代碼 P11-CONV-11315: C3 Line Dip

Type: Alarm 1 The bus voltage has fallen below the value specified in P451 [Pwr Loss A Level] or P454 [Pwr Loss B Level] (port 0) minus 20 volts. Until the converter has established communications with the main control board, this value defaults to 180V below the converter bus memory. The converter stops firing the SCRs until the nominal value of the DC bus voltage for the present AC line voltage is within 60 volts of P12 [DC Bus Memory] (port 0). If the line dip condition persists for more than 60 seconds the alarm becomes a fault. • Verify the power wiring connections. • Compare the actual DC bus voltage to the value displayed in [Cn DC Bus Volt]. If the values are different, replace the converter gate firing board. Resettable Fault Coast Y Y