SMA MEDIUM VOLTAGE POWER STATION 500SC-JP - Checking the Inverter Surface

3. Check whether the door hinges move easily.
If the door hinges do not move easily, apply lubricant.
4. Lubricate all moving parts and movement points.
5. Tighten any loose screws with the appropriate torque.
6. If the inverter is installed in regions where below-freezing temperatures occur, apply the non-greasing antifreeze to
the profile cylinder of the door lock and the key switch in order to protect them from icing up.
10.4.5 Checking the Inverter Surface
Required maintenance material (not included in the scope of delivery):
☐ Abrasive cloth
☐ Degreaser
☐ Use touch-up sticks, paint brushes, cans of spray paint or, alternatively, 2K-PUR acrylic paint in the appropriate
RAL color to repair small-area surface damage. Observe the relevant instructions of the paint manufacturer.
☐ Use touch-up paint or alternatively 2K-PUR acrylic paint in the appropriate RAL color to repair large-area surface
damage. Observe the relevant instructions of the paint manufacturer.
☐ Use zinc plating with thick-layer passivation to repair damage on the zinc-plated steel frame in the base area, e.g.
LZ-09. Observe the relevant instructions of the manufacturer.
Position RAL color Color
Roof RAL 7004 Signal gray
Base RAL 7004 Signal gray
Enclosure RAL 9016 Traffic white
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. Remove dirt.
2. Check surfaces for damage or corrosion.
If the surfaces are damaged or corroded, repair them without delay or within three weeks at the latest.
3. To remove small-area surface damage:
• Sand the surface.
• Clean the surface with degreaser.
• Paint the surface.
4. To remove large-area surface damage:
• Sand the surface.
• Clean the surface with degreaser.
10 Maintenance
SMA Solar Technology AG
System Manual 143MVPS22JP-SH-en-11