5 Maintenance with DC, AC and Control Voltage Present
SMA America, LLC
22
SCCP-US-WH-US_en-31
Maintenance Manual
Figure 5: Position of the DC contactor
Requirements:
☐ Control voltage must be present.
☐ DC voltage must be present.
Procedure:
1. Switch the inverter to
Stop
. By doing so, the DC contactor is
audibly switched off.
2. Open the doors of the interface cabinet.
3. Check the switching state of the DC contactor.
☑ The DC contactor is switched off.
✖ The DC contactor does not switch off?
• Contact the SMA Service Line.
4. Check the bolted connections of the DC contactor for discolorations and damages. If the cable entries are discolored
or damaged, contact us (see Section 10, page 50).
Position
Designation
A
DC contactor
Summary of Contents for SC 500CP-US-10
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