Detecting Errors With The Sunny Central String-Monitor; Confirm Warning - SMA SUNNY CENTRAL STRING-MONITOR US Technical Description

SMA Solar Technology AG
Display Meaning
> Warning 381 Communication with the Sunny
< Warning 381
12.1.2 Detecting errors with the Sunny Central String-Monitor
1. Go to "System > Devices" on the web interface.
2. Select the Sunny Central String-Monitor "SSM-US" in the list.
3. Select the tab "Spot values".
4. Select the spot value "Error".
5. Compare the spot value "Error" message with the following table and eliminate the warning.
Display Meaning
EvtEe Error The Sunny Central String-Monitor does not display the measured values
12.2 Confirm warning
Confirm the warning message via the Sunny WebBox. You will find detailed operating instructions for
the Sunny WebBox in the technical description of the Sunny WebBox.
1. Eliminating errors in the PV system (see Section 12 "Troubleshooting" (page 74)).
2. Log into the Sunny WebBox as an installer.
3. Select Sunny Central String-Monitor Controller „SCSMC" in the device list.
4. Select the "Parameters" tab.
☑ The browser displays the list of parameters for the Sunny Central String-Monitor Controller.
5. Select parameter „Ackn".
6. Select „quit" in the drop-down menu.
7. Select [Save].
☑ The warning is now confirmed.
Technical Description
Central String-Monitor has
failed.
>: Incoming warning
<: Outgoing warning
correctly. Please contact the SMA Serviceline (see Section 14 "Contact"
(page 80)).
Corrective measures
• Check under spot value
"SSMUWrnCode" to establish which
Sunny Central String-Monitor is faulty
(see Section 11.3.1 "Spot values
Sunny Central String-Monitor
Controller" (page 64)).
• Check communication wiring.
• Check operating mode of the Sunny
Central String-Monitor. If the Sunny
Central String-Monitor is switched off,
no communication can take place.
• Check monitoring period.
SSMUS-TUS094511
Troubleshooting
75