SMA MEDIUM VOLTAGE POWER STATION 500SC-JP - Checking the Heating Elements and Hygrostat

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:
• Check whether any warning message or label is damaged or missing.
Replace any warning messages and labels which are missing or illegible. If necessary, you can order the labels
using the order number stated above. Contact us (see Section17, page256).
10.5.9 Checking the Heating Elements and Hygrostat
Figure 46: Position of the heating element and the hygrostat
Position Designation
A Hygrostat
B Heating element
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.
10 Maintenance
SMA Solar Technology AG
System ManualMVPS22JP-SH-en-11152