Step 6, Disabling Safedc™ (Only When Connecting To Non-Solaredge Inverters Without Smi) - SolarEdge Power Optimizer Installation Manual

Step 6, Disabling SafeDC™ (Only when Connecting to
Non-SolarEdge Inverters without SMI)
WARNING!
In installations with SolarEdge Inverters or with SMI, make sure that the SafeDC™ is enabled for all
the power optimizers.
NOTE:
This section is relevant only when connecting power optimizers to a non-SolarEdge inverter and not
using the SolarEdge Safety & Monitoring Interface.
SolarEdge power optimizers are provided in a SafeDC mode: when connected to a PV module these power
optimizers will output a safe voltage of 1VDC until they are paired either with a SolarEdge inverter or with
the SolarEdge Safety & Monitoring Interface, and until power production has started.
When connecting power optimizers directly to a non-SolarEdge inverter without a Safety and monitoring
Interface, disabling the SafeDC mode is required using the SolarEdge Key product. For more information,
refer to the SolarEdge Key User Manual available on the SolarEdge website at
http://www.solaredge.com/groups/support/downloads.
SafeDC Enable Button
►
To disable the SafeDC mode:
1
Press the ON/OFF button (
SolarEdge Key LCD. XXX is the most recent string voltage measurement.
NOTE:
Only one string of power optimizers can be connected to a SolarEdge Key (4-30 power optimzers).
2
Connect the Plus (+) connector of the string of optimizers to the Plus (+) input connector of the
SolarEdge Key. Connect the Minus (-) output connector of the string of optimizers to the Minus (-)
input connector of the SolarEdge Key (see Figure 9).
16
Figure 8: The SolarEdge Key
) to turn the SolarEdge Key ON. The message Vo XXX appears on the
SolarEdge Power Optimizers Installation Guide – MAN-01-00112-1.2
Chapter 3: Power Optimizer Installation
Display
SafeDC Disable Button
On/OFF Button
Connection to String