SMA SB 2500 - Manual (Page 2)

DANGEr!
Electric shock caused by high voltage in the inverter.
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 qualified person:
• Electrical installation
• Repair
• Modification
CAUTION!
risk of injury from touching the enclosure during operation.
Burns to the body.
• During operation, only touch the lid and display.
NOTICE!
Overvoltage in the inverter if yellow LED flashes 4 times.
Destruction of the inverter.
• Inform your installer immediately if the yellow LED should
start flashing and the following display message appears.
Operation 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.
1 x tap: The backlight is switched on. The backlight shuts off
automatically after 2 minutes.
1 x tap again: The display switches to the next notification.
2 x taps in succession*: In turn, the display shows the inverter type,
the firmware version of the internal processors, and the country standard
that is set.
Display Messages
Operation 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 five 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
Disturbance 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)
DC overvoltage
There is a too high DC input voltage connected to the inverter.
Immediately inform your installer.
Status Designation function
All LEDs
flashing
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
flashing
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
flashing
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.
Measurement channel Description
E-total Total amount of energy fed in
Event-Cnt Number of events that have occurred
Fac Power frequency
Error Identification 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.
Message Description
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) fulfilled.
* From firmware version 4.00
LED STATES
SAfETY PrECAUTIONS PrODUCT OVErVIEw
Cooling fins
Enclosure lid
Display
LEDs
Serial number
Identification of the Sunny Boy by the type label
Operation
Ground fault or varistor defective
Disturbance
DISPLAY
STATUS MESSAGES MEASUrEMENT ChANNELS