SolarEdge SE K Series Installation Manual page 33

32 Step 3: Connecting Power Optimizers in PV strings
IMPORTANT SAFETY FEATURE
For a compliant PV Rapid Shutdown (PVRSS) installation, use no more than
30 Power Optimizers per PV string.
Enabling PVRSS from the inverter menu is only required if the installed
Power Optimizers were manufactured before 2015, otherwise it is enabled
by default.
NOTE
The DC bus of each unit is separate and not shared for all units. Therefore, in
addition to following the inverter design rules, each unit should follow the unit
design rules as detailed in the Technical Specifications.
1. Connect the Minus (-) output connector of the PV string's first Power Optimizer to
the Plus (+) output connector of the PV string's second Power Optimizer.
2. To minimize electromagnetic interference (EMI), make sure to minimize the distance
between the positive and negative DC cables.
For detailed instructions, see:
https://www.solaredge.com/sites/default/files/se-emi-
performance-application-note.pdf.
3. Connect the rest of the Power Optimizers in the PV string in the same manner.
4. If you intend to monitor the installation, using the SolarEdge Monitoring platform,
record the physical location of each Power Optimizer, as described in Creating
Logical and Physical Layout using Installation Information on page 83.
Figure 8: Power Optimizers connected in series
Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx