User manual

3.6.8 Modbus RTU data connection cable
NOTICE!
Material damage from electrical current! The alternative data connection cable may only be
manufactured by technical professionals.
On the inverter side, a 4-pole telephone cable with RJ10 connector may be used as data connection
cable.
41
Fig. 10: Contact assignment (= line number) of the RJ10 plug
Device
Connection
Inverter
RJ10
Signal
Contact 1 Data A
2 Data B
3 Ground
4 —
NOTICE!
Danger of destroying the Modbus RTU input of the inverter. Contact 4 of the RJ10 socket of
the inverter carries voltage <20V. Do not use this contact.
EN
747.431 | Z09.3 | 2017-09-05 32