Power conversion system alerts

PCS alert codes

Showing 51–100 of 116

• PCS_a051 — Chg Int Bus Uv PCS_a051_chgIntBusUv The onboard charger fails to keep the intermediate bus, an internal component involved in AC/DC conversion, at the required voltage. AC charge rate will be reduced, or AC charging may be unavailable.
• PCS_a052 — Ac Voltage Not Present PCS_a052_acVoltageNotPresent AC voltage not present while being commanded to charge
• PCS_a053 — Chg Input V Drop High PCS_a053_chgInputVDropHigh The onboard charger detects a large voltage drop over time compared to initial voltage when charging commenced. AC charge rate is reduced. This alert is frequently associated with the condition of wiring or electrical power grids external…
• PCS_a054 — Chg Input V Drop Too High PCS_a054_chgInputVDropTooHigh Charging faulted due to too large of a voltage drop between starting charge and during charge
• PCS_a055 — Chg Line Impedance High PCS_a055_chgLineImpedanceHigh Charging derated due to high measured grid impedance (impedance detection algorithmn)
• PCS_a056 — Chg Line Impedance Too High PCS_a056_chgLineImpedanceTooHigh Charging faulted due to high measured grid impedance (impedance detection algorithmn)
• PCS_a057 — Chg Input Over Freq PCS_a057_chgInputOverFreq PCS charging input over-frequency
• PCS_a058 — Chg Input Under Freq PCS_a058_chgInputUnderFreq PCS charging input under-frequency
• PCS_a059 — Chg Input Ov Rms PCS_a059_chgInputOvRms PCS charging input RMS over-voltage
• PCS_a060 — Chg Input Ov Peak PCS_a060_chgInputOvPeak PCS charging input peak over-voltage
• PCS_a061 — Chg V Line Rationality PCS_a061_chgVLineRationality High DC offset present on charger input voltage sensor when voltage is not expected
• PCS_a062 — Chg I Line Rationality PCS_a062_chgILineRationality High DC offset present on charger input current sensor when charge functionality is not enabled. Indicates issue with vehicle if seen multiple times over multiple days.
• PCS_a063 — Chg V Out Rationality PCS_a063_chgVOutRationality Charger output voltage sensor mismatches high voltage processor's sensed value on CAN
• PCS_a064 — Chg I Out Rationality PCS_a064_chgIOutRationality High DC offset present on charger output current sensor when charging is not enabled
• PCS_a065 — Chg Pll Not Locked PCS_a065_chgPllNotLocked Charger's input voltage sensor cannot lock the AC input waveform when commanded to start AC charging
• PCS_a066 — Dcdc Hv Rationality PCS_a066_dcdcHvRationality PCS DCDC HV bus voltage reading differs from HVP HV bus voltage reading by an excessive amount
• PCS_a067 — Dcdc Lv Rationality PCS_a067_dcdcLvRationality PCS DCDC LV bus voltage reading differs from VCFRONT LV bus voltage reading by an excessive amount
• PCS_a068 — Dcdc Tankv Rationality PCS_a068_dcdcTankvRationality PCS DCDC tank voltage sensor's DC offset exceeds threshold while DCDC converter is inactive
• PCS_a069 — Chg Pfc Line Didt PCS_a069_chgPfcLineDidt The onboard charger AC input current measurement changed too much between switching cycles compared to acceptable range, causing reduced AC charge rate. This alert indicates an unexpected, sudden drop or spike in the measured current has o…
• PCS_a070 — Chg Pfc Line Dvdt PCS_a070_chgPfcLineDvdt The onboard charger input voltage measurement changed too much between switching cycles compared to acceptable range, causing reduced AC charge rate. This alert indicates an unexpected and sudden drop or spike in the measured voltage has o…
• PCS_a071 — Chg Pfc I Loop Rationality PCS_a071_chgPfcILoopRationality The onboard charger detects the accumulated difference between estimated current and measured current is too large, reducing AC charge rate or making AC charging unavailable.
• PCS_a072 — Cpu2 Cla Stopped PCS_a072_cpu2ClaStopped CPU2 CLA is not running
• PCS_a073 — Unexpected Ac Input Voltage PCS_a073_unexpectedAcInputVoltage AC voltage is present when not expected (indicates a bad charge cable / EVSE)
• PCS_a074 — Hv Bus Discharge Failure PCS_a074_hvBusDischargeFailure PCS DCDC failed to discharge HV bus
• PCS_a075 — Hv Bus Discharge Timeout PCS_a075_hvBusDischargeTimeout PCS DCDC timed out when attempting to discharge HV bus
• PCS_a076 — Dcdc En Deasserted Err PCS_a076_dcdcEnDeassertedErr DCDC PWM enable hardline de-asserted while DCDC was commanded to be active
• PCS_a077 — Micro Grid Wobble Detected PCS_a077_microGridWobbleDetected The Power Conversion System (PCS) electronic control unit (ECU) detects a wobble signature from the Tesla Powerwall.
• PCS_a078 — Chg Stop Dcdc Too Hot PCS_a078_chgStopDcdcTooHot AC charging is stopped because DCDC is too hot
• PCS_a079 — Eeprom Operation Error PCS_a079_eepromOperationError PCS EEPROM software module has detected an error
• PCS_a080 — Damaged Phase Detected PCS_a080_damagedPhaseDetected PCS has detected at least one damaged AC charging phase, AC charging power will be limited
• PCS_a081 — Dcdc Pchg Timeout PCS_a081_dcdcPchgTimeout PCS DCDC timed out attempting to precharge HV bus
• PCS_a082 — Dcdc Pchg Unsafe Di Voltage PCS_a082_dcdcPchgUnsafeDiVoltage HV bus voltage unsafe for drive inverter while PCS DCDC is attempting to precharge HV bus
• PCS_a083 — Trigger Odin PCS_a083_triggerOdin Triggers ODIN service to upload log buffer
• PCS_a084 — V Drop Fast In Parasitic Diode Region PCS_a084_vDropFastInParasiticDiodeRegion PCS detects an dangerous voltage drop on DC link when the voltage is in drive inverter's parasitic diode region
• PCS_a085 — Dcdc Fets Not Switching PCS_a085_dcdcFetsNotSwitching The Power Conversion System (PCS) electronic control unit (ECU) detects the DCDC tank current period is too long, indicating the DCDC metal-oxide-semiconductor field-effect transistor (MOSFETs) are not switching properly.
• PCS_a086 — Dcdc Insufficient Cooling PCS_a086_dcdcInsufficientCooling DCDC does not have enough cooling, DCDC system may limit its output power
• PCS_a087 — Nvram Record Status Error PCS_a087_nvramRecordStatusError PCS NVMM detect an error on EEPROM records
• PCS_a088 — Grid Freq Droop Detected PCS_a088_gridFreqDroopDetected The Power Conversion System (PCS) electronic control unit (ECU) detects the electrical grid frequency droops below its nominal level, indicating the grid may be experiencing heavy loads.
• PCS_a089 — Hv Bus Discharge Irrational PCS_a089_hvBusDischargeIrrational The Power Conversion System (PCS) electronic control unit (ECU) detects its DCDC converter is unable to regulate the voltage slew rate while the high voltage (HV) bus is discharging, causing the HV bus to discharge outside of the specified…
• PCS_a090 — Expected Ac Voltage Source Missing PCS_a090_expectedAcVoltageSourceMissing PCS detects one or more power converter expected AC voltage sources are missing, possibly due to bad utility wiring or vehicle HV harness connection
• PCS_a091 — Chg Int Bus Rationality PCS_a091_chgIntBusRationality The Power Conversion System (PCS) electronic control unit (ECU) detects irrational intermediate bus voltage behavior.
• PCS_a092 — Chg Power Limited By Bus Ripple PCS_a092_chgPowerLimitedByBusRipple The Power Conversion System (PCS) electronic control unit (ECU) detects the charging power is limited due to excessive intermediate bus voltage ripples, which may be caused by electrolytic capacitor degradation.
• PCS_a093 — Power Rail Rationality PCS_a093_powerRailRationality PCS detects one of its logical power rail's measurement becomes irrational
• PCS_a094 — Pcs Dcdc Need Service PCS_a094_pcsDcdcNeedService Power conversion system DCDC malfunction detected, PCS service is required
• PCS_a095 — Dcdc Sensorless Mode Active PCS_a095_dcdcSensorlessModeActive PCS enables the DCDC control to run under sensorless mode, possibly due to some malfunction hardware
• PCS_a096 — Micro Grid Over Loaded PCS_a096_microGridOverLoaded The Power Conversion System (PCS) electronic control unit (ECU) detects the micro grid frequency significantly droops below the expected operating threshold, indicating the micro grid is overloaded.
• PCS_a097 — Reboot Phase Detected PCS_a097_rebootPhaseDetected PCS has detected at least one reset during the boot up process. AC charging power might be limited if phase damaged is detected
• PCS_a098 — Grid Freq Droop Detected Silent PCS_a098_gridFreqDroopDetectedSilent PCS detects grid frequency starts to droop away from its norminal level, possibly the grid is under heavy loads
• PCS_a099 — Micro Grid Over Loaded Silent PCS_a099_microGridOverLoadedSilent PCS detects the grid frequency droops significantly, indicating the grid is over loaded
• PCS_a100 — Suspected Viper Chip Issue PCS_a100_suspectedViperChipIssue The Power Conversion System (PCS) electronic control unit (ECU) detects the viper chip is experiencing a condition affecting AC charging functionality.