SolarEdge SE3000 Installation Manual page 34

3
If the site is installed with an external DC switch between the power
optimizers and the inverter(s), then turn it ON.
4
Verify that P_OK appears, which indicates a connection to the power
optimizers. The number 0 indicates that no power optimizer has been paired
to this inverter. If you are re-pairing the power optimizers and inverters, the
number indicates the number of power optimizers that have been paired in
the past. If P_OK does not appear, check the power optimizer, strings and
DC input connections.
5
If the inverter is connected to the SolarEdge Monitoring server, verify that
S_OK appears. This denotes that the connection to the server is successful.
6
Verify that the Vac [v] on the LCD panel specifies the grid's correct AC
output voltage, in Volts.
7
Verify that the Vdc [v] on the LCD panel specifies the DC input voltage, in
Volts. There should be a safety voltage of 1 V for each power optimizer
connected to the inverter.
NOTE:
A measurement error on the inverter LCD of ±3 V is OK.
NOTE:
If the LCD panel shows 0 V:

Verify that the PV modules are are not shaded or otherwise obstructed.

Check for proper power optimizer, string and DC input connection.

Verify the correct polarity of the DC input connection.
8
Verify that Pac [w] on the LCD Panel specifies 0 as the AC output power, in
Watts. This is because the inverter is still off.
WARNING!
Verify that the ON/OFF indicator on the LCD panel, described above, reads OFF.
SolarEdge Installation Guide – MAN-01-00057-2.0
Commissioning the Installation
34