VX4RZD303 | Schneider Electric Telemecanique Rectivar Control Board

– thyristor/diode single phase half controlled bridge, comprising 2 modulesmounted on a heat sink- a Hall effect sensor- a control transformer- a sub-assembly comprising a power interface board and an excitation / fieldweakening control board.- the supply units- the excitation bridge thyristor firing and protection circuits- a control transformer supply adaptation link- two power/control supply separation links- a rating selection link.- excitation current regulation- pulse train firing circuit- safety devices for switching on and off- excitation presence safety devices- voltage regulation- “reduced flux” function- sensor feedback presence when adding the galvanic isolation board- overvoltage during field weakening operation safety device