Version 1.4 1

Application Note - Viewing and Setting Inverter Grid Protection Values
Version History

Version 1.4, March 2023: Addition of “Vgrid Max 5” and “Vgrid Min 5” protection settings

Version 1.3: January 2019: Update of compatible CPU versions

Version 1.2: November 2018: New section on how to view and set grid protection values using SetApp

Version 1.1, October 2018: New section on how to view and set grid protection values using the Monitoring Platform

Contents
Application Note - Viewing and Setting Inverter Grid Protection Values.............................................................................................................................. 1Introduction .............................................................................................................................................................................................................................................................1

Viewing and Modifying Grid Protection Settings using SetApp .......................................................................................................................................................1
Viewing and Modifying Grid Protection Settings using the Inverter Display ..............................................................................................................................3

Viewing and Modifying Grid Protection Settings using the Monitoring Platform.....................................................................................................................6Safety Symbols Information ................................................................................................................................................................................................................ 9
Support Contact Information ............................................................................................................................................................................................................ 10Introduction

This document describes how to view and set grid protection values via SetApp, via the inverter display and via the Monitoring Platform.
WARNING!

Setting the grid protection values is prohibited unless explicitly approved by the grid operator. This feature is offered toyou as a convenience, and SolarEdge disclaims all responsibility for any implications of modifying the grid values of theinverter. SolarEdge will in no event be liable to you, any customer or any third party in connection with these changes.

Viewing and Modifying Grid Protection Settings using SetApp
You can use SetApp to view or modify grid protection values, or restore defaults.
1.
2.

To access the grid protection settings:

From the SetApp main menu, select Maintenance >> Grid Protection. A pop-up message box requires you to enter a password inorder to modify the grid protection settings. Contact your SolarEdge support representative to obtain this password.
Enter the password and tap on the Agree button. The Grid Protection page appears as shown in the figure below:

Grid Protection
Vgrid Max.
Vgrid Min.

Fgrid Max.
Fgrid Min.

Grid Monitoring Time (GRM)

Application Note - Viewing and Setting Inverter Grid Protection Values

23.

Select one of the following settings for viewing and modification:

Setting

Description

Maximum acceptable grid voltage for the installed inverters.
When selecting Vgrid Max. rows 1 to 4:

Vgrid Max.

V - maximum voltage [V]ms - trip time, in milliseconds. The trip time indicates the time after which the inverter should disconnect
from the grid if the grid voltage is out of range.

The row “Vgrid Max 5” is a special protection setting that tracks the running mean value of the grid voltage
measurements. The time (in milliseconds) defines the time window over which the measurements areaveraged. If the averaged value exceeds the voltage threshold, the inverter shall trip in less than 100
milliseconds.

Tap on the Edit button to modify the thresholds.

Minimum acceptable grid voltage for the installed inverters.
When selecting Vgrid Min. rows 1 to 4:

Vgrid Min.

V - minimum voltage [V]ms - trip time, in milliseconds. The trip time indicates the time after which the inverter should disconnect
from the grid if the grid voltage is out of range.

The row “Vgrid Min 5” is a special protection setting that tracks the running mean value of the grid voltage
measurements. The time (in milliseconds) defines the time window over which the measurements areaveraged. If the averaged value is less than the voltage threshold, the inverter shall trip in less than 100
milliseconds.

Tap on the Edit button to modify the thresholds.

Maximum acceptable grid frequency for the installed inverters.
Fgrid Max.

F - maximum frequency [Hz]ms - trip time, in milliseconds. The trip time indicates the time after which the inverter should disconnect
from the grid if the grid frequency is out of range.

Tap on the Edit button to modify the thresholds.

Minimum acceptable grid frequency for the installed inverters.
Fgrid Min.



F - minimum frequency [Hz]ms - trip time, in milliseconds. The trip time indicates the time after which the inverter should disconnect
from the grid if the grid frequency is out of range.

Tap on the Edit button to modify the thresholds.
Grid Monitoring Time(GRM)
4.

The required number of milliseconds during which the voltage and frequency return to the threshold range
before the inverter can reconnect to the grid.

Tap on the Done button to save the modified settings.

Application Note - Viewing and Setting Inverter Grid Protection ValuesViewing and Modifying Grid Protection Settings using the Inverter Display3You can use the inverter display to view and set grid protection values.
NOTE

It is highly recommended to ensure that all the inverters at the site have CPU version 3.22xx or 3.24xx and above (but notversion 4.x.xxx). For inverters with CPU version 4.x.xxx, refer to the SetApp use guidelines in the previous section). If
required, upgrade the CPU software. To check the CPU version, see the section: Checking an Inverter Communication
Board Firmware (CPU) Version.

Checking an Inverter Communication Board Firmware (CPU) Version
1.

To check a communication board firmware (CPU) version:Short-press the LCD light button until the following screen is displayed:
ID:######## ##DSP1/2:x.xxxx/x.xxxx
CPU:0003.1600
Country:XXXXX

2.

Check the CPU version number. If required, upgrade the inverter software as described in the application note:
Software Upgrade using SD/MicroSD Card

Viewing and Modifying Grid Protection Settings
1.
2.

3.

To view grid protection values via the inverter display:

Enter Setup mode: Press and hold down the LCD light button located at the bottom of the inverter, and release after 5 seconds; thevarious inverter menu screens are displayed.

Short-press the LCD light button to toggle between the menu screens.

Long press to select Maintenance -> Grid Protection
D a t e a n d T i m e
Reset Counters
Fa cto ry R e se t
SW Upgrade SD-Ca rd
AFCI <En>
Manual AFCI Test
Diagnostics
Optimizer Conf.
Grid Protection
ExIt
The Grid Protection menu is displayed:
View
Set

Application Note - Viewing and Setting Inverter Grid Protection Values

44.

Select View. A list showing the inverter’s grid protection values is displayed. Each press on the external LCD light button rotates theparameters displayed on the screen in sequence, as shown in the example below:

The grid protection parameters are described in the table below:

Setting

Description

Vg<min, max> <1, 2>

The minimum and maximum grid voltage thresholds (in volts) and the trip time in milliseconds or seconds. The
trip time indicates the time after which the inverter should disconnect from the grid if the grid voltage is out ofrange.

ID

Fg<min, max> <1, 2>

GRM Time

The inverter serial number, which appears as a header in the sequential screens.

The minimum and maximum grid frequency thresholds (in Hz) and the trip time in milliseconds or seconds.
The trip time indicates the time after which the inverter should disconnect from the grid if the grid frequency isout of range.
Grid monitoring time - the duration (in seconds) that the grid voltage and frequency must be within theabove-defined ranges before the inverter can reconnect to the grid. For example, if the GRM time is set to 60
seconds, the inverter checks that the grid is within the voltage and frequency ranges for 60 seconds before
reconnecting to the grid.

Application Note - Viewing and Setting Inverter Grid Protection Values

5To set grid protection values via the SolarEdge inverter display:
Setting the values requires entering a password, using the internal user buttons. This procedure involves opening the inverter cover.
1.

2.

Contact your SolarEdge support representative to obtain this password.

Open the inverter cover as described in your SolarEdge Inverter’s Installation Guide.
WARNING!

ELECTRICAL SHOCK HAZARD. Do not touch uninsulated wires when the inverter cover is removed.

3.

4.

Enter Setup mode as described in your SolarEdge Inverter’s Installation Guide.

Select Maintenance -> Grid Protection ->Set. A screen requiring a password is displayed:

Please enterPassword
5.

Enter the password provided by your SolarEdge support representative. The grid protection value setting menu is displayed:
VgMax1<261V,150ms>
VgMax2 <250V,580s>
VgMin1<187V,150ms>
VgMin1 <103V,580s>
FgMax1<50Hz,145ms>
FgMax2 <100Hz,600s>
FgMin1<47Hz,145ms>

6.

Select one of the entries, for example, “VgMax1”. A screen showing the grid protection value and the Hold Time (trip time) isdisplayed:
VgMax1 <261.5V>
Hold Time <150ms>

7.

Set the required values. For example:
VgMax1: 372.45V

Hold Time : 1.12 seconds

VgMax1[V]
372.45

VgMax1[ms]
1120

Application Note - Viewing and Setting Inverter Grid Protection Values6Viewing and Modifying Grid Protection Settings using the Monitoring Platform
You can set grid protection values, or restore defaults.

This feature is available via the Monitoring Platform for the supported inverter CPU versions listed below, when the inverter country

setting is set to one of the supported countries. To enable this feature for your account, contact your SolarEdge support representative.
For inverters with LED display: 3.22xx or 3.24xx and above.

For inverters with SetApp: 4.45.xxx and above.

If all inverters at the site do not have the required CPU version, the feature will be disabled. If at least one of the inverters at the site has
the required CPU version, the feature will be enabled and grid settings will be saved in the supported inverters.

Accessing Grid Protection Settings
1.

To access the grid protection settings:

Log in to the monitoring platform (monitoring.solaredge.com) using your user name and password.

2.

In the main window in the Site Name column click the required site name.

3.

Click on theicon and then click on Grid Settings. The Dashboard view appears.

Setting Grid Protection Values
1.

2.

To set grid protection values:
Access the Grid Settings tab.

Select Apply custom grid settings. The Grid Protection Values table appears. The values displayed in the table are the current gridprotection values that were retrieved from all inverters on site.

Application Note - Viewing and Setting Inverter Grid Protection Values

73.

Set the required grid protection values then click Save:
Voltage - between 0-400 Volt, 0.1V accuracy

Frequency - 40-70Hz, 0.01Hz accuracy
Time - 10-600000 milliseconds
NOTE

If required, click Cancel to return to the previously set grid protection values.
4.

A confirmation message appears. Click Yes. The Settings Status table appears.

5.

Check the Status column in the Inverter Settings Status table to ensure the change was successful for all inverters at the site. Thestatus types are:Success - grid settings were successfully applied.
Pending - grid settings update is in process.

Failed - grid settings were not applied. Click Retry, and if the operation fails again, contact your SolarEdge support
representative.
No communication - no communication between the inverter and the Monitoring Platform.

Not Supported - the inverter CPU version is 3.23xx or lower than 3.22xx, to enable this feature for this inverter upgrade its CPU
version. For more information, see the section: Checking an Inverter Communication Board Firmware (CPU) Version.

Application Note - Viewing and Setting Inverter Grid Protection Values

8Restoring Default Grid Protection Values
1.
2.

To restore default grid protection values:
Access the Grid Settings tab.

If no changes were made (locally or remotely), the default country settings are used. If changes were made, you can restore country
default grid settings by selecting Apply country default grid settings and clicking Save.

Viewing Event Logs
In the event log, you can view whether grid protection values are default or custom, as well as the grid protection value status.
To view an event log:
1.

In the Grid Settings tab, in the Settings status table click the Log icon
Settings log appears.

Application Note - Viewing and Setting Inverter Grid Protection Valuesof the inverter which settings log you want to view. The9Safety Symbols Information

The following safety symbols are used in this document. Familiarize yourself with the symbols and their meaning before installing oroperating the system.
WARNING

Denotes a hazard. It calls attention to a procedure that, if not correctly performed or adhered to, could result in injury or
loss of life. Do not proceed beyond a warning note until the indicated conditions are fully understood and met.
CAUTION!

Denotes a hazard. It calls attention to a procedure that, if not correctly performed or adhered to, could result in damage
or destruction of the product. Do not proceed beyond a caution sign until the indicated conditions are fully understoodand met.
NOTE

Denotes additional information about the current subject.
IMPORTANT SAFETY FEATURE
Denotes information about safety issues.
Disposal requirements under the Waste Electrical and Electronic Equipment (WEEE) regulations:
NOTE

Discard this product according to local regulations or send it back to SolarEdge.

Application Note - Viewing and Setting Inverter Grid Protection Values

10

Support Contact Information

If you are having technical problems concerning SolarEdge products, please contact us:

https://www.solaredge.com/service/support

Before contacting SolarEdge, make sure to have the following information at hand:
The model and serial number of the product in question.

The error indicated on the LEDs, the SetApp mobile application, the LCD screen, or on the monitoring platform, if there is suchan indication.

System configuration information, including the type and number of modules connected and the number and length of strings.

The method of communications with the SolarEdge server, if the site is connected.

The product's software version as it appears in the ID status screen.

To view YouTube videos for installing, wiring, and commissioning SolarEdge Inverters please click the links or scan
the following QR codes:
For more information on Installation:
https ://youtu.be/pjuo7KjRHXc

For more information on Wiring:https ://youtu.be/o_EgCnL_r38

For more information on Commissioning:https ://youtu.be/_JoiC4_H8s k

Application Note - Viewing and Setting Inverter Grid Protection Values