SMA SSM-U-1610 Instrucciones De Instalación página 30

6 Deinstalling the overvoltage protection unit for Ethernet communication
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.
• Disconnect the inverter on the DC side (see inverter manual). Always observe the five safety
rules.
• Disconnect the DC sub-distribution (see the DC sub-distribution manual). Always observe the
five safety rules.
• Disconnect all DC sub-distributions that are connected in parallel in the DC connection area
(see the manual of the respective DC sub-distribution). Always observe the five safety rules.
Additionally required material (not included in the scope of delivery):
☐ Two to four plugs to seal the membrane openings:
– For membrane openings with a 3.2 mm to 6.5 mm diameter: plug with a 6 mm diameter;
available at www.icotek.com.
– For membrane openings with a 5.0 mm to 10.2 mm diameter: plug with a 10 mm
diameter; available at www.icotek.com.
Procedure:
1. Disconnect the inverter on the DC side (see inverter manual).
2. Disconnect the SMA String-Monitor (see SMA String-Monitor manual).
3. Disassemble the protective covers in the SMA String-Monitor.
4. Remove the cables on the electronic assembly at terminals X7 and X9.
5. On the surge arresters, remove the cables from the EQUIP terminals, release the mounting tie
and pull the cables out of the SMA String-Monitor.
6. On the surge arresters, remove the cables from the LINE IN terminals, and pull the cables out
of the cable channel. To do this, remove the cover of the cable channel, take the cables out
and replace the cover.
7. Remove the RJ45 connectors from the cables. Make sure that no pieces of cable are dropped
into the SMA String-Monitor.
8. Pull the cables out of the SMA String-Monitor through the membrane.
9. Close the membrane openings with the plugs.
10. Dismantle the end clamps and the surge arresters from the top-hat rail and remove them from
the SMA String-Monitor.
11. Remount the protective covers in the SMA String-Monitor.
12. Switch the SMA String-Monitor back on if required.
13. Close the SMA String-Monitor.
30 SSMAbleitKomm-IA-xx-11
SMA Solar Technology AG
Installation Manual