Troubleshooting; Contact - SMA SSM-U-1610 Instrucciones De Instalación

SMA Solar Technology AG
7 Troubleshooting
Danger to life from electric shock due to live voltage
High voltages are present in the live components of the DC subdistribution. Touching live
components results in death or serious injury due to electric shock.
• Wear suitable personal protective equipment for all work on the product.
• Do not touch any live components.
• Unless live voltage is absolutely necessary, always disconnect all DC subdistributions and
the DC side of the inverter prior to performing any work on the DC subdistribution (see
manuals of the DC subdistribution and the inverter). Always observe the five safety rules.
Problem
The SMA String-Moni-
tor cannot be acces-
sed.
8 Contact
You can find the contact data at www.SMA-Solar.com.
Installation Manual
Cause and corrective measure
The overvoltage protection unit is possibly defective or may have been
destroyed by surge voltage.
Corrective measures:
• Check whether the communication connection has been interrupted
by the overvoltage protection unit.
If this is the case, the overvoltage protection unit is defective.
Possibly due to overvoltage, e.g. a lightning strike. Perform the
following steps:
– Replace the overvoltage protection unit (see Section 5, page 29
).
– Check the electronic assembly for visible damage, e.g., charred
parts or connections. If the electronic assembly is damaged,
contact the Service (see Section 8, page 31).
– Check the Ethernet cable for visible damage, e.g., charred
areas on the cable sheath. If Ethernet cables are damaged,
replace them (see Section 5, page 29).
Ethernet connection is not set up correctly.
Corrective measures:
• On the user interface of the inverter, check the network connection
to the SMA String-Monitor (see inverter manual).
• Ensure that all Ethernet cable plugs are inserted and locked.
• Ensure that the system router/network switch is switched on.
• Ensure that all DC subdistributions in the communication bus are
fully operational.
7 Troubleshooting
SSMAbleitKomm-IA-xx-11 31