SB25_30-BA-BEN115030 | IMEN-SB25_30 | Version 3.0 EN
PV Inverter
ES
Operation display.
Ground fault or varistor defective.
Inform your installer.
An error has occurred. Inform your installer .
You can operate the display by tapping it (see section entitled "Operation").
Beware of hazardous voltage.
The inverter operates at high voltages. All electrical work
on the inverter must be carried out by electrically qualied persons
only.
Beware of hot surface.
The inverter can become hot during operation. Avoid contact during operation.
Observe enclosed documentation.
The inverter must not be disposed of together with the household waste.
Further disposal information can be found in the enclosed installation manual.
CE marking. The inverter complies with the requirements of the applicable EC
directives.
RAL quality mark for solar products. The inverter complies with the requirements of
the German Institute for Quality Assurance and Labeling.
Direct current (DC)
Alternating current (AC)
The inverter is protected against dust intrusion and water jets from any angle.
The inverter has a transformer.
Abbreviation for "Alternating Current".
Abbreviation for "Direct Current".
Controlled reduction of power due to excessive temperature or the grid operator's specications, e.g.
using the Power Reducer Box.
The Electronic Solar Switch is part of the inverter DC disconnection unit. The
Electronic Solar Switch must be securely inserted into the bottom of the inverter and must
only be removed by electrically qualied persons.
Operating point of the inverter depending on current/voltage of the PV array. The actual position of
the MPP changes constantly, depending on the level of radiation and cell temperature.
Abbreviation for photovoltaics.
The varistors protect the electronics in the inverter from atmospherically coupled energy peaks, such as
those that can occur when lightning strikes nearby.
If you have technical problems, rst contact your installer. The following information is required in
order to provide you with the necessary assistance:
• Inverter device type
• Inverter serial number
• Type and number of PV modules connected
• Blink code or display message of the inverter
• Optional equipment (e.g. communication devices)
Sonnenallee 1
34266 Niestetal, Germany
www.SMA.de
Inverters +49 561 9522 1499
Communication: +49 561 9522 2499
Fax: +49 561 9522 4699
Check the inverter and lines for any visual signs of external damage. Contact your installer if you nd
any damage. Do not perform any repair work yourself.
If the inverter is dirty, clean the enclosure lid, the display, and the LEDs using only clean water and a
cloth.
Ask your installer to check for correct inverter operation at regular intervals.
Even when no external voltage is present, there can still be high voltages in the inverter.
The following work must only be carried out by a trained electrically qualied person:
• Electrical installation
• Repair
• Modication
• During operation, only touch the lid and display.
• Inform your installer immediately if the yellow LED should
start ashing and the following display message appears.
The display shows the current values of your plant. The displayed values
are updated every 5 seconds. The display is operated by tapping on it.
The backlight is switched on. The backlight shuts off
automatically after 2 minutes.
The display switches to the next notication.
In turn, the display shows the inverter type,
the rmware version of the internal processors, and the country standard
that is set.
Upon error-free connection of the inverter to the grid, after
approximately one minute, the display starts alternating between the
messages shown below. Each message appears for ve seconds, then
the cycle starts over.
Energy generated on the current day
Operating state
Current feed-in capacity
Voltage of the PV array
Total amount of energy fed in
Total number of operating hours in feed-in operation
In the event of a disturbance, the inverter displays the status
"Disturbance" and an error message. Inform your installer.
The following messages will be issued:
Energy generated on the current day
Operating state "Disturbance"
Operating state
Error message
Measured value at the time of the disturbance
Current measured value (only displayed if a measured value is
responsible for the disturbance)
There is a too high DC input voltage connected to the inverter.
inform your installer.
All LEDs
ashing
Start phase The inverter is in the start phase.
All LEDs are
on
Initialization The inverter initializes.
All LEDs are
off
Disconnection The DC input voltage at the inverter is too low for
feed-in.
Green
LED is
permanently
on
Feed-in
operation
The inverter is feeding into the power distribution
grid.
Green LED
ashing
Waiting, grid
monitoring
The inverter monitors the grid and waits for the DC
voltage to reach a certain level so that it can start
feeding the grid.
Stop Operation interrupted.
Derating The inverter limits its active power.
Red LED on Warning A ground fault has occurred or one of the thermally
monitored varistors on the DC input side is defective.
Inform your installer.
Yellow
LED is
permanently
on
Disturbance The inverter is operating in the "Operation
constantly disabled" state. This can have several
causes. Inform your installer.
Yellow LED
ashing
Disturbance The inverter displays a disturbance. This can have
several causes. Inform your installer.
If your inverter is equipped with a communication component, numerous measurement channels and
messages can be transmitted for diagnostic purposes.
E-total Total amount of energy fed in
Event-Cnt Number of events that have occurred
Fac Power frequency
Error Identication of the current disturbance/error
h-On Total operating hours
h-total Total number of operating hours in feed-in operation
Iac Line current
Ipv Direct current
Power On Total number of grid connections
Pac Generated AC power
Riso Insulation resistance of the PV plant prior to the grid connection
Serial Number Inverter serial number
Mode Display of the current operating state
Vac Line voltage
Vpv PV input voltage
Vpv-Setpoint PV setpoint voltage
Your inverter can be in various operating states. These are displayed as status messages, which can
vary according to the type of communication.
Derating Overtemperature in the inverter. The inverter reduces its power to prevent
overheating. To avoid unnecessary output losses, the design of the PV plant
should be checked. Inform your installer.
Error An error has been detected. Inform your installer.
MPP The inverter is operating in MPP mode. MPP is the standard display message
when operating under normal irradiation conditions.
grid mon. Grid monitoring
This message appears during the startup phase, before the inverter connects to
the grid; it usually appears in the morning and evening when there is little solar
irradiation and after an error has occurred.
offset Offset adjustment of the measurement electronics.
Disturbance,
disturbance
Disturbance. This message appears for safety reasons and prevents the inverter
from connecting to the grid. Inform your installer.
Stop Operation interrupted.
V-Const Constant voltage mode.
waiting The conditions for connecting are not (yet) fullled.
* From rmware version 4.00
Cooling ns
Enclosure lid
Display
LEDs
Serial number
Identication of the Sunny Boy by the type label
Operation
Ground fault or varistor defective
Disturbance
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SMA SUNNY BOY 2500 User manual
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