Protect PV.500_MH Operating Instructions

The X5 interface can be switched from RS485 to RS232 using jumpers J4 and J5. The factory setting is RS485, i.e. all jumpers are inserted at J4. You have the option of switching the interface to RS232 by reconnecting all jumpers to J5.

Port 2 (X5): RS232 pin assignment

Pin number

Signal

Description

 

 

 

2

RxD

PC receiving data

 

 

 

3

TxD

PC sending data

 

 

 

5

GND

Interface reference potential

 

 

 

7

RTS

Handshake

 

 

 

8

CTS

Handshake

 

 

 

Housing

 

INV housing potential

 

 

 

If the RS232 version is used for this port, please use a 1:1 data line.

Controller Area Network (CAN) at X4

Up to four remote panels can also be connected to the potential- free CAN interface for central signalling and display.

1

Figure 16

Connector X4

Port 3 (X4): CAN pin assignment

Pin number

Designation

 

 

1

GND

 

 

2

Data_L

 

 

3

Data_H

 

 

Cable colour coding White + brown Yellow

Green

Please use a shielded CAN bus cable as the line,

e.g. 2 x 0.22 twisted pair Lapp "UNITRONIC-BUS LD".

Route the CAN bus line from the PV inverter to the remote panel. In a CAN bus network, the ends of the bus must always be termi- nated. A 120 ohm terminating resistor is pre-installed at connector X4 of the CAN bus connection as standard.

7.1.4Configuration

The communication interface does not have to be configured in or- der to connect the PV inverter to the data logger system of the AEG "PV.LoG". Once the bus cable has been installed and the system has been powered up, the configuration settings are made fully automatically.

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AEG PV.500-MH Configuration, Port 2 X5 RS232 pin assignment, Controller Area Network can at, Port 3 X4 can pin assignment