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4 Operation
SMA Solar Technology AG
User ManualSBxx-US-1XP-41-BA-en-1040
Explanation of operating modes:
Operating mode Explanation
On
For using an additional DC disconnection unit independent of the inverter
between the inverter and PV generator that disconnects the generator.
SunSpec Shutdown
For using PV array disconnect switch as per the SunSpec interoperability
specification.
Off
The Rapid Shutdown function is disabled.
TS4 Shutdown
When using TS4 module technology TS4-R-F devices are excluded. With
TS4-R-F, SunSpec Shutdown must be selected.
No secure power supply operation when using PV array disconnect switch
as per the SunSpec interoperability specification
The secure power supply operation is not available if the Rapid Shutdown function of the
inverter is enabled and the PV array disconnect switches are used in accordance with the
SunSpec Interoperability Specification.
Procedure:
1. Open the user interface (see Section4.2, page23).
2. Log into the user interface as an Installer.
3. On the right-hand side of the menu bar, select the menu User Settings (see Section4.4 "Start
Page Design of the User Interface", page29).
4. In the context menu, select [Starting the installation assistant].
5. Select [Save and next] until you reach the Safety functions step.
6. Configure the Rapid Shutdown function according to the DC disconnection unit used.
4.16 Changing the Operating Mode of the Multifunction
Relay
The default operating mode of the multifunction relay is Fault indication (FltInd) . If you decide to
use another operating mode and have established the correct electrical connection for this
operating mode and the associated connection variant, you will have to change the operating
mode of the multifunction relay and make other settings, if necessary.
The basic procedure for changing operating parameters is explained in another section (see
Section4.13 "Changing Operating Parameters", page37).
Procedure:
1. Call up the menu Device Parameters.
2. Select [Edit parameters].
3. In the parameter group Device > Multifunction relay > Operating mode select the
parameter Operating mode of multifunction relay or Mlt.OpMode and set the desired
operating mode.