Solare Datensysteme Solar-Log - Manual (Page 149)

149
Mastervolt
Mastervolt (RS485)
49 Mastervolt
49�1 Mastervolt (RS485)
Easy Installation Termination Addressing Interface
Yes Yes No RS485
Overview
•
Integrated interface
•
Where to connect: RJ45 plug outside the housing floor.
•
2-pin wiring
•
Communication address does not have to be assigned
•
Multi-string technology
Mastervolt inverters are fitted with 1 or 2 MPP trackers depending on the model. Each string input is moni-
tored separately and ideally adjusted to the connected modules. Some inverters are also divided internally
into 2 or even 3 individual inverters. For example, the QS6400 is recognized as 2 inverters each with 2
strings, an XL 15 as 3 independent XL5000s.
The Solar-Log™ automatically detects how many inverters and strings are active during inverter detection.
Note
A maximum of 20 inverters can be connected per RS485 bus.
Note
The order in which the inverters are displayed in the Solar-Log™ after detection is random.
We strongly recommend that you change the order of the inverters immediately after de-
tection at startup, in the
Configuration/Basis/Inverters dialog box.
The inverters can be identified using the displayed serial number.
•
Installation steps
• Switch off the inverters and Solar-Log™
• Connect inverters to the Solar-Log™
• Connect the inverters to each other
Connect inverters to the Solar-Log™
The wiring is done using a
•
ready-made Mastervolt data cable (optional extra; not supplied)
or
•
self-made cable connection with RJ45 data cable and terminal block connector.