6 Maintenance
SMA Solar Technology AG
Maintenance Manual
SCCP-JP-B1-WA-en-22
50
4. Measure the voltage at the supply voltage output of the UPS at
-X400
terminal 5 and
-X402
terminal 5.
☑ The voltage is approximately 24 V.
✖ Voltage deviates significantly?
• Contact Service.
5. Disconnect the supply voltage (see Section 4.2.4, page 26).
6. Measure the time until the communication unit switches off.
☑ The communication unit switches off after 15 seconds at the earliest.
✖ The communication unit switches off earlier?
• Contact SMA Solar Technology AG.
6.4.2
Maintenance Work in Disconnected State
6.4.2.1
Performing the Visual Inspection
DANGER
Danger to life due to electric shock or electric arc if live components are touched
• Switch off the inverter and wait at least 15 minutes before opening it to allow the capacitors to discharge
completely.
• Disconnect the inverter (see Section 4, page 25).
Procedure:
1. Check the inverter for visual defects such as discoloration, dirt, damage and scratches on the enclosure.
If visual defects are present, repair these immediately.
2. Ensure that there are no objects on or around the inverter that are flammable or that could otherwise endanger
operational safety.
Содержание Sunny Central 1000CP-JP
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