Procedure:
1.
Danger to life due to high voltages of the PV array
When exposed to sunlight, the PV array generates dangerous direct voltage. Touching the DC conductors can
lead to lethal electric shocks. Even if the DC load-break switch of the inverter is in the
O
, position, there will be
dangerous direct voltage present in the DC conductors and on the
DC-in
connecting terminal plate in the
Connection Unit of the inverter.
• Prior to performing any work on the inverter, always disconnect the inverter from voltage sources on the AC
and DC sides and secure it against reconnection (see the inverter manual).
• Leave the
DC-in
connecting terminal plate plugged into the Connection Unit of the inverter and only touch it
on the black enclosure.
• Do not remove the DC cable from the connecting terminal plate.
2. Attaching the cable gland on the inverter:
• Push the sealing plug from the inside out of the second
hole from the left in the inverter enclosure and retain it for
future decommissioning.
• Unscrew the counter nut from the supplied cable gland.
• Screw the cable gland with the counter nut on the inverter
enclosure opening.
3. Connecting the antenna cable plug:
• Unscrew the swivel nut from the cable gland.
4 Mounting
SMA Solar Technology America LLC
Installation Manual
EXTANT-US-40-IA-en-11
14