Thyristor Trigger Modules

Single Cycle/Dual Cycle Burst Fire Driver Module, BM2R The BM2R 50Hz module has been designed to offer 2-Phase switched, out of three-phase Burst Firing of a thyristor assembly or complete thyristor controller for driving resistive loads. In Single-Cycle or Dual-Cycle mode, these modules use the fastest burst rates possible, providing very accurate control and minimising Harmonic distortion & Flicker within the system. In addition the standard variable burst rate, adjustable from 1 to 30 seconds, is also available. Standard DIN Rail Mount Inhibit Input Control Options (0-5V, 0-10V, 1-5V, 2-10V, 0-20mA, 4-20mA, Manual Potentiometer) Single-Cycle / Dual-Cycle or adjustable Burst Firing On Board Fuse (1A) Isolated Pulse Transformer Outputs LED Indication of Power, Burst Rates and Fault Conditions The number of complete mains cycles during fixed repeating periods (typically 1 to 10 seconds) is varied, thus altering the duty cycle or on-/off-time ratio. Trigger pulses coincide with the zero-crossing times of the mains supply thus ensuring no RFI is produced when using resistive loads.