.. _inverter_faults: ###### Faults ###### There is a total of four OIDs that make up a 128 bit wide field, with each bit representing a particular fault. Each of the OIDs contains 32 bits. If no bits are set (i.e. the four OIDs return 0), no fault is present. ================ ============== ``fault[0].flt`` Bits 0 to 31 ``fault[1].flt`` Bits 32 to 63 ``fault[2].flt`` Bits 64 to 95 ``fault[3].flt`` Bots 96 to 127 ================ ============== The table lists known faults, if the bit is set in the devices output then the fault is currently present: === ========================================================================================= Bit Description === ========================================================================================= 0 TRAP occured 1 RTC can't be configured 2 RTC 1Hz signal timeout 3 Hardware Stop by 3.3V fault 4 Hardware Stop by PWM Logic 5 Hardware Stop by ``Uzk`` overvoltage 6 ``Uzk+`` is above limit 7 ``Uzk-`` is above limit 8 Throttle phase ``L1`` overcurrent 9 Throttle phase ``L2`` overcurrent 10 Throttle phase ``L3`` overcurrent 11 Buffer capacitor voltage 12 Quartz fault 13 Grid under-voltage phase 1 14 Grid under-voltage phase 2 15 Grid under-voltage phase 3 16 Battery overcurrent 17 Relais test failed 18 Board overtemperature 19 Core overtemperature 20 (Heat)Sink 1 overtemperature 21 (Heat)Sink 2 overtemperature 22 Error in I2C communication with Power Board 23 Power Board error 24 PWM output ports defective 25 Insulation to small or not plausible 26 ``I`` DC component max (1A) 27 ``I`` DC component max slow (47mA) 28 Possible defect in one of the DSD channels (current offset too large) 29 Error in RS485 communication with Relais Box IGBT L1 BH defective 30 Phase to phase overvoltage 31 IGBT L1 BH defective 32 IGBT L1 BL defective 33 IGBT L2 BH defective 34 IGBT L2 BL defective 35 IGBT L3 BH defective 36 IGBT L3 BL defective 37 Long-term overvoltage phase 1 38 Long-term overvoltage phase 2 39 Long-term overvoltage phase 3 40 Overvoltage phase 1, level 1 41 Overvoltage phase 1, level 2 42 Overvoltage phase 2, level 1 43 Overvoltage phase 2, level 2 44 Overvoltage phase 3, level 1 45 Overvoltage phase 3, level 2 46 Overfrequency, level 1 47 Overfrequency, level 2 48 Undervoltage phase 1, level 1 49 Undervoltage phase 1, level 2 50 Undervoltage phase 2, level 1 51 Undervoltage phase 2, level 2 52 Undervoltage phase 3, level 1 53 Undervoltage phase 3, level 2 54 Underfrequency, level 1 55 Underfrequency, level 2 56 CPU exception NMI 57 CPU exception HardFault 58 CPU exception MemManage 59 CPU exception BusFault 60 CPU exception UsageFault 61 RTC Power on reset 62 RTC Oscillation stops 63 RTC Supply voltage drop 64 Jump of RCD current ``DC + AC > 30mA`` was noticed 65 Jump of RCD current ``DC > 60mA`` was noticed 66 Jump of RCD current ``AC > 150mA`` was noticed 67 RCD current ``> 300mA`` was notices 68 Incorrect ``+5V`` was noticed 69 Incorrect ``-9V`` was noticed 70 Incorrect ``+9V`` was noticed 71 Incorrect ``+3V3`` was noticed 72 Failure of RDC calibration was noticed 73 Failure of I2C was noticed 74 afi frequency generator failure 75 (Heat)sink temperature too high 76 ``Uzk`` is over limit 77 ``Usg A`` is over limit 78 ``Usg B`` is over limit 79 Switching On Conditions ``Umin`` phase 1 80 Switching On Conditions ``Umax`` phase 1 81 Switching On Conditions ``Fmin`` phase 1 82 Switching On Conditions ``Fmax`` phase 1 83 Switching On Conditions ``Umin`` phase 2 84 Switching On Conditions ``Umax`` phase 2 85 Battery current sensor defective 86 Battery booster damaged 87 Switching On Conditions ``Umin`` phase 3 88 Switching On Conditions ``Umax`` phase 3 89 Voltage surge or average offset is too large on AC-terminals (phase failure detected) 90 Inverter is disconnected from the household grid 91 Difference of the measured ``+9V`` between DSP and PIC is too large 92 ``1.5V`` error 93 ``2.5V`` error 94 ``1.5V`` measurement difference 95 ``2.5V`` measurement difference 96 The battery voltage is outside of the expected range 97 Unable to start the main PIC software 98 PIC bootloader detected unexpectedly 99 Phase position error (not 120° as expected) 100 Battery overvoltage 101 Throttle current is unstable 102 Difference between internally and externally measured grid voltage is too large in phase 1 103 Difference between internally and externally measured grid voltage is too large in phase 2 104 Difference between internally and externally measured grid voltage is too large in phase 3 105 External emergency turn-off signal is active 106 Battery is empty, not enough energy for standby 107 CAN communication timeout with battery 108 Timing problem 109 Battery IGBT's heat sink overtemperature 110 Battery heat sink temperature too high 111 Internal relais box error 112 Relais box PE off error 113 Relais box PE on error 114 Internal battery error 115 Parameter changed 116 3 attempts of island building are failing 117 Phase to phase undervoltage 118 System reset detected 119 Update detected 120 FRT overvoltage 121 FRT undervoltage 122 IGBT L1 free-wheeling diode defective 123 IGBT L2 free-wheeling diode defective 124 IGBT L3 free-wheeling diode defective 125 Single-phase mode is activated but not allowed for this device class (e.g. 10K) 126 Island detected === ========================================================================================= Additionally, recent versions list three additional bits: Number 127 makes sense, but the last two (128+129) can not be represented by the bit fields, so this might be an error. === ================================ Bit Description === ================================ 127 Neutral fault 128 Battery calibration failed 129 Power switch relay not confirmed === ================================