SMA MEDIUM VOLTAGE POWER STATION 500SC-JP - Checking the Fans

Danger to life due to electric shock or electric arc if live components are touched
If the MVPowerStation and its devices are not correctly disconnected, dangerous voltages may be present in the
components which, if touched, will result in death or serious injury.
• Disconnect the MVPowerStation (see Section7.6, page101).
• After switching off the inverter, wait at least 15minutes before opening it to allow the capacitors to discharge
completely.
• Ensure that the MVPowerStation and its devices are voltage-free.
Procedure:
1. Check whether any ready indicator is red.
If a ready indicator is red, replace the surge arrester.
2. Use testing device to check that the surge arrester is ready for operation (instructions for testing are included in the
user manual of the testing device).
If the surge arrester is defective, replace it.
10.5.7 Checking the Fans
Danger to life due to electric shock or electric arc if live components are touched
If the MVPowerStation and its devices are not correctly disconnected, dangerous voltages may be present in the
components which, if touched, will result in death or serious injury.
• Disconnect the MVPowerStation (see Section7.6, page101).
• After switching off the inverter, wait at least 15minutes before opening it to allow the capacitors to discharge
completely.
• Ensure that the MVPowerStation and its devices are voltage-free.
Procedure:
1. Switch the inverter to Stop.
2. Connect the supply voltage (see Section7.9.1, page103).
☑ The fans start to run for a few moments.
✖ The fans do not start up?
• Contact Service partner.
10 Maintenance
SMA Solar Technology AG
System Manual 149MVPS22JP-SH-en-11