WSTECH APS Series - APS Error Codes and Corrective Actions

Original Operating Instructions
APS Series – Outdoor Hybrid Inverter
Troubleshooting
APS-Series 120 Operating Instructions v320 EN
Page 131 of 213
7.1 APS Error Codes
Table 22: Extract of APS Error Codes
Code
Error Description
Corrective Action
3
APU 1 / 2 cooling fluid low
Fill up cooling fluid
4
APU 3 / 4 cooling fluid low
Fill up cooling fluid
5
No enable signal
Deactivate enable switch, Close
Door/s, check feedback
switches
7
Medium voltage switchgear off
Medium voltage switchgear on,
check feedback switch
8
DI Temperature not OK
If option heating is ordered:
Check cabinet temperature
9
DI medium voltage transformer error
Check Buchholz relay Temp1,
Temp2, Pressure, Gas
19
Supply voltage low
Check supply Voltage (-TB1)
24
Medium voltage transformer temperature
high
Check transformer temperature
30
APU 1 powerlink
Check Powerlink connection
31
APU 2 powerlink
Check Powerlink connection
32
APU 3 powerlink
Check Powerlink connection
33
APU 4 powerlink
Check Powerlink connection
36
APU 1 type mismatch
Check Control Card Type
37
APU 2 type mismatch
Check Control Card Type
38
APU 3 type mismatch
Check Control Card Type
39
APU 4 type mismatch
Check Control Card Type
45
APMC – Battery missing/empty
Check APMC – Battery
46
APU1/2 Insulation Monitoring (pos.
ground)
Check Feedback pos. Ground
47
APU3/4 Insulation Monitoring (pos.
ground)
Check Feedback pos. Ground
48
APU1/2 Insulation Monitoring (neg.
ground)
Check Feedback neg. Ground
49
APU3/4 Insulation Monitoring (neg.
ground)
Check Feedback neg. Ground
50
APU1/2 extern Insulation Monitoring
Check Feedback ext. IMD
51
APU3/4 extern Insulation Monitoring
Check Feedback ext. IMD
57
Humidity to high
Check humidity/dehumidifier