SMA Solar Technology AG
5 Electrical Connection
Installation Manual
485BRD-10-IA-en-12
15
5.5 Preparing the Cable Gland on the Inverter
In order to prepare the cable gland on the inverter, you have to know whether one or two cables are
to be connected to the 485 data module and whether the multi-function relay in the inverter is to be
used immediately or at a later time.
If you wish to connect one or two cables to the 485 data module and do not want to use the
multi-function relay in the inverter neither immediately nor at a later time, prepare the M25 cable
gland on the inverter for one or two cables.
If you wish to connect two cables to the 485 data module and the multi-function relay in the inverter
is used immediately or at a later time, you must remove the Ethernet socket from the inverter and mount
another M25 cable gland on the inverter.
Preparing the Cable Gland on the Inverter for One or Two Cables
1. Unscrew the swivel nut from the M25 cable gland and push out the sealing plug.
2. If one cable is to be connected, remove the cable support sleeve with one hole from the
M25 cable gland and insert the cable into the one-hole cable support sleeve.
3. If two cables are to be connected, remove the
cable support sleeve with one hole from the M25
cable gland and insert the cables into the supplied
two-hole cable support sleeve.
4. Press the cable support sleeve into the cable gland and lead each cable all the way up to the
sockets on the 485 data module.
5. Screw the swivel nut onto the M25 cable gland.
6. Remove the protective cover of the multi-function relay from the inside of the inverter.
The protective cover is no longer required.