A34462 United Automation United Automation, A34462, Thyristor Trigger Module, 440V ac, 203 x 108 x 40mm
Description
United Automation, A34462, Thyristor Trigger Module, 440V ac, 203 x 108 x 40mm
Producer
United Automation
The product with part number A34462 (United Automation, A34462, Thyristor Trigger Module, 440V ac, 203 x 108 x 40mm)
is from company United Automation and distributed with basic unit price 484,83 EUR. Minimal order quantity is 1 pc.
Dimensions203 x 108 x 40mm Height40mm Input Voltage AC440V ac Length203mm Maximum Input Logic Voltage24V dc Maximum Operating Temperature+65 °C Minimum Input Logic Voltage5V dc Minimum Operating Temperature0 °C Mounting TypeScrew Mount Output Isolation3500Vrms Width108mm Product Details Dual Mode Firing Circuit & Power Module, FC36MV (400V) A three phase microprocessor based firing circuit is a populated printed circuit board primarily designed for incorporating into three phase power control assemblies for the control of thyristors (SCR’s). The unit is available in various supply voltage capabilities. Phase wiring installation is kept to a minimum, with simple gate/cathode outputs and no necessity for external phasing supply transformers. Auto Phase Rotation correction & Phase-Loss detection Switch selectable phasing reversal Control type: Phase angle, Burst fire, or Phase angle and Burst fire combination Analogue or digital input signal control options (opto isolated) Load type selection switch, for resistive or inductive applications Output status LED indication Current limit facility, switch selectable with LED indication Over current latching trip to 120% of maximum, with LED indication Adjustable ramp control 0 to 30 secondsApplications are universally acceptable for AC, DC, resistive or most inductive loads via thyristor pairs on three phase assembliesSCR Power handling gives smooth proportional control to all types of industrial processes which includes furnaces, electroplating, controlled rectifiers and transformers Trigger Modules Phase Angle Firing Features In each mains half-cycle the duration of thyristor or triac conduction is determined by the firing instant, relative to mains polarity changeover. Once switched on, the driven thyristors conduct power to the load until the end of each applied half-cycle, resulting in a chopped sine wave output. A ramp and pedestal input circuit, allowing variation of firing phase angle, enables more power through the load with increasing conduction angle. Step changes in load current generate Radio Frequency Interference (RFI). In sensitive applications this interference must be suppressed to comply with the relevant EMC standards or to prevent interaction with other components. This can be achieved by the addition of EMC mains filter networks. In repeating 1 second periods the number of complete mains sine waves is varied in its ON/OFF ratio, or duty cycle. The burst firing circuit provides trigger pulses coincident with the mains zero polarity changeover ensuring only complete half cycles are passed through to the resistive loads. Virtually no Radio Frequency Interference (RFI) is produced. Burst Firing Features
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