6 Maintenance
SMA Solar Technology AG
Maintenance Manual
45
SCCP-JP-B1-WA-en-22
6.4
Maintenance Work
6.4.1
Maintenance work with supply voltage present
6.4.1.1
Checking the DC switchgear
Figure 11: Indicators on the DC load-break switch
Position
Designation
A
Spring status indicator
B
Position indicator
C
ON button
D
OFF button
Requirements:
☐ Supply voltage must be present.
DANGER
Danger to life from electric shock due to live voltage
High voltages are present in the conductive components of the inverter. Touching live components results in death or
serious injury due to electric shock.
• After switching off the inverter, wait at least 15 minutes before opening it to allow the capacitors to discharge
completely.
• Wear suitable personal protective equipment for all work on the product.
• All work must be carried out in accordance with this document. All safety information must be observed.
• Do not touch any live components of the inverter or the medium-voltage grid. Comply with all applicable safety
regulations for handling medium-voltage grids.
Procedure:
1. Switch the inverter to
Stop
2. Open the doors of the interface cabinet.
Summary of Contents for Sunny Central 1000CP-JP
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