SolarEdge Power Optimizer User Manual

Chapter 3: Power Optimizer Installation
SolarEdge Power Optimizers Installation Guide – MAN-01-00112-1.2
16
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.
Figure 8: The SolarEdge Key
► To disable the SafeDC mode:
1 Press the ON/OFF button ( ) to turn the SolarEdge Key ON. The message Vo XXX appears on the
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 p
ower 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).
Display
SafeDC Disable Button
SafeDC Enable Button
On/OFF Button
Connection to String

SolarEdge Power Optimizer Specifications

General

Brand	SolarEdge
Model	Power Optimizer
Category	Inverter
Language	English