Código 230027: <location>Power unit: Prec harging DC link time monitoring

Message value: Enable signals: %1, Status: %2 Drive object: All objects Reaction: OFF2 Acknowledge: IMMEDIATELY Cause: 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 t here 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 pre-charging resistors are overheated because when there is no "ready for operation" (r0863.0) of the infeed unit, power is taken from the DC link. 8) The pre-charging resistors are overheated as the line contactor was closed during the DC link fast discharge through the Braking Module. 9) The DC link has either a ground fault or a short-circuit. 10) The pre-charging circ uit is possibly defective (only for chassis units). Fault value (r0949, interpret binary): Missing internal enable signals, power unit (lower 16 bit): (Inverted bit-coded representation FFFF hex -> all internal e nable signals available) Bit 0: Power supply of the IGBT gating shut down Bit 1: Reserved Bit 2: Reserved Bit 3: Ground fault detected Bit 4: Peak current intervention Bit 5: I2t exceeded Bit 6. Thermal model overtemperature calculated Bit 7: (heat sink, gating module, pow er unit) overtemperature measured Bit 8: Reserved Bit 9: Overvoltage detected Bit 10: Power unit has completed pr e-charging, ready for pulse enable Bit 11: STO terminal missing Bit 12: Overcurrent detected Bit 13: Armature s hort-circuit active Bit 14: DRIVE-CLiQ fault active Bit 15: Uce fault detected, transistor de-s aturated due to overcurrent/short-circuit Status, power unit (upper 16 bit, hexadecimal number): 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 bypass contactor to open -> change into the fault state 5: Wait for bypass contactor to open -> change into restart inhibit 6: Commissioning 7: Ready for pre-charging 8: Pre-charging started, DC link voltage lower 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: It was detected that the STO terminal was energized at the power unit See also: p0210 (Drive unit line supply voltage) SINAMICS-Alarms Diagnostics Manual (DAsl), 03/2009 Remedy: In general: - check the line supply voltage at the input terminals. - check the line supply voltage setting (p0210). - the following applies to booksize units: Wait (approx. 8 min.) until the pre-charging resistors have cooled down. For this purpose, preferably disc onnect the infeed unit from the line supply. Re 5): - carefully observe the permissibl e pre-charging frequency (refer to the appropriate Equipment Manual). Re 6): - check the total capacitance of the DC link and if required, correspondingly reduce the maximum permissible DC link capacitance (refer to the appropriate Equipment Manual). Re 7): - interconnect the ready for operation signal of the in feed unit (r0863.0) in the enable logic of the drives connected to this DC link. Re 8): - check the connections of the ex ternal line contactor. The line contactor must be open during the DC link fast discharge. Re 9): - check the DC link regarding ground fault or short-circuit. See also: p0210 (Drive unit line supply voltage)