Description

FC36MV 230V High Power 3-Phase Dual Mode Thyristor Driver

The FC36MV 230V Dual Mode Firing Board is a high-performance, microprocessor-based three-phase thyristor driver designed to deliver precise and reliable SCR (Silicon Controlled Rectifier) firing for demanding industrial power control applications. Configured for 230V AC operation, this populated PCB integrates easily into three-phase power control assemblies while simplifying installation through direct gate/cathode outputs, eliminating the need for external phasing transformers.

Designed for flexibility, the FC36MV supports phase-angle, burst-fire, and combination firing modes, allowing accurate control of resistive and inductive loads across a wide range of industrial processes. Advanced features including automatic phase rotation correction, phase-loss detection, opto-isolated inputs, adjustable soft-start ramp control, and comprehensive over-current protection ensure dependable performance in high-power environments.

Key Features

The FC36MV 230V High Power Three-Phase Thyristor Driver combines advanced SCR firing technology with intelligent protection features, making it ideal for demanding industrial power control systems.

• 230V AC supply version
• Microprocessor-based high-power three-phase thyristor driver
• Auto phase rotation correction and phase-loss detection
• Switch-selectable phase reversal
• Supports Phase Angle, Burst Fire and Combination firing modes
• Opto-isolated analogue and digital control inputs
• Selectable resistive or inductive load operation
• Adjustable soft-start ramp (0–30 seconds)
• Current limit and over-current protection
• LED status indicators for real-time diagnostics
• Simplified wiring without external phasing transformers
• Suitable for high-power industrial SCR applications

Technical Specifications

• Supply Voltage: 230V AC ±10%
• Frequency: 50/60Hz
• Controller Type: Microprocessor-based high-power three-phase thyristor driver
• Operating Modes: Phase Angle, Burst Fire or Combination firing
• Primary Fusing: Three HRC F1A ceramic fuses (20 × 5mm)
• Current Consumption: 650mA (full conduction)
• Initial Short-Circuit Gate Current: 750mA
• Sustaining Short-Circuit Gate Current: 400mA
• Initial Pulse Voltage: 9V
• Sustaining Pulse Voltage: 5V
• Pulse Train Frequency: 25kHz
• Voltage Control Inputs: 0–5V DC or 0–10V DC
• Input Resistance: 10kΩ / 20kΩ
• Current Control Input: 4–20mA
• Current Input Resistance: 270Ω
• Opto-Isolated Digital Inputs: 5–24V DC
• Ramp Adjustment: Adjustable from 0–30 seconds
• Current Limit / Over-Current Trip: 0–5V DC
• Load Selection: Resistive or Inductive (SW4 selectable)
• Operating Temperature: 0°C to +65°C
• Storage Temperature: 0°C to +65°C
• PCB Dimensions: 203mm (L) × 108mm (W) × 40mm (H)
• PCB Fixing Holes: 6 × M3.5 mounting holes
• PCB Fixing Centres: Two rows spaced 75mm apart with 96.5mm between mounting holes
• DIN Rail Enclosure (Optional): 207mm (L) × 128mm (W) × 70mm (H)

Operation

The FC36MV generates highly accurate gate firing pulses for three-phase SCR power controllers used in high-power industrial systems. Users can select between phase-angle, burst-fire, or combination firing modes depending on the application’s control requirements.

The controller accepts analogue voltage, current, and opto-isolated digital control signals while providing automatic phase rotation correction and phase-loss detection to ensure reliable operation. Adjustable ramp control allows a smooth start-up sequence, reducing electrical stress on connected equipment, while integrated over-current protection helps safeguard both the firing board and the power electronics.

The selectable load configuration enables optimum performance with both resistive and inductive loads, making the FC36MV suitable for a wide range of industrial power control applications.

Applications

The FC36MV 230V High Power Thyristor Driver is ideal for:

• High-power three-phase SCR power controllers
• Industrial power supplies
• Half-controlled rectifiers
• Fully controlled rectifiers
• Furnace control systems
• Electroplating equipment
• Transformer control systems
• AC motor control
• DC motor control
• Soft starter systems
• Industrial heater controllers
• Industrial process automation
• Power conversion equipment
• Manufacturing machinery

Benefits

• High-performance SCR firing for demanding industrial applications
• Supports phase-angle, burst-fire and combination firing modes
• Automatic phase rotation correction improves installation flexibility
• Phase-loss detection increases operational reliability
• Simplifies wiring by eliminating external phasing transformers
• Compatible with analogue and digital control systems
• Adjustable soft-start reduces electrical and mechanical stress
• Built-in over-current protection enhances system safety
• Suitable for both resistive and inductive load applications
• Reliable microprocessor-based control for long-term industrial use

Safety & Installation

Installation should only be carried out by suitably qualified personnel.

Always isolate all electrical supplies before installation or maintenance. Ensure the correct 230V AC supply version is used for the intended application. Mount the PCB securely using the recommended fixing centres or install within an appropriate DIN rail enclosure where required.

Configure the firing mode, load type and control inputs before commissioning. Fit suitable external circuit protection in accordance with local electrical regulations and ensure adequate ventilation within the control panel. Operate the controller only within the specified temperature range.