Circuito
ZX7-250 220V / 380V relé Boost y DC Bus: Dual puente rectificador to 530-560V
A circuit page explaining the ZX7-250 entrada etapa: dual puente rectificador behavior, relé switching, 220V/380V entrada lógica y a boosted bus DC around 530-560V.
alimentación de entrada section
The ZX7-250 potencia-placa explanation describes two puente rectifiers usado functionally as a single puente arrangement, con one path handling one half-cycle y another path handling the opposite half-cycle. relé switching changes depending on whether the entrada is 220V o 380V. In the described plataforma, the bus DC target is around 530-560V.
entrada etapa diagram
diagnóstico table
| Comprobación | Valor esperado | Significado si es anormal |
|---|---|---|
| puente rectificador paths | no short, correct rectificador behavior | shorted puente lights limitador con lámpara o quema fusible |
| relé action on 220V | two relé action described in notes | wrong state may prevent correct bus |
| relé action on 380V | one relé action described in notes | wrong state can overvoltage o undervoltage bus |
| bus DC | around 530-560V in this plataforma | too low means boost/switching/entrada falla; too high is dangerous |
| Auxiliary supply | feeds rieles de control after bus/entrada etapa | if missing, placa de control cannot start |
Safety note
The bus DC is lethal. Do not measure o test the boost section unless you are qualified y using rated probes, aislamiento y discharge procedures.