SolarEdge Key

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Chapter 2: Using the SolarEdge Key

SolarEdge Key User Guide MAN-01-00131-1.2

Disabling SafeDC

When connecting power optimizers directly to a non-SolarEdge

inverter without a Safety and Monitoring Interface, disabling the

SafeDC mode is required in order to reset the string before

connecting to the inverter.

NOTE:

Do not start the process of disabling SafeDC in case of low

battery.

NOTE:

Disable the safeDC for each string individually.

► To disable the SafeDC mode:

1 If using add-on power optimizers (OPIxxx or PxxxI), make sure

each power optimizer is connected to the PV module, as

described in the SolarEdge Power Optimizers Installation Guide.

2 Connect power optimizers in a string, as described in the

SolarEdge Power Optimizers Installation Guide.

3 Connect a string of power optimizers to the SolarEdge Key (see

Figure 2).

4 Check that the string voltage (Vo xxx.x) is compatible with

the number of optimizers. When power optimizers are in

SafeDC mode, the Vo of each optimizer is 1V dc.

5 Long press SafeDC Disable. The screen displays IndOP and

then N / Y?

6 Short press the right button (Confirm) to continue or the left

button (Esc) to abort;

If you confirmed, the screen displays a backward countdown

and then displays #OP: xx

(xx= number of power optimizers in the string, between 0-30).