Sunny Tripower Installation Manual
Table Of Contents
- 1 Information on this Document
- 2 Safety
- 3 Scope of Delivery
- 4 Product Description
- 5 Mounting
- 6 Electrical Connection
- 6.1 Safety during Electrical Connection
- 6.2 Overview of the Connection Area
- 6.3 Connecting Conduits to the Connection Unit
- 6.4 Connecting the Grounding Conductor
- 6.5 Connecting the PV Array to the Connection Unit 600-US
- 6.6 Connecting the PV Array to the Connection Unit 1000-US
- 6.7 Operating the Reverse Polarity Detection
- 6.8 Connecting the DC Output Cable for the Inverter to the Connection Unit
- 7 Commissioning
- 8 Disconnecting the Connection Unit from Voltage Sources
- 9 Troubleshooting
- 10 Decommissioning
- 11 Technical Data
- 12 Accessories
- 13 Contact
9 Troubleshooting SMA America, LLC
44 CU600-1000US-IA-en-10 Installation Manual
9 Troubleshooting
9.1 LED Signals
The LEDs are part of the reverse polarity detection of the Connection Unit 1000-US and signalize if a
string has been connected correctly or with the wrong polarity.
Figure 13: LED signals of the reverse polarity detection for the SMA Connection Unit 1000-US
Item LED Status Explanation
ALED INPUT A glowing red String at INPUT A is connected with the wrong polarity.
B LED middle glowing green String at INPUT A and/or INPUT B is connected
correctly
CLED INPUT B glowing red String at INPUT B is connected with the wrong polarity