FCT18-WgR Asymmetrical On-Off Delay Relay
Advanced Timing Control with Independent On/Off Delays and Alternating Signals
Product Overview
The FCT18-WgR is an advanced asymmetrical on-off delay relay with control signal functionality. Designed for complex industrial timing applications, it features independent on-delay (T1) and off-delay (T2) settings with alternating signal response. Engineered for precision (±0.1%) and reliability across a wide voltage range (12-240V AC/DC), this relay provides unmatched flexibility for demanding automation systems.
Key Technical Advantages
Asymmetrical Timing
Independent on-delay (T1) and off-delay (T2) settings for complex sequences.
Alternating Signal Logic
Automatic switching between on-delay and off-delay modes with each control signal.
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%.
Universal Voltage Input
Operates with 12-240V AC/DC, compatible with global industrial power standards.
Industrial Robustness
Designed for -20°C to +60°C environments with EMI resistance.
High-Capacity Output
16A C/O contacts (1 or 2 sets) for industrial loads.
Button Setting & Locking
Precision time setting via tactile buttons with locking protection to prevent accidental changes.
Industrial Application Scenarios
The FCT18-WgR excels in scenarios requiring complex timing sequences with independent on and off delays. Below are key applications where its asymmetrical timing delivers superior performance:
Press Machine Control
Controls press operation with different approach (on-delay) and release (off-delay) times for complex forming processes.
Key Benefits:
- Precision control for material forming
- Independent T1/T2 settings for optimal press timing
- Reduces cycle time while maintaining quality
Cooling System Sequencing
Manages staggered cooling fan activation (different on-delays) and shutdown (different off-delays) for thermal management.
Key Benefits:
- Optimized thermal management
- Reduces power surges during startup
- Extends equipment lifespan
Conveyor Zone Control
Coordinates conveyor sections with different start delays (T1) and stop delays (T2) for material flow optimization.
Key Benefits:
- Prevents material pileup at junctions
- Reduces mechanical stress on conveyors
- Improves overall production efficiency
Staged Lighting Systems
Controls lighting zones with different activation delays (T1) and deactivation delays (T2) for energy savings.
Key Benefits:
- Energy optimization in large facilities
- Creates lighting transition effects
- Extends bulb life through soft cycling
Motor Sequencing
Manages multiple motors with different startup delays (T1) and cooldown periods (T2) in complex machinery.
Key Benefits:
- Prevents power surges during startup
- Ensures proper cooling sequence
- Reduces mechanical stress on drive systems
Chemical Process Control
Controls valve sequencing with different open/close delays for precise chemical mixing and transfer.
Key Benefits:
- Precise control of chemical reactions
- Prevents cross-contamination between batches
- Optimizes process cycle times
Timing Sequence Operation
Subsequent control signals alternate between on-delay and off-delay modes. During any timing sequence (T1 or T2), additional control signals are ignored to maintain timing integrity. This alternating pattern enables complex automation sequences with a single control signal input.
Timing Sequence
Timing Operation:
First control signal (S): On-delay starts, output (R) closes after T1
Second control signal (S): Off-delay starts, output (R) opens after T2
Subsequent control signals alternate between on-delay and off-delay
Control signals are invalid during active timing sequences
Wiring
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)
Parameter Setting
Time Adjustment Protocol:
Technical Specifications
| Parameter | FCT18-WgR1 | FCT18-WgR2 |
|---|---|---|
| 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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