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Split from F30027 URGENT !!.

Dear,

Pls proceed as follow

The power unit DC link was not able to be pre-charged within the expected time. 1) There is no line supply voltage connected. 2) The line contactor/line side switch has not been closed. 3) The line supply voltage is too low. 4) Line supply voltage incorrectly set (p0210). 5) The pre-charging resistors are overheated as there were too many pre-charging operations per time unit. 6) The pre-charging resistors are overheated as the DC link capacitance is too high. 7) The DC link has either a ground fault or a short-circuit. 8) Pre-charging circuit may be defective.

Fault value (r0949, interpret binary): yyyyxxxx hex: yyyy = power unit state 0: Fault status (wait for OFF and fault acknowledgement). 1: Restart inhibit (wait for OFF). 2: Overvoltage condition detected -> change into the fault state. 3: Undervoltage condition detected -> change into the fault state. 4: Wait for bridging contactor to open -> change into the fault state. 5: Wait for bridging contactor to open -> change into restart inhibit. 6: Commissioning. 7: Ready for pre-charging. 8: Pre-charging started, DC link voltage less than the minimum switch-on voltage. 9: Pre-charging, DC link voltage end of pre-charging still not detected. 10: Wait for the end of the de-bounce time of the main contactor after pre-charging has been completed. 11: Pre-charging completed, ready for pulse enable. 12: Reserved. xxxx = Missing internal enable signals, power unit (inverted bit-coded, FFFF hex -> all internal enable signals available) Bit 0: Power supply of the IGBT gating shut down. Bit 1: Ground fault detected. Bit 2: Peak current intervention. Bit 3: I2t exceeded. Bit 4. Thermal model overtemperature calculated. Bit 5: (heat sink, gating module, power unit) overtemperature measured. Bit 6: Reserved. Bit 7: Overvoltage detected. Bit 8: Power unit has completed pre-charging, ready for pulse enable. Bit 9: Reserved. Bit 10: Overcurrent detected. Bit 11: Reserved. Bit 12: Reserved. Bit 13: Vce fault detected, transistor de-saturated due to overcurrent/short-circuit. Bit 14: Undervoltage detected. See also: p0210 (Drive unit line supply voltage) Remedy: In general:- check the line supply voltage at the input terminals.- check the line supply voltage setting (p0210).- wait until the pre-charging resistors have cooled down. For this purpose, preferably disconnect the infeed unit from the line supply. Re 5):- carefully observe the permissible pre-charging frequency (refer to the appropriate Equipment Manual). Re 6):- check the capacitance of the DC link and, if necessary, reduce it in accordance with the maximum permissible DC link capacitance (see relevant Equipment Manual). Re 7):- check the DC link for a ground fault or short circuit. See also: p0210 (Drive unit line supply voltage)