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