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5 Inverter Display and Indicators
continued...
5.5 Fault Displays
Faults are divided into 2 categories. CAT1 and CAT2.
CAT1 Fault
There are 5 types of fault:
1. BIT Failure
2. Ground Failure
3. PV1 Over Voltage
4. PV2 Over Voltage
Figure 18: CAT1 Display
5. System Error
The system will restore normal operating after the CAT1 fault is
cleared. If this fault continuously occurs, the system
Will shut down and will require the complete system to be
examined by a qualified engineer.
CAT2 Fault
There are 5 types of fault:
1. PV over Power
2. Grid Volt Error
3. Grid Frequency Error
4. TVS1 Failure
Figure 19: CAT2 Display
5. TVS2 Failure
There will be 2 lines of information displayed. The top line will
display the fault information.
If there is more than one fault, the display will roll with intervals
of 5 seconds.
The bottom line will display information of the operating status
and statistics. The display will roll with intervals of 5 seconds.
If faults 1, 4 or 5 occur, the system will operate normally but it is
advised that all TVS are replaced as soon as possible by a
qualified engineer.
If faults 2 or 3 occur the system will stop operating. The system
will start automatically if the grid connection returns to a normal
condition.
14
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