Solare Datensysteme Solar-Log - Manual (Page 252)

252
Solutronic
Solutronic SP25-55 (RS485)
82 Solutronic
82�1 Solutronic SP25-55 (RS485)
Easy Installation Termination Addressing Interface
No Yes Yes RS485
Overview
•
Integrated interface
•
Where to connect: Terminal strip on the outside of the inverter
•
3-pin wiring
•
Communication address must be allocated.
•
All inverters must be fitted with firmware version 1.2.39 or later.
•
Inverters must be grounded otherwise this could lead to problems with inverter detection.
•
Installation steps
• Switch off the inverters and Solar-Log™
• Connect inverters to the Solar-Log™
• Connect the inverters to each other
• Allocate communication address
Connect inverters to the Solar-Log™
The wiring is done using a
•
ready-made data cable (optional extra; not supplied)
or
•
self-made, shielded 3 wire data cable and terminal block connector.
Procedure
1. If you are making the cable yourself, connect the wires as shown in the following diagram:
Solar-Log™ terminal strip connector Inverter terminal strip
Terminal Terminal
► 1 ► Pin 1 RS485-A
► 3 ► Pin 3 GND
► 4 ► Pin 2 RS485-B
2. If only one inverter is to be connected it must be terminated.
You will find detailed instructions for setting the inverters on the Solutronic website.
3. Close the inverter if no other inverters are to be connected.
4. Insert the terminal block connector into the Solar-Log™ RS485 socket.
Connect the inverters to each other
•
Connect using a 3 wire, shielded data cable
•
Where to connect: Terminal strip on the outside of the inverter