
  • P: Pulse output
• Y (Position 2): Type of output
  • 1: 1CO contact
  • 2: 2CO contacts
• Z (Position 3): Supply voltage
  • A: AC230V
  • D: DC24V
  • W: AC/DC12-240V
• N (Position 4): Control signal
  • N: NPN
  • P: PNP

For example, FCT18-P1WN indicates a pulse output timer relay with 1CO contact, AC/DC12-240V supply voltage, and NPN control signal.

Technical Specifications

Applications of FCT18-P Power On-Delay Timer Relay

The versatility and precision of the FCT18-P make it suitable for numerous applications across various industries:

Manufacturing and Assembly Lines

• Sequential machine operations
• Conveyor belt control systems
• Part ejection timing in molding machines
• Automated tool changing sequences

Process Control

• Chemical dosing and mixing systems
• Batch processing control
• Temperature stabilization delays
• Filter backwash timing

HVAC Systems

• Fan startup delay sequences
• Compressor protection timing
• Damper actuation timing
• Cycling control for energy efficiency

Building Automation

• Lighting control sequences
• Security system timing functions
• Automatic door operation
• Escalator and elevator control timing

Packaging Equipment

• Sealing and cutting operations
• Product feed timing
• Label application sequences
• Box forming timing control

Installation and Setup Guide

The FCT18-P is designed for easy installation and configuration:

Mounting

1. Mount the timer relay on a standard 35mm DIN rail according to EN/IEC 60715.
2. Ensure adequate ventilation around the device, particularly in high-temperature environments.
3. Maintain a minimum spacing of 5mm between adjacent devices when multiple units are installed.

Wiring

1. Connect power supply to terminals A1 and A2, ensuring the voltage matches the device specifications.
2. For NPN control signal configuration, follow the NPN wiring diagram.
3. For PNP control signal configuration, follow the PNP wiring diagram.
4. Connect output terminals according to the application requirements (terminals 11, 12, 14 for single contact models, and additional terminals 21, 22, 24 for dual contact models).
5. Ensure all wire stripping lengths are approximately 7mm (0.28in) and tighten connections to 0.4N·m.

Configuration

1. Select the desired time range using the rotary time setting dial.
2. Adjust the ratio setting dial to fine-tune the delay time within the selected range.
3. Apply power to the timer and verify proper operation by checking the LED indicators:
   • Green LED indicates power supply status
   • Red LED indicates relay activation

Troubleshooting Common Issues

Advantages of VIOX FCT18-P Over Competing Products

The VIOX FCT18-P timer relay offers several advantages that set it apart from similar products in the market:

• Extended Time Range: With timing capabilities from 0.1 seconds to 100 days, the FCT18-P offers one of the widest timing ranges available in a single device, eliminating the need for multiple specialized timers.
• Superior Accuracy: With time deviation of just 0.1% and repeat accuracy of 0.5%, the FCT18-P provides more precise timing control than many competing products that typically offer 1-5% accuracy.
• Universal Power Supply: The wide 12-240 VAC/DC power supply range eliminates the need for separate models for different voltage requirements, simplifying inventory management and installation flexibility.
• Dual Control Signal Compatibility: Support for both NPN and PNP control signals enables integration with virtually any control system without additional interface components.
• Compact Design: At just 90mm×18mm×64mm, the FCT18-P requires minimal DIN rail space while providing robust functionality.
• Outstanding Temperature Performance: With an operating temperature range of -20°C to +60°C and storage temperature range of -40°C to +85°C, the FCT18-P excels in extreme environmental conditions.
• Enhanced Reliability: Built to industrial standards with a mechanical life of 10 million operations and electrical life of 100,000 operations, the FCT18-P offers exceptional longevity and dependability.

Conclusion

The VIOX FCT18-P Power On-Delay Timer Relay represents an optimal solution for applications requiring precise timing control with maximum flexibility. Its wide timing range, exceptional accuracy, and versatile configuration options make it suitable for virtually any industrial automation or control system application. With its robust design, reliable performance, and easy setup, the FCT18-P delivers outstanding value and dependable operation in demanding environments.

For more information about the FCT18-P or to discuss how this versatile timer relay can benefit your specific application, please contact our technical support team or visit our website at viox.com.