WSTECH APS Series - Table 25: Extract of APU Error Codes (Continued)

Original Operating Instructions
APS Series – Outdoor Hybrid Inverter
Troubleshooting
APS-Series 120 Operating Instructions v320 EN
Page 139 of 213
Table 25: Extract of APU Error Codes (continued)
Code
Error
Corrective Action
61
DC switch
Check DC switch
62
Enable 24V
Check enable switch and door
switches
63
Driver version L1
Check power stack
64
Driver version L2
Check power stack
65
Driver version L3
Check power stack
79
Overcurrent Idc HW
Check DC source
84
Overvoltage Vdc neg. HW
Check DC source
85
Undervoltage Vdc neg. HW
Check DC source
86
Overvoltage Vdc pos. HW
Check DC source
87
Undervoltage Vdc pos. HW
Check DC source
88
Overvoltage Vdc total HW
Check DC source
89
Overtemperature IGBT HW
Check cooling
90
Overcurrent Booster HW
Check DC source
92
Supply error
Check Control Card
93
Supply error delayed
Check Control Card
95
No driver detected
Check powerstack
96
Overvoltage VL1 level 4
Check grid voltage
97
Overvoltage VL2 level 4
Check grid voltage
98
Overvoltage VL3 level 4
Check grid voltage
99
Overvoltage mean level 1
Check grid voltage
100
Overtemperature
Check cooling
102
Voltage measurement Island grid
Check grid voltage
103
Unbalanced grid voltage
Check grid voltage
104
Unbalanced phase angle
Check grid voltage
105
Unbalanced grid current
Check grid voltage
106
Overcurrent Idc SW pos
Check power stack
107
Overcurrent Idc SW neg
Check DC source
108
Undervoltage VL1 level 3
Check grid voltage
109
Undervoltage VL2 level 3
Check grid voltage
110
Undervoltage VL3 level 3
Check grid voltage