VIOX FCT18-AKR Pulse Delayed Timer Relay with Control Signal

Introduction

The VIOX FCT18-AKR is a high-precision pulse delayed timer relay designed for industrial automation systems that require accurate timing control. With its ON-delay (rising edge triggering) functionality, this timer relay provides reliable operation for a wide range of applications where precise timing is crucial. The FCT18-AKR stands out for its exceptional versatility, offering time ranges from as short as 0.1 seconds to as long as 100 days, making it suitable for both rapid-response processes and long-term time-dependent operations.

Key Features and Benefits

Versatile Timing Function

The FCT18-AKR operates as an ON-delay timer with rising edge triggering, where the operating time is precisely controlled by the S (signal) input. When the Un (power supply) is applied and the S signal is triggered, the relay R activates after the pre-set time T has elapsed. This timing function is ideal for applications requiring delayed activation of equipment or processes.

Wide Time Range Selection

One of the most impressive aspects of the FCT18-AKR is its extensive time range flexibility:

• 0.1-1s: For quick response applications
• 1-10s: Ideal for short process delays
• 0.1-1m: Perfect for minute-based timing needs
• 1-10m: Suitable for medium-duration processes
• 0.1-1hr: For hour-based operations
• 1-10hr: Extended hour timing
• 0.1-1day: Daily cycle operations
• 1-10day: Multi-day timing requirements
• 3-30day: Monthly operational cycles
• 10-100day: Extended long-term timing

This remarkable range eliminates the need for multiple timing relays in systems with varying timing requirements, simplifying inventory management and reducing costs.

Adjustable Ratio Setting

The FCT18-AKR features precise ratio adjustment from 10% to 100% (in 5% increments), allowing for fine-tuning of the timing period within each selected range. This level of precision ensures that the relay can be calibrated to meet exact timing requirements for any application.

Universal Power Supply Compatibility

With a wide power supply range from 12V to 240V AC/DC, the FCT18-AKR offers exceptional installation flexibility, making it compatible with virtually any industrial power system worldwide. This universal power capability reduces inventory needs and simplifies specification.

Reliable Performance

The FCT18-AKR is engineered for reliability with:

• Time error less than 0.5%
• Time deviation of only 0.1%
• Repeat accuracy of 0.5%
• Strong anti-interference capability for stable operation in electrically noisy environments

Easy Installation and Setup

Installation and configuration are straightforward with:

• Easy-to-set time and ratio using the intuitive dial controls
• DIN rail mounting (EN/IEC 60715 compatible)
• Clear wiring diagrams provided on the side of the product
• Compact dimensions: 90mm × 18mm × 64mm

Durable Design

Built for industrial environments, the FCT18-AKR offers:

• Operating temperature range from -20°C to +60°C (-40°F to +85°F)
• Temperature coefficient of 0.05%/°C at 20°C (0.05%/°F at 68°F)
• Mechanical life of 1×10⁷ operations
• Electrical life of 1×10⁵ operations
• IP20 protection rating
• Pollution level 2 rating

Technical Specifications

Model Identification

The FCT18-AKR product code is structured as follows:

FCT18-AkR X Y Z

Where:

1. Function: AkR – ON-delay timing function
2. Output Type:
   • 1: 1CO contact (1 SPDT)
   • 2: 2CO contacts (2 SPDT)
3. Supply Voltage:
   • A: AC 230V
   • D: DC 24V
   • W: AC/DC 12-240V
4. Control Signal:
   • N: NPN
   • P: PNP

Detailed Specifications

Parameter	FCT18-AkR1	FCT18-AkR2
Input Terminal	A1-A2	A1-A2
Voltage range	AC 230V / DC24V / AC/DC 12-240V	AC 230V / DC24V / AC/DC 12-240V
Power consumption	AC 3.5VA / DC 2.0W	AC 3.5VA / DC 2.0W
Voltage tolerance	-15% ~ +10%	-15% ~ +10%
Supply indication	Green LED	Green LED
Relay indication	Red LED	Red LED
Time ranges	0.1s-100days	0.1s-100days
Time setting	Button	Button
Time deviation	0.1%	0.1%
Repeat accuracy	0.5%	0.5%
Temperature coefficient	0.05%/°C, at 20°C (0.05%/°F, at 68°F)	0.05%/°C, at 20°C (0.05%/°F, at 68°F)
Output contact	1*SPDT	2*SPDT
Rated current	1*16A	2*16A
Mechanical life	1*10⁷	1*10⁷
Electrical life	1*10⁵	1*10⁵
Ambient temperature	-20 … +60°C / -40 … +85°C	-20 … +60°C / -40 … +85°C
Mounting	DIN rail EN/IEC 60715	DIN rail EN/IEC 60715
IP Rating	IP20	IP20
Stripping length	7mm (0.28in)	7mm (0.28in)
Installed altitude	≤2200m	≤2200m
Pollution level	2	2
Max cable size	AWG13-20 0.4N·m	AWG13-20 0.4N·m
Dimension	90mm*18mm*64mm	90mm*18mm*64mm
Weight	about 90g	about 90g
Standards	GB/T 14048.5, IEC60947-5-1, EN6812-1	GB/T 14048.5, IEC60947-5-1, EN6812-1

Wiring Configurations

The FCT18-AKR can be wired in both NPN and PNP configurations:

NPN Configuration

• Connect power supply to terminals Un
• Connect control signal S
• Output connections: OA1 (DC+ / AC L) and OA2 (DC- / AC N)
• Terminal connections: 11, 12, 14, 21, 22, 24

PNP Configuration

• Connect power supply to terminals Un
• Connect control signal S
• Output connections: OA1 (DC+ / AC L) and OA2 (DC- / AC N)
• Terminal connections: 11, 12, 14, 21, 22, 24

Dimension

Applications

The FCT18-AKR pulse delayed timer relay is ideal for a wide range of industrial and commercial applications:

Manufacturing Automation

• Conveyor systems with timed operations
• Sequential machine operations
• Production line timing control
• Assembly line process coordination

Building Management

• HVAC system timing controls
• Lighting control systems
• Security system entry/exit delays
• Pump and motor control timing

Energy Management

• Power sequencing for equipment startup
• Load shedding timing
• Generator startup sequencing
• Energy conservation timing cycles

Water Treatment

• Pump cycle timing
• Filtration system timing
• Chemical dosing delays
• Backwash cycle control

Agriculture

• Irrigation timing systems
• Livestock feeding equipment timing
• Greenhouse climate control timing
• Aquaculture system timing

General Industrial Applications

• Motor start timing
• Process sequencing
• Time-based safety interlocks
• Equipment warm-up delays

Installation and Setup Guide

Mounting Instructions

1. Mount the FCT18-AKR on a standard 35mm DIN rail according to EN/IEC 60715.
2. Ensure adequate ventilation around the unit.
3. For optimal performance, install in a location free from excessive vibration, dust, and corrosive gases.

Wiring Steps

1. Strip wires to 7mm (0.28in) length.
2. Connect power supply to the A1-A2 terminals.
3. Connect control signal to the S terminal.
4. Connect output devices to appropriate contact terminals.
5. Ensure all connections are tight and secure.

Time Setting Procedure

1. Select the appropriate time range using the main selector dial.
2. Fine-tune the time value using the ratio setting dial (10%-100%).
3. Apply power and verify correct operation by checking the LED indicators.

Troubleshooting Tips

Relay Not Activating

• Check power supply connections and voltage.
• Verify control signal is properly connected.
• Ensure time setting is appropriate for the application.
• Check for loose terminal connections.

Timing Inaccuracy

• Verify operating temperature is within specified range.
• Check for electromagnetic interference sources nearby.
• Ensure voltage stability within specified tolerance.
• Recalibrate time settings if necessary.

LED Indicators Not Working

• Check power supply connections.
• Verify voltage is within specified range.
• Contact support if indicators remain non-functional.

Maintenance and Care

The FCT18-AKR is designed for minimal maintenance. However, for optimal performance:

• Periodically check terminal connections for tightness.
• Keep the unit clean from dust and debris.
• Operate within specified environmental conditions.
• Record timing performance periodically to detect any drift.

Compliance and Certification

The FCT18-AKR timer relay is manufactured in compliance with:

• GB/T 14048.5
• IEC60947-5-1
• EN6812-1

These standards ensure reliable performance, electrical safety, and electromagnetic compatibility.

Warranty and Support

VIOX stands behind the FCT18-AKR with comprehensive warranty coverage and technical support. For detailed warranty information and technical assistance, please contact our customer service department or visit our website.

Conclusion

The VIOX FCT18-AKR pulse delayed timer relay represents the ideal solution for applications requiring precise timing control with versatile range options. Its wide operating voltage range, exceptional accuracy, and robust industrial design make it suitable for demanding environments across multiple industries. Whether your application requires millisecond precision or multi-day timing cycles, the FCT18-AKR delivers reliable performance to keep your systems running smoothly.

For more information about the VIOX FCT18-AKR or to discuss your specific application requirements, please contact our technical support team who can provide expert guidance on implementation and configuration.