SMA Solar Technology AG
2. If an additional DC load-break switch is available, switch off the DC load-break switch and
secure against re-connection.
3. If the multifunction relay is used, switch off any supply voltage to the load.
4.
Danger to life due to electric shock and electric arc when disconnecting
the ESS in the event of an error
If an acoustic signal sounds, the inverter is in error mode. In this case, the removal of the
ESS results in death or serious injury due to electric shock and electric arc.
• Test whether there is an acoustic signal.
• If an acoustic signals sounds and the display shows an error message that prohibits
removing the ESS, wait until dark. The ESS can only be removed once it is dark.
• If no acoustic signal sounds and the display does not show an error message, remove
the ESS.
5. Wait until the LEDs and the display have gone out.
6. Release all six screws of the lower enclosure lid
using an Allen key (AF 3).
7. Flip the lower enclosure lid up and remove it.
8.
Risk of burns when touching the DC protective cover
The DC protective cover can get hot during operation.
• Do not touch the DC protective cover.
Replacement Manual
5 Disconnecting the Inverter from Voltage Sources
DANGER
CAUTION
AST-STPTL10-RM-xx-10
13