FCT18-AR On-Delay Time Relay
Precision Timing Control with Retrigger Functionality
Product Overview
The FCT18-AR is a high-precision on-delay relay with advanced retrigger functionality. Engineered for industrial automation and control systems, it provides reliable timing control with exceptional accuracy (±0.1%) and durability. With its compact 18mm DIN rail design and wide operating voltage range (12-240V AC/DC), the FCT18-AR is the optimal solution for demanding industrial applications requiring precise timing control with retrigger capabilities.
Key Technical Advantages
Universal Voltage Input
Operates with 12-240V AC/DC, compatible with global industrial power standards.
Advanced Retrigger Function
Control signal (S) applied starts timing; output (R) closes after preset time (T) and remains closed until next control signal applied.
Ultra-Compact Design
Space-saving 18mm width (90×18×64mm) for high-density control panels.
Exceptional Accuracy
Repeat accuracy ∆< ±0.5% and Time setting accuracy ∆< ±0.1%.
Industrial Robustness
Designed for -20°C to +60°C environments with EMI resistance.
Flexible Triggering
Supports NPN or PNP input options for versatile integration.
High-Capacity Output
16A C/O contacts (1 or 2 sets) for industrial loads.
EMI Resistance
Strong resistance to electromagnetic interference for reliable operation in industrial environments.
Button Setting & Locking
Precision time setting via tactile buttons with locking protection to prevent accidental changes.
Industrial Application Scenarios
The FCT18-AR on-delay relay excels in scenarios where controlled delay with retrigger capability is critical. Below are key applications where its functionality delivers superior performance:
Conveyor Sorting Systems
When an object is detected (control signal S applied), timing starts. After preset time T, output closes to activate sorting mechanism. If another object is detected during timing, retrigger restarts timing.
Key Benefits:
- Ensures precise sorting regardless of object spacing
- Adapts to variable conveyor speeds
- Reduces sorting errors by 85%
Cooling System Control
Activate cooling fans after equipment starts. Control signal applied starts timing; fans activate after delay. Retrigger functionality allows reset if equipment cycles during operation.
Key Benefits:
- Prevents premature cooling activation
- Handles intermittent equipment operation
- Reduces energy consumption by 30%
Robotic Assembly Lines
Coordinate sequential operations in robotic assembly. Control signal applied starts timing; next operation activates after preset delay. Retrigger ensures operations restart if interrupted.
Key Benefits:
- Ensures precise operation sequencing
- Handles interruptions gracefully
- Increases assembly line efficiency by 25%
Timing Sequence
Timing Operation:
- Control signal (S) applied – timing starts
- After preset time (T) – output (R) closes
- Output remains closed until next control signal (S) applied
- Control signal can be shorter or longer than T
Wiring Diagram
Connection Guide:
Standard DIN rail mounting with screw terminals for secure industrial connections:
- A1/A2: Power supply terminals
- S: Control signal input
- 11/12/14 & 21/22/24: Output contacts (C/O)
- LED Indicator: Shows relay status
Parameter Setting
Time Adjustment Protocol:
Technical Specifications
| Parameter | FCT18-AR1 | FCT18-AR2 |
|---|---|---|
| Input terminal | A1-A2 | |
| Voltage range | AC230V / DC24V / ACDC12-240V | |
| Voltage tolerance | -15% ~ +10% | |
| Output type | 1 C/O contact | 2 C/O contacts |
| Rated current | 1×16A | 2×16A |
| Power consumption | AC 3.5VA / DC 2.0W | |
| Time delay setting accuracy | ±0.1% of full-scale value | |
| Repeat accuracy | Δt < ±0.5% | |
| Mechanical life | 10 million operations | |
| Electrical life | 100,000 operations | |
| Ambient temperature | -20°C to +60°C | |
| Mounting | DIN rail EN/IEC 60715 | |
| IP rating | IP20 | |
| Dimensions | 90×18×64mm | |
| Standards | IEC60947-5-1, EN6812-1 | |
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