VIOX FCT18-M Multifunction Timer Relay

Overview

The VIOX FCT18-M is a premium industrial-grade multifunction time relay designed for precision timing control across a wide range of electrical applications. With its comprehensive feature set, robust construction, and exceptional reliability, this versatile timing relay offers the perfect solution for complex timing sequences, process automation, and equipment protection in diverse industrial environments.

Whether you’re managing machine cycles, implementing safety delays, or designing sophisticated control systems, the FCT18-M provides the flexibility and precision required for mission-critical timing applications.

Key Features and Benefits

• Versatile Functionality: Offering 10 distinct timing functions, including 5 power-controlled delay modes, 4 external signal-controlled delay modes, and an ON-OFF switching mode, the FCT18-M adapts effortlessly to nearly any timing requirement.
• Exceptional Timing Range: With an impressive timing span from 0.1 seconds to 100 days, this relay can handle both rapid-response operations and extended-duration processes with equal precision.
• Wide Power Supply Compatibility: Supporting power inputs from 12V to 240V AC/DC, the FCT18-M integrates seamlessly into existing systems without requiring additional power conversion equipment.
• Superior Timing Accuracy: Maintaining a time error of less than 0.5% and time deviation of just 0.1%, this relay delivers the precision necessary for synchronized industrial processes.
• Robust Environmental Protection: Designed to withstand temperatures from -20°C to +60°C (-40°F to +85°F) and rated IP20, the FCT18-M performs reliably even in challenging industrial conditions.
• User-Friendly Setup: Clear wiring diagrams on the side of the product simplify installation, while intuitive dial controls make precise timing adjustments straightforward.
• Enhanced Noise Immunity: With strong anti-interference capability, this relay maintains consistent operation even in electrically noisy environments.
• Compact DIN Rail Design: At just 90mm×18mm×64mm and approximately 90g, the FCT18-M maximizes functionality while minimizing panel space requirements.

Comprehensive Function Modes

The FCT18-M offers 10 distinct operating functions to address virtually any timing control scenario:

Power-Controlled Delay Modes

• Function A: ON-delay – Output activates after a preset delay once power is applied
• Function B: OFF-delay – Output deactivates after a preset delay once power is removed
• Function C: Repeat cycle (Starting OFF) – Cyclical operation beginning in OFF state when power is applied
• Function D: Repeat cycle (Starting ON) – Cyclical operation beginning in ON state when power is applied
• Function J: Pulse output (Rising edge triggering) – Generates precisely timed output pulses

External Signal-Controlled Delay Modes

• Function E: OFF-delay (Falling edge triggering) – Output deactivates after preset delay following trigger signal fall
• Function F: OFF-delay (Rising edge triggering) – Output deactivates after preset delay following trigger signal rise
• Function G: OFF-delay (Falling edge triggering) – Alternative configuration with different timing characteristics
• Function H: ON-delay (Falling edge) & OFF delay (Rising edge) – Combined operation mode for complex sequences
• Function I: ON-OFF switching (Rising edge triggering) – Toggles output state based on trigger signal

Precision Timing Control

The FCT18-M features intuitive dial controls that allow precise setting of timing parameters:

Time Range Selection

Ten selectable time ranges provide granular control from fractions of a second to months:

• 0.1-1s: For rapid response applications
• 1-10s: Common for standard process delays
• 0.1-1m: Short interval timing (6-60 seconds)
• 1-10m: Medium duration processes (1-10 minutes)
• 0.1-1hr: Extended operations (6-60 minutes)
• 1-10hr: Long-duration processes (1-10 hours)
• 0.1-1day: Daily cycle operations (2.4-24 hours)
• 1-10day: Multi-day processes (1-10 days)
• 3-30day: Monthly cycle operations
• 10-100day: Extended duration monitoring

Ratio Setting

For cyclical operations, the duty cycle ratio can be precisely adjusted from 10% to 100% in 5% increments, allowing fine-tuning of ON/OFF periods for optimal process control.

Technical Specifications

Input Terminal		A1-A2
Voltage range		AC 230V / DC24V / AC/DC 12-240V
Power consumption		AC 3.5VA/ DC 2.0W
Voltage tolerance		-15%~+10%
Supply indication		Green LED
Relay indication		Red LED
Time ranges		0.1s-100days
Time setting		Button
Time deviation		0.1%
Repeat accuracy		0.5%
Temperature coefficient		0.05%/°C, at=20°C (0.05%/°F, =68°F)
Output contact	FCT18-M1	1*SPDT
	FCT18-M2	2*SPDT
Rated current	FCT18-M1	1*16A
	FCT18-M2	2*16A
Mechanical life		1*107
Electrical life		1*105
Ambient Temperature		-20 … +60°C /-40 … +85°C
Mounting		DIN rail EN/IEC 60715
IP Rating		IP20
Stripping length		7mm (0.28in)
Installed altitude		≤2200m
Pollution level		2
Max cable size		AWG13-20 0.4N·m
Dimension		90mm*18mm*64mm
Weight		about 90g
Standards		GB/T 14048.5, IEC60947-5-1, EN68612-1

Model Selection Guide

The FCT18-M series offers flexible configuration options to match your specific requirements:

FCT18-M □ □ □ □

1 2 3 4

1: Function	2: Type of output	3: Supply voltage	4: Control signal
M – Multifunction	1 – 1CO contact	A – AC 24V	N – NPN
	2 – 2CO contacts	D – DC24V	P – PNP
		W – AC/DC12-240V

Wiring Diagrams

The FCT18-M supports both NPN and PNP control signal configurations:

NPN Connection

For sinking inputs with NPN transistor or open collector outputs:

• A1 (+DC / +AC)
• A2 (-DC / -AC N)
• S – Signal input terminal
• Output terminals: 15, 16, 18 (FCT18-M1) or 15, 16, 18, 25, 26, 28 (FCT18-M2)

PNP Connection

For sourcing inputs with PNP transistor outputs:

• A1 (+DC / +AC)
• A2 (-DC / -AC N)
• S – Signal input terminal
• Output terminals: 15, 16, 18 (FCT18-M1) or 15, 16, 18, 25, 26, 28 (FCT18-M2)

Dimension

Applications

The versatility of the FCT18-M multifunction time relay makes it ideal for numerous industrial and commercial applications:

Manufacturing and Process Control

• Machine Sequencing: Coordinate precise timing of multiple process steps
• Conveyor Control: Manage item spacing and processing intervals
• Batch Processing: Time critical mixing, heating, or cooling cycles
• Cyclical Operations: Maintain regular process intervals with repeatable accuracy

Building Automation

• HVAC Systems: Control fan cycling, defrost timing, and temperature regulation
• Lighting Control: Manage light sequencing, energy-saving cycles, and special effects
• Access Systems: Time door locks, gates, and security systems

Safety and Protection

• Motor Protection: Implement safe restart delays after power outages
• Emergency Systems: Sequence backup generator operations
• Alarm Systems: Control alert sequences and verification delays

Utilities and Infrastructure

• Pump Control: Manage cycling, prevent dry-running, and implement staggered starts
• Water Treatment: Time filtration cycles, chemical dosing, and backwash sequences
• Energy Management: Schedule load shedding and peak demand reduction

Installation and Setup Guide

Mounting

The FCT18-M is designed for standard 35mm DIN rail mounting (EN/IEC 60715), making installation straightforward in control panels and enclosures. Its compact 18mm width allows for efficient use of rail space.

Function Selection

1. Determine the required timing function (A through J) based on your application needs
2. Set the function dial to the corresponding letter position
3. For cyclical functions (C and D), adjust the ratio setting dial to establish the desired ON/OFF proportions

Time Range Setting

1. Select the appropriate time range dial position based on your required duration
2. Fine-tune the timing within the selected range using the time setting dial
3. Verify LED indicators for proper operation: Green LED indicates power, Red LED shows relay status

Compliance and Quality Assurance

The FCT18-M multifunction time relay is manufactured to meet or exceed international quality and safety standards:

• GB/T 14048.5 – Chinese national standard for low-voltage switchgear and controlgear
• IEC60947-5-1 – International standard for control circuit devices and switching elements
• EN68612-1 – European safety standard for electrical equipment

Why Choose the VIOX FCT18-M Multifunction Time Relay?

The FCT18-M stands out among timing relays for several compelling reasons:

Versatility and Adaptability

With 10 distinct timing functions and extensive range settings, this single device can replace multiple specialized timers, simplifying inventory management and reducing spare parts requirements.

Reliability in Demanding Environments

Engineered to withstand industrial conditions, the FCT18-M maintains precise timing even in applications with electrical noise, temperature variations, and continuous operation.

Simple Configuration

Intuitive dial controls and clear markings allow for quick setup and adjustment without specialized tools or software, reducing commissioning time and simplifying maintenance.

Economical Total Cost of Ownership

With its long mechanical and electrical life ratings, wide voltage range compatibility, and multi-function capability, the FCT18-M delivers exceptional long-term value for industrial timing applications.

Conclusion

The VIOX FCT18-M multifunction time relay represents the ideal solution for industrial timing control, offering unmatched versatility, precision, and reliability in a compact, rail-mounted package. Whether your application requires straightforward delay operations or complex sequencing, this adaptable timer provides the functionality needed for optimal process control.

For additional information, technical support, or to discuss your specific application requirements, please contact our engineering team at VIOX. We’re committed to helping you implement the perfect timing solution for your industrial control needs.

*The above information is subject to change without further notice