In this article you find information and corrective measures for the event numbers 77, 7701, 7702 and 7703
07.08.2019•Technical Information
Before connecting to the grid, the inverter checks the grid relays and monitors the grid quality. Only if all test results are positive, the relays are switched and the inverter connects to the grid.
For all 3-phase inverters (STP): Especially in new installations, (but also in existing installations, depending on the grid quality on site)the error often appears in connection with a shifted neutral point / star point. This can be caused by larger consumers on the grid, for example air conditioners, pumps, large motors and lifts or by a faulty installation.
Therefore, it is advisable to check the installation with regard to the correct connection of neutral conductor and PE (grounding), not only at the inverter connection but also in the sub-distribution and main distribution, and - depending on the plant size and system configuration - possibly also on the grid / plant transformer.
Special cases: For all Sunny Boy (SB) inverters and for the Sunny Tripower (STP) of the type STP 20000TLEE-10, STP 20000TL-30, STP 24000TLUS-10 and STP
xx000TLEE-JP-10/11:
Please clarify the corrective action with the SMA Service before you check the AC installation.
Corrective measures:
If you are the system operator, please contact your installer.
DANGER! The tasks described below may only be performed by Electrically Qualified Persons:
Check the complete AC installation by measurement, visual and mechanical inspection for neutral and grounding problems:
AC-connections of the Sunny Tripower
Sub-distribution and Main Distribution
depending on the system configuration: if necessary also the grid / plant transformer (depending on the plant size, plant configuration and plant location (installation country))
In many cases, it turned out that large electric consumer loads (air conditioners, pumps, large motors, lifts, ...) have been the cause for shifted neutral points. If that might be the case in the affected plant, check the installation at the according time.
Check that a suitable load disconnection unit has been installed: Do not use screw-type fuses (e.g. DIAZED or NEOZED fuse) as load-break switches! Screw-type fuses cause damage to the inverter! Use a load-break switch or circuit breaker as a load disconnection unit. See the inverter’s operating / installation manual and the technical information “Circuit Breaker”
Check the AC installation for loose terminals, damaged fuses, etc..
If, however, the message keeps on appearing, even though the AC installation has been checked by a skilled person, the cause and corrective action must be clarified by SMA Service.
In this case, please contact the SMA Service with the following information:
Device type and serial number of the Inverter
Installation date
Event number
How long has the error been present for now? Is it sporadic or continuous?
Are screw-type fuses used as load disconnection units in the installation?
Are large electric consumer loads in or near the installation?
After the check of the AC installation, is a faulty installation (loose cables, damaged fuses,...) ruled out as the cause?
Grid form: TN-C grid, TT-gid, ...
Measurement results of the N-PE, L-N, L-PE, L-L voltages:
AC-Terminal of Sunny Tripower: N - PE = _______
AC-Terminal of Sunny Tripower: L1 - N, L2 - N, L3 - N = _______ _______ _______
AC-Terminal of Sunny Tripower: L1 - L2, L1 - L3, L2 - L3 = _______ _______ _______
AC-Terminal of Sunny Tripower: L1 - PE, L2 - PE, L3 - PE = _______ _______ _______
Sub-Distribution: N - PE = _______
Sub-Distribution: L1 - N, L2 - N, L3 - N = _______ _______ _______
Sub-Distribution: L1 - L2, L1 - L3, L2 - L3 = _______ _______ _______
Sub-Distribution: L1 - PE, L2 - PE, L3 - PE = _______ _______ _______
Main Distribution: N - PE = _______
Main Distribution: L1 - N, L2 - N, L3 - N = _______ _______ _______
Main Distribution: L1 - L2, L1 - L3, L2 - L3 = _______ _______ _______
Main Distribution: L1 - PE, L2 - PE, L3 - PE = _______ _______ _______
if measured: Grid Transformer: N - PE = _______
if measured: Grid Transformer: L1 - N, L2 - N, L3 - N = _______ _______ _______
if measured: Grid Transformer: L1 - L2, L1 - L3, L2 - L3 = _______ _______ _______
if measured: Grid Transformer: L1 - PE, L2 - PE, L3 - PE = _______ _______ _______
In this article you find information and corrective measures for the event number 62, 6201, 6202 and 6203.
11.05.2020•Technical Information
Error 62 or 6201 / 6202 / 6203 “Self-diagnosis” or “Device disturbance” is shown on the display, and the red LED lights up. When the error occurs, the inverter does not feed any power in.
If the message does not lead to relevant yield losses, e.g. because it only appears for a short time during the startup or shutdown process, no further action is necessary. The cause in this case is the fluctuating PV power in the lowest limit range.
However, if the message appears repeatedly or continuously, even after a full restart , the cause and corrective action must be clarified by SMA Service.
In this case, please contact the SMA Service with the following Information:
Device type and serial number of the Inverter
Event number
How long has the error been present for now? Is it sporadic or continuous?
Has a restart been performed yet?
Are there further error messages?
The system warning or error is identified by an event number and the corresponding event message. If possible, provide SMA Service with the 3- or 4-digit event number in all Service cases. Most SMA inverter types display a 3- or 4-digit event number.
12.09.2019•FAQ
The system warning or error is identified by an event number and the corresponding event message.
If possible, provide SMA Service with the 3- or 4-digit event number in all Service cases. Most SMA inverter types display a 3- or 4-digit event number.
Exception: All SB3-5000TL-20 inverters as well as the older STP8-17000TL-10 with a firmware version below 2.33.02.R only show the 1- or 2-digit event number on the display. In these devices, the 3- or 4-digit event number can be read out via communication (e.g. in the Sunny Explorer under Spot values / Status / Event number).
If the inverter is fitted with a display, the operating data of the inverter (e.g. current power, daily energy, total energy) as well as events or errors are shown there. Depending on whether the error appears in the utility grid, on the inverter or in the PV array, the error’s event number is shown beneath the relevant symbol on the display.
In case of disturbances (such as a device disturbance) the inverters automatically restart and show “RESTART IN XXXS” on the display.
The communication product (e.g. Sunny Explorer) displays warnings and errors that apply to the inverter, the utility grid or the PV array. The warning or error is identified there by an event number and the corresponding message.
Note: Some communication products of third-party suppliers display event numbers that differ from SMA inverters in the communication device or portal. The Online Service Center articles always refer to event numbers reported by SMA inverters. If in doubt, the event number can be read out via the inverter display or SMA communication (e.g. Sunny Explorer).
Further error messages:
Former event numbers can be read out via communication (e.g. Sunny Explorer, Sunny WebBox, Sunny Portal):
If the inverter has been accessed with the Sunny Explorer since commissioning, and the time stamp has thus been set in the background, former event numbers can be read out from the “Events” tab in the Sunny Explorer.
Additional information about this can be found in the Sunny Explorer user manual. It is available for download at https://www.sma.de/en/service/downloads.html.
Attachment (1)
Attachment (2)
(1)
The information provided in knowledge articles of the SMA Online Service Center (OSC) are generally intended for photovoltaic professionals, electrical installers and system operators. SMA Solar Technology AG accepts no liability for the information given in the Online Service Center. SMA Online Service Center terms and conditions apply. All work on the inverter and the cabling of the photovoltaic array must be carried out by electrically qualified persons. Especially activities marked with the warning: “DANGER!” in SMA publications of any kind, may only be performed by electrically qualified and skilled persons. Electrically qualified persons are trained to handle electrical installations and are familiar with the risks involved; they are aware of the standards, directives and laws applicable in the installation country.
(2)
In Germany, and as a basis for comparison in other countries, DIN VDE 1000 10 applies. Electrically skilled persons must have the following qualifications: - Knowledge of how an inverter works and is operated, - (Knowledge of how batteries work and are operated), - Training in how to deal with the dangers and risks associated with installing, repairing and using electrical devices, (batteries) and installations, - Training in the installation and commissioning of electrical devices and installations, - Knowledge of all applicable laws, standards and directives, - Knowledge of and compliance with the operating and installation manual of the inverter with all safety information. Always follow the IMPORTANT SAFETY INSTRUCTIONS and WARNINGS provided with the SMA product owned.
In this article you find information and corrective measures for the event numbers 64 and 64xx.
29.11.2019•Technical Information
If the message does not lead to relevant yield losses, e.g. because it appears only
rarely (a maximum of once or twice a week) or because it only appears for a short time during the startup or shutdown process, no further action is necessary.
However, if the message appears repeatedly or continuously, even after a full restart , the cause and corrective action must be clarified by SMA Service.
In this case, please contact the SMA Service with the following Information:
Device type and serial number of the Inverter
Event number
How long has the error been present for now? Is it sporadic or continuous?
Has a restart been performed yet?
Are there further error messages or is the device beeping?
Special cases: 6406 / 6407 / 6429
When these errors occur, SMA Service needs additional information in order to clarify the cause and corrective action. Otherwise, the replacement device will report the same error in some system arrangements.
When you contact SMA Service, please give us the following information, in addition to the information above:
Type and number of connected PV modules
Example:
Input A: 3 strings each with 16 SunSolar XY250Z modules
Input B: 1 string with 13 SunSolar XY250Z modules
Does the inverter feed in power despite the error? If so, to what level?
Is the device beeping ?
10.06.2020•Technical Information
PublicLED signal | Explanation |
---|---|
The green LED is flashing (two seconds on and two seconds off) | Waiting for feed-in conditions The conditions for feed-in operation are not yet met. As soon as the conditions are met, the inverter will start feed-in operation. |
The green LED flashes quickly | Update of central processing unit The central processing unit of the inverter is being updated. |
The green LED is glowing | Feed-in operation The inverter feeds in with a power of at least 90%. |
The green LED is pulsing | Feed-in operationThe inverter is equipped with a dynamic power display via the green LED. Depending on the power, the green LED pulses fast or slow. If necessary, you can switch off the dynamic power display via the green LED. |
The green LED is off | The inverter is not feeding into the utility grid. |
The red LED is glowing | Event occurred If an event occurs, a distinct event message and the corresponding event number will be displayed in addition on the inverter user interface or in the communication product (e.g. SMA Data Manager). |
The blue LED flashes slowly for approx. one minute | Communication connection is being established The inverter is establishing a connection to a local network or is establishing a direct connection to an end device via Ethernet (e.g. computer, tablet PC or smartphone). |
The blue LED is glowing | Communication active There is an active connection with a local network or there is a direct connection with an end device via Ethernet (e.g. computer, tablet PC or smartphone). |
11.05.2020•Technical Information
PublicEvent numbers 37 and 3701 indicate that the inverter has detected an excessively high residual current.
11.05.2020•Technical Information
In this article you find information and corrective measures for the event numbers 35 and 3501.
17.01.2020•Technical Information
11.05.2020•Technical Information
Public11.05.2020•Technical Information
PublicIn this article you find information and corrective measures for the event number 13 and 1302
11.05.2020•Technical Information