SMA MEDIUM VOLTAGE POWER STATION 500SC-JP - Troubleshooting in the Inverter

Error Cause and corrective measure
The MV transformer cannot
be reconnected.
The MV transformer is defective.
Corrective measures:
• Replace the MV transformer. Contact the Service (see Section17, page256).
There is air in the MV transformer.
Corrective measures:
• Check the protective devices.
• Ensure that no air is in the MV transformer.
• Refill the oil.
The MV transformer is too warm.
Corrective measures:
• Read off the temperature of the MV transformer from the contact thermometer.
• Allow the MV transformer to cool down.
• If the error reoccurs, contact the Service (see Section17, page256).
The relay in the station subdistribution is not working properly.
Corrective measures:
• Ensure that the relay in the station subdistribution is correctly functioning.
• Ensure that the cabling of the relay is intact.
9.3 Troubleshooting in the Inverter
9.3.1 Activating Alert in the Event of a Fault
You can be notified by e-mail of events that have occurred. This allows a rapid response to failures in the PV power
plant and minimizes downtimes. The alert is deactivated upon delivery.
Communication unit reports an error-type event after two averaging intervals
The communication unit reports error-type events which have persisted twice as long as the time set for averaging.
Example: If the averaging setting is 15 minutes, the communication unit will report an error once it has existed for
longer than 30 minutes.
Procedure:
1. Log into the user interface (see Section12.8.1, page177).
2. Select SunnyCentral > Settings > Data transmission.
3. In the field Notification active, select yes.
4. Select an option in the field Multiple Notices (24h/48h):
Option Explanation
yes You will receive an e-mail immediately upon occurrence of an event. If the event
persists after 24 hours and 48 hours, the e-mail will be sent again.
no You will receive an e-mail once when an event occurs. An e-mail with error-type
events is sent after two averaging intervals.
5. In the field E-mail address, enter the e-mail address. If an e-mail is to be sent to multiple e-mail addresses,
separate the e-mail addresses with commas.
9 Troubleshooting
SMA Solar Technology AG
System ManualMVPS22JP-SH-en-11118