WSTECH APS Series - APU Error Codes and Corrective Actions

Original Operating Instructions
APS Series – Outdoor Hybrid Inverter
Troubleshooting
APS-Series 120 Operating Instructions v320 EN
Page 138 of 213
7.3 APU Error Codes
Table 24: Extract of APU Error Codes
Code
Error Description
Corrective Action
1
Overtemperature IGBT L1
Check cooling
2
Overtemperature IGBT L2
Check cooling
3
Overtemperature IGBT L3
Check cooling
4
Overtemperature inductance
Check cooling
5
Overvoltage Vdc pos. SW
Check DC source
6
Overvoltage Vdc neg. SW
Check DC source
7
Overvoltage Vdc total SW
Check DC source
8
Undervoltage Vdc pos. SW
Check DC source
9
Undervoltage Vdc neg. SW
Check DC source
10
Undervoltage Vdc total SW
Check DC source
11
Overcurrent Idc SW
Check DC source
16
Grid rotation Error
Check grid voltage
17
Overfrequency level 1
Check grid voltage
18
Overfrequency level 2
Check grid voltage
19
Overfrequency level 3
Check grid voltage
20
Underfrequency level 1
Check grid voltage
21
Underfrequency level 1
Check grid voltage
22
Overvoltage VL1 level 1
Check grid voltage
23
Overvoltage VL1 level 2
Check grid voltage
24
Overvoltage VL1 level 3
Check grid voltage
25
Overvoltage VL2 level 1
Check grid voltage
26
Overvoltage VL2 level 2
Check grid voltage
27
Overvoltage VL2 level 3
Check grid voltage
28
Overvoltage VL3 level 1
Check grid voltage
29
Overvoltage VL3 level 2
Check grid voltage
30
Overvoltage VL3 level 3
Check grid voltage
31
Undervoltage VL1 level 1
Check grid voltage
32
Undervoltage VL1 level 2
Check grid voltage
33
Undervoltage VL2 level 1
Check grid voltage
34
Undervoltage VL2 level 2
Check grid voltage
35
Undervoltage VL3 level 1
Check grid voltage
36
Undervoltage VL3 level 2
Check grid voltage
40
Overcurrent Idc HW
Check DC source
44
Overtemperature IGBT HW
Check cooling
46
Supply error
Check Control Card
47
Supply error delayed
Check Control Card
48
Overvoltage Vdc neg. HW
Check DC source
49
Undervoltage Vdc neg. HW
Check DC source
50
Overvoltage Vdc pos. HW
Check DC source
51
Undervoltage Vdc pos. HW
Check DC source
52
Overvoltage Vdc total HW
Check DC source
53
Supply error 15V neg. SW
Check Control Card
54
Supply error 15V pos. sum. SW
Check Control Card
56
Supply error 24V driver pos. SW
Check Control Card
57
Supply error 24V neg. SW
Check Control Card
58
Supply error 24V pos. SW
Check Control Card
59
Supply error 5V pos. SW
Check Control Card
60
AC switch
Check AC switch