User manual

Note

The settings must be made on the external data loggers as specified by the manufacturer,

before connecting.

The wiring diagram of the RS485 bus is shown below.

RS485

RS485 RS485

Fig. 9: Wiring diagram

①

External data logger

②

First inverter

③

Inverter

④

Last inverter, terminated

⑤

RJ45 standard cable (patch cable)

3.6.4 Alternative RS485 data connection cable

NOTICE!

Material damage caused by electrical voltage! The alternative data connection cable may

only be manufactured by professional personnel.

The alternative data connection cable is a Cat-5 cable for long data connections. The following

applies to the alternative data connection cable:

n The total length of the RS485 bus must not exceed 1,000 m (Master/first inverter to last

inverter).

n Use the pin assignment according to the table below if the alternative data connection cable is

connected to the RJ45 socket of the first inverter or to the connector of an external data logger.

747.431 | Z09.3 | 2017-09-05