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7.2 LCD Fault and Troubleshooting
The inverter will shut down automatically if the PV power generation system
fails, such as output short circuit, grid over-voltage/under-voltage, grid over-
frequency/under-frequency, high environmental temperature or internal
malfunction of the machine. The fault information will be displayed on the LCD
screen. Please refer to 6.4 History Record for detailed operation.
The causes of a fault can be identified based on the faults listed in Table 7-2
through Table 7-7. There are 4 types of fault: alarm, protection, warning and
hardware fault. Proper analysis is recommended before contacting CPS
Service to ensure your quickest time to resolution.
Table 7-2 LCD Troubleshooting WARNING
Recommended solutions:
1. Observe for 5 minutes to see whether the
alarm will be eliminated automatically
2. Contact post-sales service if not corrected
Recommended solutions:
1. Observe temperature display
2. Switch off external AC disconnect, then
back on to reboot the system
3. Contact post-sales service if not corrected
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