Dry Contact Connection; Operating The Pv Inverter; Figure 5-12 Dry Contact Connection - Delta SOLIVIA 15 EU G3 TL Bedienungsanleitung

5.5.3 Dry Contact Connection

Provides 2 sets of Dry Contact function - NO1 and NO2. Please refer to Figure 5-9 for connection
diagram and read below for more details.
NO1: When the inverter is on the grid, the COM and NO1 will be shorted.
NO2: When the fan fails, COM and NO2 will be shorted.
COM
NO1: On Grid
NO2: Fan Fail
Figure 5-14 Dry contact connection

6. Operating the PV inverter

After installation, please confirm the AC, DC, and Communication connections are correct. Follow
the steps below to startup the inverter:
Step 1: Check the PV array DC voltage:
• Uncover the PV arrays and expose them to full sunlight.
• Measure the PV array open circuit DC voltage across the DC positive (+) and negative (-)
terminals in the DC distribution box. This voltage must be greater than 250Vdc and less than
1000Vdc.
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WARNING! BURN HAZARD
The enclosure temperature may exceed 70° C while in operation.
Injury may occur owing to the hot surface. Please do not touch!