SMA Wireless-Set485-01 - Manual (Page 19)

SMA Solar Technology AG Electrical Connection
Installation Guide WirelessSet485-IEN091511 19
Inverter
6. Connect three leads to the connector clamps on the
inverter (see A). The connection may vary from one
module to another and is described in the
corresponding piggyback or module manual.
7. Establish termination on the inverter:
You have successfully connected the RS485 Power Injector to the inverter.
DANGER!
Risk of lethal electric shock when opening the inverter.
• Open the inverter as described in the inverter manual.
If... Then...
The inverter is in the middle of the RS485
communications bus. - Do not establish termination (jumper A).
- Do not establish pull-up/pull-down of signal
(jumpers B and C).
The inverter is at the end of the RS485
communication bus. - Establish termination (jumper A)
- Do not establish pull-up/pull-down of signal
(jumpers B and C).
A