Description

FC36M 415V 3-Phase Dual Mode Thyristor Driver (c/w DIN Housing)

The FC36M 415V Dual Mode Firing Board (c/w DIN Housing) is a microprocessor-based three-phase thyristor driver designed for accurate and reliable SCR (thyristor) control in industrial power control systems. Supplied complete with a DIN rail mounting enclosure, it offers a compact and robust solution for panel builders and OEMs requiring simple installation and dependable performance.

Supporting both phase-angle and burst-fire firing modes, the FC36M provides flexible control of resistive and inductive loads across a wide range of industrial heating, motor control, and power conversion applications. Configured for 415V AC operation, this model eliminates the need for external phasing supply transformers, reducing wiring complexity while providing opto-isolated control inputs, adjustable ramp control, over-current protection, and an RJ45 communications port.

Key Features

The FC36M 415V Dual Mode Firing Board combines advanced SCR firing technology with flexible control options and a DIN rail enclosure for quick and reliable installation.

• 415V AC supply version
• Supplied complete with DIN rail mounting housing
• Microprocessor-based three-phase thyristor driver
• Dual operating modes: Phase Angle and Burst Fire
• Switch-selectable phase reversal
• Suitable for resistive and inductive loads
• Analogue and digital opto-isolated control inputs
• Adjustable soft-start ramp (0–30 seconds)
• Current limit and over-current latching protection
• LED status indicators for system monitoring
• RJ45 communications port for integration
• Simplified wiring with no external phasing transformer required

Technical Specifications

• Supply Voltage: 415V AC ±10%
• Frequency: 50/60Hz
• Controller Type: Microprocessor-based three-phase thyristor driver
• Operating Modes: Phase Angle or Burst Fire (switch selectable)
• Primary Fusing: Two HRC F1A ceramic fuses (20 × 5mm)
• Current Consumption: 350mA (full conduction)
• Initial Short-Circuit Gate Current: 500mA
• Sustaining Short-Circuit Gate Current: 250mA
• 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: 240Ω
• Opto-Isolated Digital Inputs: 5–24V DC
• Ramp Adjustment: 0–30 seconds
• Current Limit / Over-Current Trip: 0–100mV DC or 0–25V DC
• Load Selection: Resistive or Inductive (SW4 selectable)
• Operating Temperature: 0°C to +65°C
• Storage Temperature: 0°C to +65°C

PCB Dimensions

• PCB Size: 162mm (L) × 108mm (W) × 40mm (H)
• Fixing Holes: 4 × M3.5 clearance holes
• Fixing Centres: 150mm × 62mm

DIN Rail Enclosure

• Enclosure: Supplied complete with DIN housing
• Dimensions: 166mm (L) × 128mm (W) × 70mm (H)

Operation

The FC36M firing board generates precise gate firing pulses for three-phase SCR power controllers. Users can select between phase-angle firing for proportional power regulation or burst-fire control for efficient switching of resistive heating loads.

The controller accepts analogue voltage, current, or digital opto-isolated control signals and includes an adjustable soft-start ramp to minimise electrical stress during start-up. Built-in over-current protection provides a latching trip function to help protect both the controller and connected equipment.

The selectable load configuration allows operation with both resistive and inductive loads, providing excellent flexibility for industrial power control applications.

Applications

The FC36M 415V Thyristor Driver is ideal for:

• Three-phase SCR power controllers
• Industrial power supplies
• Half-controlled rectifiers
• Fully controlled rectifiers
• AC motor control
• DC motor control
• Soft starter systems
• Electric heater controllers
• Induction generators
• AC voltage regulators
• Industrial process control
• Manufacturing equipment
• Power conversion systems

Benefits

• Precise three-phase SCR firing control
• Supports both phase-angle and burst-fire operation
• DIN rail housing simplifies installation
• Eliminates the need for external phasing transformers
• Compatible with analogue and digital control signals
• Adjustable soft-start reduces electrical stress
• Built-in over-current protection improves system safety
• Suitable for resistive and inductive loads
• Reliable microprocessor-based operation
• Easy integration into industrial automation systems

Safety & Installation

• Installation should only be carried out by suitably qualified personnel.
• Isolate all power supplies before installation or maintenance.
• Ensure the correct 415V supply version is installed.
• Mount the enclosure securely onto a suitable DIN rail within an electrical control panel.
• Configure the operating mode and load type before commissioning.
• Fit suitable external circuit protection in accordance with local electrical regulations.
• Ensure adequate enclosure ventilation and operate within the specified temperature range.

.X20004 – FC36M User Manual(7)